cool prestige update

README.md

@@ -47,7 +47,7 @@ New registrations receive **100.00** starting credits and **100 osu** (`STARTING
 ## Features
 
 - Login / register (username + password)
-- **Inventory**: sort by recent or value, multi-select sell at **instance** value (float/wear), bulk **Sell below** threshold, **favorites** (★ — cannot be sold or auto-sold; can still be bet in battles)
+- **Inventory**: sort by recent or value, multi-select sell at **instance** value (float/wear), bulk **Sell below** threshold, **favorites** (★ — cannot be sold or auto-sold; can still be bet in battles), **Vault** staking (up to **3** slots by default; +1 per Vault Capacity skill) — staked items earn dividends every **10 min** (10% value online / 1% offline, scaled by float² wear and rarity)
 - **Auto-sell**: optional threshold (shared with bulk sell); on **case opens**, credits are applied after the reel finishes; on **battle wins**, items taken from other players below the threshold are sold immediately
 - **Wear (float)**: each case drop gets a random float `0–1` and paint seed; grades FN / MW / FT / WW / BS (CS ranges). Catalog `marketValue` is the **Field-Tested** reference; instance `valueCents` scales by float within the wear band (FN up to +50%, MW +15–30%, FT mid ≈ catalog, WW down to −40%, BS lower)
 - **Feed Drop**: toggle in nav — live left column of latest case unboxes + MultiPlayers Battle winners
@@ -61,7 +61,7 @@ New registrations receive **100.00** starting credits and **100 osu** (`STARTING
 - Profile (username in nav): avatar, bio, password, stats, logout
 - **Presence**: online status (Socket.IO), total play time, last connection — shown on own and public profiles
 - **Achievements** (`/achievements`, also from profile): 10 starter badges unlocked by play (cases, battles, catalog, prestige, shop, playtime); earned badges appear on the profile
-- **Prestige**: pay **1 000 000 000 000.00** cr to reset; earn **Pr** (1000 base + ~1000 per **100 000 000 000.00** cr excess); spend Pr on a skill tree (chance / sell gain / key progress)
+- **Prestige**: pay **1 000 000 000 000.00** cr to reset; earn **Pr** (1000 base + ~1000 per **100 000 000 000.00** cr excess); spend Pr on a skill tree (Fortune, Yield, Polish, Bulk, Discount, Quality, noTime, Refund, Respin, Vault Capacity, Offline/Online Yield)
 - **Leaderboard**: richest players (balance + inventory value); click a row to open a public **player profile** (`/player/:username`) with stats and inventory
 - Admin: overview dashboard, players (credit adjust), cases / items / drops (split pages, search filters)
 
@@ -115,10 +115,10 @@ Typical **prod → local** flow: `docker-db-export.sh` on the server → `scp` t
 ## Notes
 
 - Balances and prices are integers in **cents**; **osu** is a separate demo currency for the shop
-- Catalog item price = Field-Tested reference; each inventory row stores `floatValue`, `wear`, `paintSeed`, `valueCents`, `favorite`
+- Catalog item price = Field-Tested reference; each inventory row stores `floatValue`, `wear`, `paintSeed`, `valueCents`, `favorite`, optional vault `staked` / `stakedAt` / `lastYieldAt`
 - Per-user auto-sell settings: `autoSellEnabled`, `autoSellThresholdCents` (default threshold **10.00** cr)
 - Case key progress stored in `CaseKeyProgress` (per user + case); backfill: `npm run db:backfill-case-keys --prefix server`
-- Inventory items locked while deposited in a bet; unlocked or transferred on resolve
+- Inventory items locked while deposited in a bet; unlocked or transferred on resolve; staked vault items cannot be sold, auto-sold, or bet
 - Avatars / uploads under `server/uploads/` (volume in Docker)
 - Real-time via Socket.IO; Docker Hub image name is lowercase: `foufure/casegambling`
 - Max **10** simultaneous browser windows/tabs per account (Socket.IO); override with `MAX_SOCKETS_PER_USER`

client/src/admin/AdminDrops.jsx

@@ -37,10 +37,12 @@ export default function AdminDrops() {
     [cases, selectedCaseId]
   );
 
-  const percents = useMemo(
+  const poolItems = useMemo(() => {
-    () => (selected ? dropPercents(selected.items) : []),
+    if (!selected) return [];
-    [selected]
+    return [...selected.items].sort((a, b) => Number(a.dropRate) - Number(b.dropRate));
-  );
+  }, [selected]);
+
+  const percents = useMemo(() => dropPercents(poolItems), [poolItems]);
 
   return (
     <div>
@@ -116,12 +118,12 @@ export default function AdminDrops() {
           </div>
 
           <div className="admin-block">
-            <h3>Pool ({selected.items.length})</h3>
+            <h3>Pool ({poolItems.length})</h3>
-            {selected.items.length === 0 ? (
+            {poolItems.length === 0 ? (
               <div className="muted">No drops yet.</div>
             ) : (
               <div className="drop-list">
-                {selected.items.map((ci, idx) => (
+                {poolItems.map((ci, idx) => (
                   <div key={ci.id} className="drop-row">
                     <span className="drop-item-cell">
                       {ci.item.imageUrl ? (

client/src/api.js

@@ -46,6 +46,17 @@ export const api = {
       body: JSON.stringify({ count }),
     }),
   inventory: () => request('/api/inventory'),
+  vaultStake: (inventoryItemIds) =>
+    request('/api/vault/stake', {
+      method: 'POST',
+      body: JSON.stringify({ inventoryItemIds }),
+    }),
+  vaultUnstake: (inventoryItemIds) =>
+    request('/api/vault/unstake', {
+      method: 'POST',
+      body: JSON.stringify({ inventoryItemIds }),
+    }),
+  vaultClaim: () => request('/api/vault/claim', { method: 'POST' }),
   sellInventory: (inventoryItemIds) =>
     request('/api/inventory/sell', {
       method: 'POST',
@@ -174,8 +185,13 @@ export const api = {
   },
 };
 
-export function formatCredits(cents) {
+/**
-  const fixed = (Number(cents) / 100).toFixed(2);
+ * Exact credit display (cents → "1 234.56"), for tooltips / confirmations.
+ */
+export function formatCreditsExact(cents) {
+  const n = Number(cents);
+  if (!Number.isFinite(n)) return '0.00';
+  const fixed = (n / 100).toFixed(2);
   const neg = fixed.startsWith('-');
   const body = neg ? fixed.slice(1) : fixed;
   const [intPart, dec] = body.split('.');
@@ -183,6 +199,53 @@ export function formatCredits(cents) {
   return `${neg ? '-' : ''}${grouped}.${dec}`;
 }
 
+/** Alphabet suffixes after T: aa, ab, … az, ba, … (each step ×1000). */
+function alphabetSuffix(index) {
+  let num = Math.max(0, Math.floor(index));
+  let result = '';
+  do {
+    result = String.fromCharCode(97 + (num % 26)) + result;
+    num = Math.floor(num / 26);
+  } while (num > 0);
+  while (result.length < 2) result = `a${result}`;
+  return result;
+}
+
+function tierSuffix(tier) {
+  if (tier <= 0) return '';
+  if (tier === 1) return 'K';
+  if (tier === 2) return 'M';
+  if (tier === 3) return 'B';
+  if (tier === 4) return 'T';
+  return alphabetSuffix(tier - 5);
+}
+
+/**
+ * Compact credit display for UI readability.
+ * K / M / B / T, then aa, ab, … (×1000 each). Input is cents.
+ */
+export function formatCredits(cents) {
+  const n = Number(cents);
+  if (!Number.isFinite(n)) return '0.00';
+  const neg = n < 0;
+  const credits = Math.abs(n) / 100;
+
+  if (credits < 1000) {
+    return `${neg ? '-' : ''}${credits.toFixed(2)}`;
+  }
+
+  let tier = 0;
+  let scaled = credits;
+  while (scaled >= 1000 && tier < 1000) {
+    scaled /= 1000;
+    tier += 1;
+  }
+
+  const suffix = tierSuffix(tier);
+  const shown = String(Number(scaled.toFixed(2)));
+  return `${neg ? '-' : ''}${shown}${suffix}`;
+}
+
 export function formatChance(pct) {
   return `${Number(pct || 0).toFixed(1)}%`;
 }

client/src/components/CaseReel.jsx

@@ -3,10 +3,15 @@ import { rarityColor } from '../rarities';
 
 const ITEM_WIDTH = 120;
 const ITEM_WIDTH_COMPACT = 72;
-const SPIN_DURATION_MS = 5500;
+const BASE_SPIN_DURATION_MS = 5500;
 const SPIN_SLOTS = 42;
 const TAIL_SLOTS = 8;
 
+export function spinDurationMs(animReduction = 0) {
+  const pct = Math.max(0, Math.min(90, Number(animReduction) || 0));
+  return Math.max(1000, Math.round(BASE_SPIN_DURATION_MS * (1 - pct / 100)));
+}
+
 function pickRandom(items, avoidId) {
   if (!items.length) return null;
   if (items.length === 1) return items[0];
@@ -78,6 +83,7 @@ export default function CaseReel({
   onDone,
   showOwners = false,
   compact = false,
+  animReduction = 0,
 }) {
   const trackRef = useRef(null);
   const [offset, setOffset] = useState(0);
@@ -85,6 +91,7 @@ export default function CaseReel({
   const onDoneRef = useRef(onDone);
   onDoneRef.current = onDone;
   const itemWidth = compact ? ITEM_WIDTH_COMPACT : ITEM_WIDTH;
+  const durationMs = spinDurationMs(animReduction);
 
   const spinKey =
     winnerId && items?.length ? `${winnerId}:${items.map((i) => i.id).join(',')}` : '';
@@ -122,7 +129,7 @@ export default function CaseReel({
       if (finished) return;
       finished = true;
       onDoneRef.current?.();
-    }, SPIN_DURATION_MS + 80);
+    }, durationMs + 80);
 
     return () => {
       cancelAnimationFrame(id);
@@ -131,7 +138,7 @@ export default function CaseReel({
     };
     // intentionally only re-run when a new spin starts
     // eslint-disable-next-line react-hooks/exhaustive-deps
-  }, [spinning, winnerId, itemWidth]);
+  }, [spinning, winnerId, itemWidth, durationMs]);
 
   return (
     <div
@@ -144,7 +151,7 @@ export default function CaseReel({
         style={{
           transform: `translateX(-${offset}px)`,
           transition: spinning
-            ? `transform ${SPIN_DURATION_MS}ms cubic-bezier(0.12, 0.75, 0.12, 1)`
+            ? `transform ${durationMs}ms cubic-bezier(0.12, 0.75, 0.12, 1)`
             : 'none',
         }}
       >

client/src/components/ItemTile.jsx

@@ -1,4 +1,4 @@
-import { formatCredits } from '../api';
+import { formatCredits, formatCreditsExact } from '../api';
 import { rarityColor } from '../rarities';
 
 /** Instance sell/bet price, else catalog FT reference */
@@ -22,6 +22,7 @@ export default function ItemTile({
   showWear = true,
   selected = false,
   favorite = false,
+  staked = false,
   onClick,
   disabled = false,
 }) {
@@ -37,16 +38,23 @@ export default function ItemTile({
         }`
       : wear || undefined;
 
+  const titleParts = [];
+  if (staked) titleParts.push('Vault');
+  if (favorite) titleParts.push('Favorite');
+  if (floatTitle) titleParts.push(floatTitle);
+  else titleParts.push(item.name);
+  if (showValue) titleParts.push(`${formatCreditsExact(value)} cr`);
+
   return (
     <div
       className={`item-tile${selected ? ' selected' : ''}${favorite ? ' favorite' : ''}${
-        clickable ? ' selectable' : ''
+        staked ? ' staked' : ''
-      }${disabled ? ' disabled' : ''}`}
+      }${clickable ? ' selectable' : ''}${disabled ? ' disabled' : ''}`}
       style={{ borderTopColor: color }}
       onClick={disabled ? undefined : onClick}
       role={clickable ? 'button' : undefined}
       tabIndex={clickable && !disabled ? 0 : undefined}
-      title={favorite ? `Favorite · ${floatTitle || item.name}` : floatTitle}
+      title={titleParts.join(' · ')}
       onKeyDown={
         clickable && !disabled
           ? (e) => {
@@ -60,6 +68,7 @@ export default function ItemTile({
     >
       <div className={`item-visual${hasImage ? ' has-img' : ''}`} style={{ color }}>
         {favorite ? <span className="item-favorite-badge" aria-label="Favorite">★</span> : null}
+        {staked ? <span className="item-vault-badge" aria-label="Vault">V</span> : null}
         {hasImage ? (
           <img src={item.imageUrl} alt="" loading="lazy" />
         ) : (
@@ -76,7 +85,9 @@ export default function ItemTile({
         </div>
       ) : null}
       {showValue && (
-        <div className="item-meta">{formatCredits(value)} cr</div>
+        <div className="item-meta" title={`${formatCreditsExact(value)} cr`}>
+          {formatCredits(value)} cr
+        </div>
       )}
     </div>
   );

client/src/components/Layout.jsx

@@ -1,7 +1,7 @@
 import { useEffect, useState } from 'react';
 import { NavLink, Outlet, useLocation } from 'react-router-dom';
 import { useAuth } from '../AuthContext';
-import { api, formatCredits } from '../api';
+import { api, formatCredits, formatCreditsExact } from '../api';
 import DropFeed from './DropFeed';
 import SessionLimitOverlay from './SessionLimitOverlay';
 import { onInventoryChanged } from '../inventoryEvents';
@@ -213,11 +213,20 @@ export default function Layout() {
           {user?.role === 'admin' && <NavLink to="/admin">Admin</NavLink>}
           {user && (
             isPlayer ? (
-              <NavLink to="/shop" className="balance-pill balance-pill-link">
+              <NavLink
+                to="/shop"
+                className="balance-pill balance-pill-link"
+                title={`${formatCreditsExact(user.balance)} cr`}
+              >
                 {formatCredits(user.balance)} cr
               </NavLink>
             ) : (
-              <span className="balance-pill">{formatCredits(user.balance)} cr</span>
+              <span
+                className="balance-pill"
+                title={`${formatCreditsExact(user.balance)} cr`}
+              >
+                {formatCredits(user.balance)} cr
+              </span>
             )
           )}
           {user ? (

client/src/components/ProfilePrestigeStats.jsx

@@ -1,8 +1,54 @@
-import { formatCredits } from '../api';
-
 export default function ProfilePrestigeStats({ prestige }) {
   if (!prestige || !prestige.count) return null;
 
+  const rows = [
+    typeof prestige.prBalance === 'number' && prestige.prBalance > 0
+      ? { label: 'Pr', value: <strong>{prestige.prBalance}</strong> }
+      : null,
+    { label: 'Fortune', value: <strong>+{prestige.chanceBonus}%</strong> },
+    { label: 'Yield', value: <strong>+{prestige.gainBonus}%</strong> },
+    (prestige.wearBonus || 0) > 0 && {
+      label: 'Polish',
+      value: <strong>+{prestige.wearBonus}</strong>,
+    },
+    (prestige.openBonus || 0) > 0 && {
+      label: 'Bulk',
+      value: <strong>+{prestige.openBonus} opens</strong>,
+    },
+    (prestige.caseDiscount || 0) > 0 && {
+      label: 'Discount',
+      value: <strong>−{prestige.caseDiscount}%</strong>,
+    },
+    (prestige.qualityBonus || 0) > 0 && {
+      label: 'Quality',
+      value: <strong>+{prestige.qualityBonus}</strong>,
+    },
+    (prestige.animReduction || 0) > 0 && {
+      label: 'noTime',
+      value: <strong>−{prestige.animReduction}%</strong>,
+    },
+    (prestige.refundChance || 0) > 0 && {
+      label: 'Refund',
+      value: <strong>{prestige.refundChance}%</strong>,
+    },
+    (prestige.respinChance || 0) > 0 && {
+      label: 'Respin',
+      value: <strong>{prestige.respinChance}%</strong>,
+    },
+    (prestige.vaultSlots || 0) > 0 && {
+      label: 'Vault Capacity',
+      value: <strong>+{prestige.vaultSlots}</strong>,
+    },
+    (prestige.offlineYield || 0) > 0 && {
+      label: 'Offline Yield',
+      value: <strong>+{prestige.offlineYield}%</strong>,
+    },
+    (prestige.onlineYield || 0) > 0 && {
+      label: 'Online Yield',
+      value: <strong>+{prestige.onlineYield}%</strong>,
+    },
+  ].filter(Boolean);
+
   return (
     <div className="prestige-profile-block">
       <div className="catalog-badges-head">
@@ -10,65 +56,11 @@ export default function ProfilePrestigeStats({ prestige }) {
         <span className="catalog-badges-luck">×{prestige.count}</span>
       </div>
       <ul className="stat-list prestige-profile-stats">
-        {typeof prestige.prBalance === 'number' && prestige.prBalance > 0 && (
+        {rows.map((row) => (
-          <li>
+          <li key={row.label}>
-            Pr <strong>{prestige.prBalance}</strong>
+            {row.label} {row.value}
           </li>
-        )}
+        ))}
-        <li>
-          Chance <strong>+{prestige.chanceBonus}%</strong>
-        </li>
-        <li>
-          Sell gains <strong>+{prestige.gainBonus}%</strong>
-        </li>
-        <li>
-          Key opens <strong>−{prestige.keyOpenReduction}</strong>
-        </li>
-        {(prestige.startBonus || 0) > 0 && (
-          <li>
-            Vault <strong>{formatCredits(prestige.startBonus)} cr</strong>
-          </li>
-        )}
-        {(prestige.adBonus || 0) > 0 && (
-          <li>
-            Ad reward <strong>+{prestige.adBonus}%</strong>
-          </li>
-        )}
-        {(prestige.adCooldownReduction || 0) > 0 && (
-          <li>
-            Ad cooldown <strong>−{prestige.adCooldownReduction}s</strong>
-          </li>
-        )}
-        {(prestige.wearBonus || 0) > 0 && (
-          <li>
-            Polish <strong>+{prestige.wearBonus}</strong>
-          </li>
-        )}
-        {(prestige.prBonus || 0) > 0 && (
-          <li>
-            Pr echo <strong>+{prestige.prBonus}%</strong>
-          </li>
-        )}
-        {(prestige.shopDiscount || 0) > 0 && (
-          <li>
-            Haggle <strong>−{prestige.shopDiscount} osu</strong>
-          </li>
-        )}
-        {(prestige.startOsu || 0) > 0 && (
-          <li>
-            Purse <strong>+{prestige.startOsu} osu</strong>
-          </li>
-        )}
-        {(prestige.dropValueBonus || 0) > 0 && (
-          <li>
-            Magnet <strong>+{prestige.dropValueBonus}%</strong>
-          </li>
-        )}
-        {(prestige.openBonus || 0) > 0 && (
-          <li>
-            Bulk <strong>+{prestige.openBonus} opens</strong>
-          </li>
-        )}
       </ul>
     </div>
   );

client/src/index.css

@@ -1841,6 +1841,48 @@ a.balance-pill-link.active {
   pointer-events: none;
 }
 
+.item-vault-badge {
+  position: absolute;
+  top: 0.35rem;
+  left: 0.35rem;
+  z-index: 1;
+  width: 1.15rem;
+  height: 1.15rem;
+  display: grid;
+  place-items: center;
+  border-radius: 0.2rem;
+  background: rgba(80, 160, 220, 0.35);
+  color: #9fd4ff;
+  font-size: 0.7rem;
+  font-weight: 700;
+  line-height: 1;
+  pointer-events: none;
+}
+
+.item-tile.staked {
+  box-shadow: inset 0 0 0 1px rgba(80, 160, 220, 0.4);
+}
+
+.vault-panel {
+  margin: 1.25rem 0 1.5rem;
+}
+
+.vault-panel .section-head {
+  margin-bottom: 0.75rem;
+}
+
+.vault-stats {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 1rem 1.5rem;
+  margin-bottom: 0.85rem;
+  font-size: 0.92rem;
+}
+
+.vault-grid {
+  margin-bottom: 0.5rem;
+}
+
 .item-tile.disabled {
   opacity: 0.4;
   pointer-events: none;

client/src/pages/CasePage.jsx

@@ -27,6 +27,8 @@ export default function CasePage() {
   const [error, setError] = useState('');
   const [keyMessage, setKeyMessage] = useState('');
   const [catalogMessage, setCatalogMessage] = useState('');
+  const [openBonusMessage, setOpenBonusMessage] = useState('');
+  const [animReduction, setAnimReduction] = useState(0);
   const [quantity, setQuantity] = useState(1);
   const [opening, setOpening] = useState(false);
   const [spins, setSpins] = useState([]);
@@ -243,6 +245,7 @@ export default function CasePage() {
     setError('');
     setKeyMessage('');
     setCatalogMessage('');
+    setOpenBonusMessage('');
     setSpins([]);
     setOpening(true);
     announcedRef.current = false;
@@ -253,6 +256,13 @@ export default function CasePage() {
       updateBalance(result.user.balance);
       notifyInventoryChanged();
       persistQty(crate.id, quantity);
+      if (result.animReduction != null) {
+        setAnimReduction(result.animReduction);
+      }
+      const bonusParts = [];
+      if (result.refunded) bonusParts.push('Refund! Case cost returned');
+      if (result.respin) bonusParts.push('Respin! All drops re-rolled');
+      if (bonusParts.length) setOpenBonusMessage(bonusParts.join(' · '));
       if (result.keyProgress) {
         setCrate((prev) => (prev ? { ...prev, keyProgress: result.keyProgress } : prev));
       }
@@ -352,14 +362,18 @@ export default function CasePage() {
       {error && <div className="error">{error}</div>}
       {keyMessage && <div className="ok-msg">{keyMessage}</div>}
       {catalogMessage && <div className="ok-msg">{catalogMessage}</div>}
+      {openBonusMessage && <div className="ok-msg">{openBonusMessage}</div>}
 
       {crate && (
         <>
           <div className="case-hero">
             <h1>{crate.name}</h1>
             <p className="muted">
-              Cost {formatCredits(crate.price)} cr each · Balance{' '}
+              Cost {formatCredits(crate.price)} cr each
-              {formatCredits(user.balance)} cr
+              {crate.basePrice != null && Number(crate.basePrice) !== Number(crate.price)
+                ? ` (was ${formatCredits(crate.basePrice)})`
+                : ''}{' '}
+              · Balance {formatCredits(user.balance)} cr
               {crate.catalogLuckPercent > 0
                 ? ` · Catalog luck +${crate.catalogLuckPercent}%`
                 : ''}
@@ -435,6 +449,7 @@ export default function CasePage() {
                     winnerId={spin.item.id}
                     spinning={spin.spinning}
                     onDone={() => onReelDone(spin.key)}
+                    animReduction={animReduction}
                   />
                   {spin.done && (
                     <div

client/src/pages/Dashboard.jsx

@@ -11,6 +11,8 @@ const PAGE_SIZE = 50;
 export default function Dashboard() {
   const { user, loading, patchUser } = useAuth();
   const [inventory, setInventory] = useState([]);
+  const [vault, setVault] = useState(null);
+  const [vaultMessage, setVaultMessage] = useState('');
   const [error, setError] = useState('');
   const [sort, setSort] = useState('value');
   const [page, setPage] = useState(1);
@@ -37,6 +39,7 @@ export default function Dashboard() {
   const load = async () => {
     const inv = await api.inventory();
     setInventory(inv.inventory);
+    setVault(inv.vault || null);
   };
 
   useEffect(() => {
@@ -109,6 +112,7 @@ export default function Dashboard() {
     return inventory.filter(
       (inv) =>
         !inv.favorite &&
+        !inv.staked &&
         (inv.valueCents ?? inv.item?.valueCents ?? 0) < thresholdCents
     );
   }, [inventory, thresholdCents]);
@@ -118,10 +122,17 @@ export default function Dashboard() {
     [inventory, selected]
   );
 
+  const stakedItems = useMemo(() => inventory.filter((inv) => inv.staked), [inventory]);
+
   const selectedHasFavorite = selectedItems.some((inv) => inv.favorite);
   const selectedAllFavorite =
     selectedItems.length > 0 && selectedItems.every((inv) => inv.favorite);
-  const selectedCanSell = selectedItems.some((inv) => !inv.favorite);
+  const selectedCanSell = selectedItems.some((inv) => !inv.favorite && !inv.staked);
+  const selectedStaked = selectedItems.filter((inv) => inv.staked);
+  const selectedUnstaked = selectedItems.filter((inv) => !inv.staked);
+  const vaultFree = Math.max(0, (vault?.slots ?? 3) - (vault?.used ?? 0));
+  const canStake = selectedUnstaked.length > 0 && selectedUnstaked.length <= vaultFree;
+  const canUnstake = selectedStaked.length > 0;
 
   const belowValue = useMemo(
     () =>
@@ -155,11 +166,78 @@ export default function Dashboard() {
   };
 
   const sell = async () => {
-    const ids = selectedItems.filter((inv) => !inv.favorite).map((inv) => inv.id);
+    const ids = selectedItems
+      .filter((inv) => !inv.favorite && !inv.staked)
+      .map((inv) => inv.id);
     if (!ids.length) return;
     await sellIds(ids);
   };
 
+  const stakeSelected = async () => {
+    const ids = selectedUnstaked.map((inv) => inv.id);
+    if (!ids.length) return;
+    setBusy(true);
+    setError('');
+    setVaultMessage('');
+    try {
+      const data = await api.vaultStake(ids);
+      if (data.user) patchUser({ balance: data.user.balance });
+      setSelected([]);
+      setVaultMessage(`Staked ${ids.length} item${ids.length === 1 ? '' : 's'} in vault`);
+      await load();
+    } catch (err) {
+      setError(err.message);
+    } finally {
+      setBusy(false);
+    }
+  };
+
+  const unstakeSelected = async () => {
+    const ids = selectedStaked.map((inv) => inv.id);
+    if (!ids.length) return;
+    setBusy(true);
+    setError('');
+    setVaultMessage('');
+    try {
+      const data = await api.vaultUnstake(ids);
+      if (data.user) patchUser({ balance: data.user.balance });
+      setSelected([]);
+      const yieldPart =
+        data.yieldCredited > 0
+          ? ` · +${formatCredits(data.yieldCredited)} cr yield`
+          : '';
+      setVaultMessage(
+        `Unstaked ${ids.length} item${ids.length === 1 ? '' : 's'}${yieldPart}`
+      );
+      await load();
+    } catch (err) {
+      setError(err.message);
+    } finally {
+      setBusy(false);
+    }
+  };
+
+  const claimVault = async () => {
+    setBusy(true);
+    setError('');
+    setVaultMessage('');
+    try {
+      const data = await api.vaultClaim();
+      if (data.user) patchUser({ balance: data.user.balance });
+      if (data.vault) setVault(data.vault);
+      setVaultMessage(
+        data.credited > 0
+          ? `Vault yield +${formatCredits(data.credited)} cr`
+          : 'No vault yield ready yet'
+      );
+      await load();
+    } catch (err) {
+      setError(err.message);
+    } finally {
+      setBusy(false);
+    }
+  };
+
   const setFavorite = async (favorite) => {
     if (!selected.length) return;
     setBusy(true);
@@ -303,10 +381,34 @@ export default function Dashboard() {
                   className="btn"
                   onClick={sell}
                   disabled={busy || !selectedCanSell}
-                  title={selectedHasFavorite ? 'Favorites cannot be sold' : undefined}
+                  title={
+                    selectedHasFavorite || selectedStaked.length
+                      ? 'Favorites and vault items cannot be sold'
+                      : undefined
+                  }
                 >
                   Sell
                 </button>
+                {canStake && (
+                  <button
+                    type="button"
+                    className="btn secondary"
+                    onClick={stakeSelected}
+                    disabled={busy}
+                  >
+                    Stake ({selectedUnstaked.length})
+                  </button>
+                )}
+                {canUnstake && (
+                  <button
+                    type="button"
+                    className="btn secondary"
+                    onClick={unstakeSelected}
+                    disabled={busy}
+                  >
+                    Unstake ({selectedStaked.length})
+                  </button>
+                )}
               </>
             )}
           </div>
@@ -381,6 +483,57 @@ export default function Dashboard() {
         </div>
 
         {error && <div className="error">{error}</div>}
+        {vaultMessage && <div className="ok-msg">{vaultMessage}</div>}
+
+        <div className="vault-panel admin-block">
+          <div className="section-head">
+            <div>
+              <h2>Vault</h2>
+              <p className="muted">
+                Stake up to {vault?.slots ?? 3} items. Online: 10% / 10 min · Offline: 1% / 10 min
+                (scales with wear &amp; rarity).
+              </p>
+            </div>
+            <button
+              type="button"
+              className="btn secondary"
+              onClick={claimVault}
+              disabled={busy || !(vault?.used > 0)}
+            >
+              Claim yield
+            </button>
+          </div>
+          <div className="vault-stats">
+            <span>
+              Slots <strong>{vault?.used ?? 0}/{vault?.slots ?? 3}</strong>
+            </span>
+            <span>
+              Online / tick{' '}
+              <strong className="gold">{formatCredits(vault?.onlinePerTick ?? 0)} cr</strong>
+            </span>
+            <span>
+              Offline / tick{' '}
+              <strong>{formatCredits(vault?.offlinePerTick ?? 0)} cr</strong>
+            </span>
+          </div>
+          {stakedItems.length > 0 ? (
+            <div className="grid vault-grid">
+              {stakedItems.map((inv) => (
+                <ItemTile
+                  key={`vault-${inv.id}`}
+                  item={inv.item}
+                  favorite={inv.favorite}
+                  staked
+                  selected={selected.includes(inv.id)}
+                  onClick={() => toggle(inv.id)}
+                />
+              ))}
+            </div>
+          ) : (
+            <p className="muted">No items staked — select items below and Stake.</p>
+          )}
+        </div>
+
         {inventory.length === 0 ? (
           <div className="empty">
             Empty for now —{' '}
@@ -397,6 +550,7 @@ export default function Dashboard() {
                   key={inv.id}
                   item={inv.item}
                   favorite={inv.favorite}
+                  staked={inv.staked}
                   selected={selected.includes(inv.id)}
                   onClick={() => toggle(inv.id)}
                 />

client/src/pages/PrestigePage.jsx

@@ -162,53 +162,53 @@ export default function PrestigePage() {
       {p && (
         <div className="prestige-totals prestige-totals-wide">
           <div>
-            <span className="muted">Chance</span>
+            <span className="muted">Fortune</span>
             <strong>+{p.chanceBonus}%</strong>
           </div>
           <div>
-            <span className="muted">Gains</span>
+            <span className="muted">Yield</span>
             <strong>+{p.gainBonus}%</strong>
           </div>
-          <div>
-            <span className="muted">Key opens</span>
-            <strong>−{p.keyOpenReduction}</strong>
-          </div>
-          <div>
-            <span className="muted">Vault</span>
-            <strong>{formatCredits(p.startBonus || 0)} cr</strong>
-          </div>
-          <div>
-            <span className="muted">Ad reward</span>
-            <strong>+{p.adBonus || 0}%</strong>
-          </div>
-          <div>
-            <span className="muted">Ad cooldown</span>
-            <strong>−{p.adCooldownReduction || 0}s</strong>
-          </div>
           <div>
             <span className="muted">Polish</span>
             <strong>+{p.wearBonus || 0}</strong>
           </div>
-          <div>
-            <span className="muted">Pr echo</span>
-            <strong>+{p.prBonus || 0}%</strong>
-          </div>
-          <div>
-            <span className="muted">Haggle</span>
-            <strong>−{p.shopDiscount || 0} osu</strong>
-          </div>
-          <div>
-            <span className="muted">Purse</span>
-            <strong>+{p.startOsu || 0} osu</strong>
-          </div>
-          <div>
-            <span className="muted">Magnet</span>
-            <strong>+{p.dropValueBonus || 0}%</strong>
-          </div>
           <div>
             <span className="muted">Bulk</span>
             <strong>+{p.openBonus || 0}</strong>
           </div>
+          <div>
+            <span className="muted">Discount</span>
+            <strong>−{p.caseDiscount || 0}%</strong>
+          </div>
+          <div>
+            <span className="muted">Quality</span>
+            <strong>+{p.qualityBonus || 0}</strong>
+          </div>
+          <div>
+            <span className="muted">noTime</span>
+            <strong>−{p.animReduction || 0}%</strong>
+          </div>
+          <div>
+            <span className="muted">Refund</span>
+            <strong>{p.refundChance || 0}%</strong>
+          </div>
+          <div>
+            <span className="muted">Respin</span>
+            <strong>{p.respinChance || 0}%</strong>
+          </div>
+          <div>
+            <span className="muted">Vault slots</span>
+            <strong>+{p.vaultSlots || 0}</strong>
+          </div>
+          <div>
+            <span className="muted">Offline Yield</span>
+            <strong>+{p.offlineYield || 0}%</strong>
+          </div>
+          <div>
+            <span className="muted">Online Yield</span>
+            <strong>+{p.onlineYield || 0}%</strong>
+          </div>
         </div>
       )}
 
@@ -256,8 +256,8 @@ export default function PrestigePage() {
           <div>
             <h3>You lose</h3>
             <ul>
-              <li>Balance (minus Vault / Purse)</li>
+              <li>Balance</li>
-              <li>Inventory</li>
+              <li>Inventory &amp; vault stakes</li>
               <li>Case keys &amp; catalog progress</li>
             </ul>
           </div>

server/prisma/schema.prisma

@@ -33,6 +33,14 @@ model User {
   prestigeStartOsu         Int    @default(0)
   prestigeDropValueBonus   Int    @default(0)
   prestigeOpenBonus        Int    @default(0)
+  prestigeCaseDiscount     Int    @default(0)
+  prestigeQualityBonus     Int    @default(0)
+  prestigeAnimReduction    Int    @default(0)
+  prestigeRefundChance     Int    @default(0)
+  prestigeRespinChance     Int    @default(0)
+  prestigeVaultSlots       Int    @default(0)
+  prestigeOfflineYield     Int    @default(0)
+  prestigeOnlineYield      Int    @default(0)
   lastConnection DateTime?
   playTimeSeconds BigInt          @default(0)
   createdAt      DateTime         @default(now())
@@ -96,6 +104,9 @@ model InventoryItem {
   userId      Int
   itemId      Int
   locked      Boolean  @default(false)
+  staked      Boolean  @default(false)
+  stakedAt    DateTime?
+  lastYieldAt DateTime?
   floatValue  Float    @default(0.265)
   wear        String   @default("Field-Tested")
   paintSeed   Int      @default(0)

server/src/autoSell.js

@@ -22,7 +22,7 @@ export async function applyAutoSell(tx, user, inventoryItems) {
   let balanceDelta = 0;
 
   for (const inv of inventoryItems) {
-    if (!inv || inv.locked || inv.favorite || inv.valueCents >= threshold) continue;
+    if (!inv || inv.locked || inv.staked || inv.favorite || inv.valueCents >= threshold) continue;
 
     const payout = applyGainMultiplier(inv.valueCents, gainBonus);
 

server/src/index.js

@@ -20,6 +20,7 @@ import feedRoutes from './routes/feed.js';
 import catalogRoutes from './routes/catalog.js';
 import prestigeRoutes from './routes/prestige.js';
 import achievementsRoutes from './routes/achievements.js';
+import vaultRoutes from './routes/vault.js';
 import { setIO } from './realtime.js';
 import { getDropFeed } from './feed.js';
 import { ensureJackpotRound } from './services/jackpot.js';
@@ -28,7 +29,7 @@ import { getJackpotState } from './services/jackpot.js';
 import { ensureAdminFromEnv } from './ensureAdmin.js';
 import { ensureAchievements, checkAchievements } from './achievements.js';
 import { ensureCategories } from './categories.js';
-import { trackConnect, trackDisconnect } from './presence.js';
+import { trackConnect, trackDisconnect, settleOnlineVaultForConnected } from './presence.js';
 
 const __dirname = path.dirname(fileURLToPath(import.meta.url));
 const uploadsDir = path.join(__dirname, '../uploads');
@@ -114,6 +115,7 @@ app.use('/api/feed', feedRoutes);
 app.use('/api/catalog', catalogRoutes);
 app.use('/api/prestige', prestigeRoutes);
 app.use('/api/achievements', achievementsRoutes);
+app.use('/api/vault', vaultRoutes);
 
 app.use((err, _req, res, _next) => {
   console.error(err);
@@ -149,6 +151,7 @@ io.on('connection', async (socket) => {
       socket.emit('session:ok', {
         count: result.count,
         max: result.max,
+        vaultCredited: result.vaultCredited || 0,
       });
     } catch (err) {
       console.error('presence connect', err);
@@ -252,6 +255,12 @@ async function bootstrap() {
       await ensureJackpotRound();
       await recoverDuelSpins();
       startEmptyDuelRoomPurge();
+      // Online vault dividends: check every 60s for completed 10-min ticks
+      setInterval(() => {
+        settleOnlineVaultForConnected().catch((err) =>
+          console.error('vault online interval', err)
+        );
+      }, 60_000);
     } catch (err) {
       console.error('Failed to bootstrap game services', err);
     }

server/src/middleware.js

@@ -31,7 +31,16 @@ export function publicUser(user) {
     prestigeCount: user.prestigeCount ?? 0,
     prestigeChanceBonus: user.prestigeChanceBonus ?? 0,
     prestigeGainBonus: user.prestigeGainBonus ?? 0,
-    prestigeKeyOpenReduction: user.prestigeKeyOpenReduction ?? 0,
+    prestigeWearBonus: user.prestigeWearBonus ?? 0,
+    prestigeOpenBonus: user.prestigeOpenBonus ?? 0,
+    prestigeCaseDiscount: user.prestigeCaseDiscount ?? 0,
+    prestigeQualityBonus: user.prestigeQualityBonus ?? 0,
+    prestigeAnimReduction: user.prestigeAnimReduction ?? 0,
+    prestigeRefundChance: user.prestigeRefundChance ?? 0,
+    prestigeRespinChance: user.prestigeRespinChance ?? 0,
+    prestigeVaultSlots: user.prestigeVaultSlots ?? 0,
+    prestigeOfflineYield: user.prestigeOfflineYield ?? 0,
+    prestigeOnlineYield: user.prestigeOnlineYield ?? 0,
     lastConnection: user.lastConnection || null,
     playTimeSeconds: Number(user.playTimeSeconds ?? 0),
   };

server/src/presence.js

@@ -1,11 +1,12 @@
 import { prisma } from './db.js';
+import { settleVaultYield } from './vault.js';
 
 export const MAX_SOCKETS_PER_USER = Math.max(
   1,
   Number(process.env.MAX_SOCKETS_PER_USER || 10)
 );
 
-/** @type {Map<number, { sockets: Set<string>, sessionStartedAt: number }>} */
+/** @type {Map<number, { sockets: Set<string>, sessionStartedAt: number, lastVaultCredit?: number }>} */
 const online = new Map();
 
 export function isConnected(userId) {
@@ -20,6 +21,10 @@ export function onlineUserCount() {
   return online.size;
 }
 
+export function onlineUserIds() {
+  return [...online.keys()];
+}
+
 export function totalSocketCount() {
   let n = 0;
   for (const entry of online.values()) {
@@ -32,7 +37,7 @@ export function totalSocketCount() {
  * Track an authenticated socket. Updates lastConnection on first socket for this user.
  * Rejects when the account already has MAX_SOCKETS_PER_USER live windows.
  * Slot claim is synchronous so concurrent connects cannot exceed the max.
- * @returns {Promise<{ ok: true, count: number, max: number } | { ok: false, count: number, max: number }>}
+ * @returns {Promise<{ ok: true, count: number, max: number, vaultCredited?: number } | { ok: false, count: number, max: number }>}
  */
 export async function trackConnect(userId, socketId) {
   const id = Number(userId);
@@ -58,6 +63,7 @@ export async function trackConnect(userId, socketId) {
   // Claim slot before any await (avoids race past the limit)
   entry.sockets.add(socketId);
   const isFirst = entry.sockets.size === 1;
+  let vaultCredited = 0;
 
   if (isFirst) {
     try {
@@ -68,9 +74,16 @@ export async function trackConnect(userId, socketId) {
     } catch (err) {
       console.error('presence lastConnection', err);
     }
+    // Offline yield accrued while disconnected
+    try {
+      const settled = await settleVaultYield(id, 'offline');
+      vaultCredited = settled.credited;
+    } catch (err) {
+      console.error('presence vault offline settle', err);
+    }
   }
 
-  return { ok: true, count: entry.sockets.size, max };
+  return { ok: true, count: entry.sockets.size, max, vaultCredited };
 }
 
 /**
@@ -88,6 +101,14 @@ export async function trackDisconnect(userId, socketId) {
 
   online.delete(id);
   const elapsed = Math.max(0, Math.floor((Date.now() - entry.sessionStartedAt) / 1000));
+
+  // Settle remaining online ticks before going offline
+  try {
+    await settleVaultYield(id, 'online');
+  } catch (err) {
+    console.error('presence vault online settle', err);
+  }
+
   if (elapsed <= 0) return;
 
   try {
@@ -118,3 +139,18 @@ export function serializePresence(user) {
     maxWindows: MAX_SOCKETS_PER_USER,
   };
 }
+
+/** Settle online vault yield for all currently connected users. */
+export async function settleOnlineVaultForConnected() {
+  const ids = onlineUserIds();
+  let total = 0;
+  for (const uid of ids) {
+    try {
+      const settled = await settleVaultYield(uid, 'online');
+      total += settled.credited;
+    } catch (err) {
+      console.error('vault online tick', uid, err);
+    }
+  }
+  return total;
+}

server/src/prestige.js

@@ -15,7 +15,6 @@ export const PR_EXCESS_CHUNK_CENTS = 10_000_000_000_000n;
 export const PR_PER_EXCESS_CHUNK = 1000;
 
 const BASE_AD_COOLDOWN_MS = 60_000;
-const MIN_AD_COOLDOWN_MS = 15_000;
 
 /**
  * Skill tree upgrades bought with Pr (stackable branches).
@@ -40,44 +39,6 @@ export const PRESTIGE_SKILLS = {
     unit: '%',
     branch: 'economy',
   },
-  key: {
-    id: 'key',
-    field: 'prestigeKeyOpenReduction',
-    delta: 10,
-    title: 'Keys',
-    description: '−10 opens required for next key (permanent)',
-    unit: '',
-    prefix: '−',
-    branch: 'drops',
-  },
-  vault: {
-    id: 'vault',
-    field: 'prestigeStartBonus',
-    delta: 10000,
-    title: 'Vault',
-    description: '+100.00 cr kept after each prestige reset',
-    unit: 'cr-cents',
-    branch: 'economy',
-  },
-  broadcast: {
-    id: 'broadcast',
-    field: 'prestigeAdBonus',
-    delta: 10,
-    title: 'Broadcast',
-    description: '+10% shop ad rewards (permanent)',
-    unit: '%',
-    branch: 'shop',
-  },
-  tempo: {
-    id: 'tempo',
-    field: 'prestigeAdCooldownReduction',
-    delta: 5,
-    title: 'Tempo',
-    description: '−5s shop ad cooldown (min 15s)',
-    unit: 's',
-    prefix: '−',
-    branch: 'shop',
-  },
   polish: {
     id: 'polish',
     field: 'prestigeWearBonus',
@@ -87,44 +48,6 @@ export const PRESTIGE_SKILLS = {
     unit: '',
     branch: 'drops',
   },
-  echo: {
-    id: 'echo',
-    field: 'prestigePrBonus',
-    delta: 5,
-    title: 'Echo',
-    description: '+5% Pr earned on prestige (permanent)',
-    unit: '%',
-    costMult: 1.25,
-    branch: 'meta',
-  },
-  haggle: {
-    id: 'haggle',
-    field: 'prestigeShopDiscount',
-    delta: 1,
-    title: 'Haggle',
-    description: '−1 osu on shop pack prices (min 1 osu)',
-    unit: ' osu',
-    prefix: '−',
-    branch: 'shop',
-  },
-  purse: {
-    id: 'purse',
-    field: 'prestigeStartOsu',
-    delta: 10,
-    title: 'Purse',
-    description: '+10 osu granted after each prestige reset',
-    unit: ' osu',
-    branch: 'economy',
-  },
-  magnet: {
-    id: 'magnet',
-    field: 'prestigeDropValueBonus',
-    delta: 2,
-    title: 'Magnet',
-    description: '+2% item value on case drops (permanent)',
-    unit: '%',
-    branch: 'drops',
-  },
   bulk: {
     id: 'bulk',
     field: 'prestigeOpenBonus',
@@ -134,6 +57,81 @@ export const PRESTIGE_SKILLS = {
     unit: '',
     branch: 'drops',
   },
+  discount: {
+    id: 'discount',
+    field: 'prestigeCaseDiscount',
+    delta: 2,
+    title: 'Discount',
+    description: '−2% case open price (permanent)',
+    unit: '%',
+    prefix: '−',
+    branch: 'economy',
+  },
+  quality: {
+    id: 'quality',
+    field: 'prestigeQualityBonus',
+    delta: 1,
+    title: 'Quality',
+    description: 'Better float / wear rolls on case opens (items below Field-Tested get upgraded)',
+    unit: '',
+    branch: 'drops',
+  },
+  noTime: {
+    id: 'noTime',
+    field: 'prestigeAnimReduction',
+    delta: 10,
+    title: 'noTime',
+    description: 'Reduced case opening animation time',
+    unit: '%',
+    prefix: '−',
+    branch: 'drops',
+  },
+  refund: {
+    id: 'refund',
+    field: 'prestigeRefundChance',
+    delta: 2,
+    title: 'Refund',
+    description: 'Chance to get a free case open refund',
+    unit: '%',
+    branch: 'drops',
+  },
+  respin: {
+    id: 'respin',
+    field: 'prestigeRespinChance',
+    delta: 1,
+    title: 'Respin',
+    description: 'Chance to get a free case respin (respins all cases if multi-opening)',
+    unit: '%',
+    branch: 'drops',
+  },
+  vaultCap: {
+    id: 'vaultCap',
+    field: 'prestigeVaultSlots',
+    delta: 1,
+    title: 'Vault Capacity',
+    description: '+1 max staking slot in the vault',
+    unit: '',
+    prefix: '+',
+    branch: 'vault',
+  },
+  offlineYield: {
+    id: 'offlineYield',
+    field: 'prestigeOfflineYield',
+    delta: 10,
+    title: 'Offline Yield',
+    description: 'Increased dividends for staked items while offline',
+    unit: '%',
+    branch: 'vault',
+  },
+  onlineYield: {
+    id: 'onlineYield',
+    field: 'prestigeOnlineYield',
+    delta: 10,
+    title: 'Online Yield',
+    description: 'Increased dividends for staked items while online',
+    unit: '%',
+    branch: 'vault',
+  },
 };
 
 /** Cost in Pr for the next purchase of a skill (level = current purchases). */
@@ -153,24 +151,23 @@ export function skillLevelFromUser(user, skillId) {
 }
 
 /**
- * Expected Pr (no RNG) for UI preview, including Echo bonus.
+ * Expected Pr (no RNG) for UI preview.
  */
-export function estimatePrReward(balanceCents, prBonusPct = 0) {
+export function estimatePrReward(balanceCents) {
   const balance = BigInt(balanceCents);
   const cost = PRESTIGE_COST_CENTS;
   if (balance < cost) return 0;
   const excess = balance - cost;
   const chunk = PR_EXCESS_CHUNK_CENTS;
   const exact = Number(excess) / Number(chunk);
-  const base = Math.round(PR_BASE_REWARD + exact * PR_PER_EXCESS_CHUNK);
+  return Math.round(PR_BASE_REWARD + exact * PR_PER_EXCESS_CHUNK);
-  return applyPrBonus(base, prBonusPct);
 }
 
 /**
  * Pr reward: 1000 base + 1000 per full 100B cr excess, plus a fractional
- * roll so partial chunks average to the remaining Pr. Then Echo %.
+ * roll so partial chunks average to the remaining Pr.
  */
-export function computePrReward(balanceCents, prBonusPct = 0) {
+export function computePrReward(balanceCents) {
   const balance = BigInt(balanceCents);
   const cost = PRESTIGE_COST_CENTS;
   const excess = balance > cost ? balance - cost : 0n;
@@ -181,26 +178,11 @@ export function computePrReward(balanceCents, prBonusPct = 0) {
   const bonus =
     full * PR_PER_EXCESS_CHUNK +
     (Math.random() < frac ? PR_PER_EXCESS_CHUNK : 0);
-  return applyPrBonus(PR_BASE_REWARD + bonus, prBonusPct);
+  return PR_BASE_REWARD + bonus;
 }
 
-export function applyPrBonus(basePr, prBonusPct = 0) {
+export function adCooldownMs(_user) {
-  const base = Math.max(0, Math.floor(Number(basePr) || 0));
+  return BASE_AD_COOLDOWN_MS;
-  const pct = Number(prBonusPct) || 0;
-  if (pct <= 0) return base;
-  return Math.floor(base * (1 + pct / 100));
-}
-
-export function adCooldownMs(user) {
-  const reductionSec = Math.max(0, Number(user?.prestigeAdCooldownReduction) || 0);
-  return Math.max(MIN_AD_COOLDOWN_MS, BASE_AD_COOLDOWN_MS - reductionSec * 1000);
-}
-
-export function applyAdRewardBonus(cents, adBonusPct = 0) {
-  const base = Math.max(0, Math.floor(Number(cents) || 0));
-  const pct = Number(adBonusPct) || 0;
-  if (pct <= 0) return base;
-  return Math.floor(base * (1 + pct / 100));
 }
 
 export function serializePrestige(user) {
@@ -208,16 +190,16 @@ export function serializePrestige(user) {
     count: user?.prestigeCount ?? 0,
     chanceBonus: user?.prestigeChanceBonus ?? 0,
     gainBonus: user?.prestigeGainBonus ?? 0,
-    keyOpenReduction: user?.prestigeKeyOpenReduction ?? 0,
-    startBonus: user?.prestigeStartBonus ?? 0,
-    adBonus: user?.prestigeAdBonus ?? 0,
-    adCooldownReduction: user?.prestigeAdCooldownReduction ?? 0,
     wearBonus: user?.prestigeWearBonus ?? 0,
-    prBonus: user?.prestigePrBonus ?? 0,
-    shopDiscount: user?.prestigeShopDiscount ?? 0,
-    startOsu: user?.prestigeStartOsu ?? 0,
-    dropValueBonus: user?.prestigeDropValueBonus ?? 0,
     openBonus: user?.prestigeOpenBonus ?? 0,
+    caseDiscount: user?.prestigeCaseDiscount ?? 0,
+    qualityBonus: user?.prestigeQualityBonus ?? 0,
+    animReduction: user?.prestigeAnimReduction ?? 0,
+    refundChance: user?.prestigeRefundChance ?? 0,
+    respinChance: user?.prestigeRespinChance ?? 0,
+    vaultSlots: user?.prestigeVaultSlots ?? 0,
+    offlineYield: user?.prestigeOfflineYield ?? 0,
+    onlineYield: user?.prestigeOnlineYield ?? 0,
     prBalance: user?.prBalance ?? 0,
     costCents: Number(PRESTIGE_COST_CENTS),
     visibleAtCents: PRESTIGE_VISIBLE_AT_CENTS,
@@ -249,17 +231,12 @@ export function serializeSkillTree(user) {
   });
 }
 
-export function shopOsuCost(baseCost, discount = 0) {
+/** Apply case price discount (%). Min 1 cent. */
-  const base = Math.max(1, Math.floor(Number(baseCost) || 0));
+export function applyCaseDiscount(priceCents, discountPct = 0) {
-  const off = Math.max(0, Math.floor(Number(discount) || 0));
+  const base = Math.max(0, Math.floor(Number(priceCents) || 0));
-  return Math.max(1, base - off);
+  const pct = Math.max(0, Number(discountPct) || 0);
-}
+  if (pct <= 0) return Math.max(1, base);
-
+  return Math.max(1, Math.floor(base * (1 - pct / 100)));
-export function applyDropValueBonus(cents, dropValueBonusPct = 0) {
-  const base = Math.max(1, Math.floor(Number(cents) || 0));
-  const pct = Number(dropValueBonusPct) || 0;
-  if (pct <= 0) return base;
-  return Math.max(1, Math.floor(base * (1 + pct / 100)));
 }
 
 /** Apply lifetime gain % to a credit amount (cents). */

server/src/routes/auth.js

@@ -96,7 +96,25 @@ router.post('/login', async (req, res) => {
       data: { lastConnection: new Date() },
     });
 
-    res.json({ user: publicUser(withConn) });
+    // Offline vault yield if user is not already socket-connected
+    let vaultCredited = 0;
+    try {
+      const { isConnected } = await import('../presence.js');
+      const { settleVaultYield } = await import('../vault.js');
+      if (!isConnected(user.id)) {
+        const settled = await settleVaultYield(user.id, 'offline');
+        vaultCredited = settled.credited;
+      }
+    } catch (err) {
+      console.error('login vault settle', err);
+    }
+
+    const refreshed =
+      vaultCredited > 0
+        ? await prisma.user.findUnique({ where: { id: user.id } })
+        : withConn;
+
+    res.json({ user: publicUser(refreshed), vaultCredited });
   } catch (err) {
     console.error(err);
     res.status(500).json({ error: 'Login failed' });

server/src/routes/cases.js

@@ -15,12 +15,12 @@ import {
   fillCatalogSlots,
   formatCaseItemsWithLuck,
 } from '../catalog.js';
-import { totalLuckPercent, applyDropValueBonus } from '../prestige.js';
+import { totalLuckPercent, applyCaseDiscount } from '../prestige.js';
 import { checkAchievements } from '../achievements.js';
 
 const router = Router();
 
-function formatCase(c, luckPercent = 0) {
+function formatCase(c, luckPercent = 0, unitPrice = null) {
   const items = (c.items || []).map((ci) => ({
     id: ci.item.id,
     name: ci.item.name,
@@ -34,7 +34,8 @@ function formatCase(c, luckPercent = 0) {
     id: c.id,
     name: c.name,
     imageUrl: c.imageUrl,
-    price: c.price,
+    price: unitPrice != null ? unitPrice : c.price,
+    basePrice: c.price,
     active: c.active,
     catalogLuckPercent: luckPercent,
     items: formatCaseItemsWithLuck(items, luckPercent),
@@ -43,7 +44,12 @@ function formatCase(c, luckPercent = 0) {
 
 async function loadUserLuckAndKeys(userId) {
   if (!userId) {
-    return { luckPercent: 0, keyOpenReduction: 0, openBonus: 0, dropValueBonus: 0, user: null };
+    return {
+      luckPercent: 0,
+      openBonus: 0,
+      caseDiscount: 0,
+      user: null,
+    };
   }
   const [catalogLuck, user] = await Promise.all([
     countCompletedChapters(prisma, userId),
@@ -51,18 +57,20 @@ async function loadUserLuckAndKeys(userId) {
       where: { id: userId },
       select: {
         prestigeChanceBonus: true,
-        prestigeKeyOpenReduction: true,
         prestigeWearBonus: true,
         prestigeOpenBonus: true,
-        prestigeDropValueBonus: true,
+        prestigeCaseDiscount: true,
+        prestigeQualityBonus: true,
+        prestigeAnimReduction: true,
+        prestigeRefundChance: true,
+        prestigeRespinChance: true,
       },
     }),
   ]);
   return {
     luckPercent: totalLuckPercent(catalogLuck, user?.prestigeChanceBonus),
-    keyOpenReduction: user?.prestigeKeyOpenReduction ?? 0,
     openBonus: user?.prestigeOpenBonus ?? 0,
-    dropValueBonus: user?.prestigeDropValueBonus ?? 0,
+    caseDiscount: user?.prestigeCaseDiscount ?? 0,
     user,
   };
 }
@@ -75,6 +83,17 @@ async function loadKeyProgressMap(userId) {
   return new Map(rows.map((r) => [r.caseId, r]));
 }
 
+function rollOneDrop(weighted, user) {
+  const winner = pickWeighted(weighted);
+  const item = winner.caseItem.item;
+  const rolled = rollInstanceValue(
+    item.marketValue,
+    user.prestigeWearBonus ?? 0,
+    user.prestigeQualityBonus ?? 0
+  );
+  return { item, rolled };
+}
+
 router.get('/', async (req, res) => {
   try {
     const userId = req.session?.userId;
@@ -86,16 +105,19 @@ router.get('/', async (req, res) => {
       orderBy: { price: 'asc' },
     });
     const progressMap = await loadKeyProgressMap(userId);
-    const { luckPercent, keyOpenReduction, openBonus } = await loadUserLuckAndKeys(userId);
+    const { luckPercent, openBonus, caseDiscount } = await loadUserLuckAndKeys(userId);
     res.json({
       catalogLuckPercent: luckPercent,
       cases: cases.map((c) => {
-        const formatted = formatCase(c, luckPercent);
+        const unitPrice = userId
+          ? applyCaseDiscount(c.price, caseDiscount)
+          : Number(c.price);
+        const formatted = formatCase(c, luckPercent, unitPrice);
         if (!userId) return formatted;
         const progress = progressMap.get(c.id);
         return {
           ...formatted,
-          keyProgress: serializeKeyProgress(progress, keyOpenReduction, openBonus),
+          keyProgress: serializeKeyProgress(progress, 0, openBonus),
         };
       }),
     });
@@ -118,13 +140,16 @@ router.get('/:id', async (req, res) => {
     if (!c || !c.active) {
       return res.status(404).json({ error: 'Case not found' });
     }
-    const { luckPercent, keyOpenReduction, openBonus } = await loadUserLuckAndKeys(userId);
+    const { luckPercent, openBonus, caseDiscount } = await loadUserLuckAndKeys(userId);
-    const formatted = formatCase(c, luckPercent);
+    const unitPrice = userId
+      ? applyCaseDiscount(c.price, caseDiscount)
+      : Number(c.price);
+    const formatted = formatCase(c, luckPercent, unitPrice);
     if (userId) {
       const progress = await prisma.caseKeyProgress.findUnique({
         where: { userId_caseId: { userId, caseId: id } },
       });
-      formatted.keyProgress = serializeKeyProgress(progress, keyOpenReduction, openBonus);
+      formatted.keyProgress = serializeKeyProgress(progress, 0, openBonus);
     }
     res.json({ case: formatted });
   } catch (err) {
@@ -169,7 +194,6 @@ router.post('/:id/open', requireAuth, async (req, res) => {
 
       const progressRow = await getOrCreateProgress(tx, userId, caseId);
       const openBonus = user.prestigeOpenBonus ?? 0;
-      const dropValueBonus = user.prestigeDropValueBonus ?? 0;
       const maxOpens = maxOpensForKeys(progressRow.keys, openBonus);
       if (count > maxOpens) {
         const err = new Error(`You can open at most ${maxOpens} at once for this case`);
@@ -177,7 +201,8 @@ router.post('/:id/open', requireAuth, async (req, res) => {
         throw err;
       }
 
-      const totalCost = c.price * count;
+      const unitPrice = applyCaseDiscount(c.price, user.prestigeCaseDiscount ?? 0);
+      const totalCost = unitPrice * count;
       if (user.balance < totalCost) {
         const err = new Error('Insufficient balance');
         err.status = 400;
@@ -185,7 +210,6 @@ router.post('/:id/open', requireAuth, async (req, res) => {
       }
 
       const catalogLuck = await countCompletedChapters(tx, userId);
-      const keyOpenReduction = user.prestigeKeyOpenReduction ?? 0;
       const luckPercent = totalLuckPercent(catalogLuck, user.prestigeChanceBonus);
       const weighted = applyCatalogLuck(
         c.items.map((ci) => ({
@@ -195,13 +219,11 @@ router.post('/:id/open', requireAuth, async (req, res) => {
         luckPercent
       );
 
+      async function createDrops(batchCount) {
         const drops = [];
-      for (let i = 0; i < count; i += 1) {
+        const createdTxIds = [];
-        const winner = pickWeighted(weighted);
+        for (let i = 0; i < batchCount; i += 1) {
-        const item = winner.caseItem.item;
+          const { item, rolled } = rollOneDrop(weighted, user);
-        const rolled = rollInstanceValue(item.marketValue, user.prestigeWearBonus ?? 0);
-        rolled.valueCents = applyDropValueBonus(rolled.valueCents, dropValueBonus);
-
           const inventoryItem = await tx.inventoryItem.create({
             data: {
               userId,
@@ -215,11 +237,11 @@ router.post('/:id/open', requireAuth, async (req, res) => {
 
           const willAutoSell = shouldAutoSell(user, rolled.valueCents);
 
-        await tx.transaction.create({
+          const openTx = await tx.transaction.create({
             data: {
               userId,
               type: 'open_case',
-            amount: -c.price,
+              amount: -unitPrice,
               meta: JSON.stringify({
                 caseId: c.id,
                 caseName: c.name,
@@ -232,10 +254,13 @@ router.post('/:id/open', requireAuth, async (req, res) => {
                 valueCents: rolled.valueCents,
                 willAutoSell,
                 openIndex: i,
-              openCount: count,
+                openCount: batchCount,
+                unitPrice,
+                basePrice: Number(c.price),
               }),
             },
           });
+          createdTxIds.push(openTx.id);
 
           drops.push({
             inventoryId: inventoryItem.id,
@@ -251,6 +276,38 @@ router.post('/:id/open', requireAuth, async (req, res) => {
             willAutoSell,
           });
         }
+        return { drops, createdTxIds };
+      }
+
+      let { drops, createdTxIds } = await createDrops(count);
+
+      // Respin: re-roll all drops for free (replace first batch)
+      const respinChance = Math.max(0, Number(user.prestigeRespinChance) || 0);
+      const didRespin = respinChance > 0 && Math.random() * 100 < respinChance;
+      if (didRespin) {
+        const oldIds = drops.map((d) => d.inventoryId);
+        await tx.inventoryItem.deleteMany({ where: { id: { in: oldIds } } });
+        await tx.transaction.deleteMany({ where: { id: { in: createdTxIds } } });
+        const again = await createDrops(count);
+        drops = again.drops;
+        createdTxIds = again.createdTxIds;
+        await tx.transaction.create({
+          data: {
+            userId,
+            type: 'case_respin',
+            amount: 0,
+            meta: JSON.stringify({
+              caseId: c.id,
+              openCount: count,
+              inventoryItemIds: drops.map((d) => d.inventoryId),
+            }),
+          },
+        });
+      }
+
+      // Refund: chance to refund total cost
+      const refundChance = Math.max(0, Number(user.prestigeRefundChance) || 0);
+      const didRefund = refundChance > 0 && Math.random() * 100 < refundChance;
 
       const catalog = await fillCatalogSlots(
         tx,
@@ -259,7 +316,7 @@ router.post('/:id/open', requireAuth, async (req, res) => {
         drops.map((d) => d.id)
       );
 
-      const applied = applyOpens(progressRow, count, keyOpenReduction);
+      const applied = applyOpens(progressRow, count, 0);
       const updatedProgress = await tx.caseKeyProgress.update({
         where: { id: progressRow.id },
         data: {
@@ -269,10 +326,29 @@ router.post('/:id/open', requireAuth, async (req, res) => {
         },
       });
 
+      let balanceDelta = -totalCost;
+      if (didRefund) {
+        balanceDelta += totalCost;
+        await tx.transaction.create({
+          data: {
+            userId,
+            type: 'case_refund',
+            amount: totalCost,
+            meta: JSON.stringify({
+              caseId: c.id,
+              caseName: c.name,
+              openCount: count,
+              unitPrice,
+              totalCost,
+            }),
+          },
+        });
+      }
+
       const updatedUser = await tx.user.update({
         where: { id: userId },
         data: {
-          balance: { decrement: totalCost },
+          balance: { increment: balanceDelta },
         },
       });
 
@@ -280,9 +356,14 @@ router.post('/:id/open', requireAuth, async (req, res) => {
         user: publicUser(updatedUser),
         caseName: c.name,
         items: drops,
-        keyProgress: serializeKeyProgress(updatedProgress, keyOpenReduction, openBonus),
+        keyProgress: serializeKeyProgress(updatedProgress, 0, openBonus),
         keysGained: applied.keysGained,
         catalog,
+        unitPrice,
+        totalCost,
+        refunded: didRefund,
+        respin: didRespin,
+        animReduction: user.prestigeAnimReduction ?? 0,
       };
     });
 
@@ -297,6 +378,11 @@ router.post('/:id/open', requireAuth, async (req, res) => {
       keysGained: result.keysGained,
       catalog: result.catalog,
       item: result.items[0],
+      unitPrice: result.unitPrice,
+      totalCost: result.totalCost,
+      refunded: result.refunded,
+      respin: result.respin,
+      animReduction: result.animReduction,
     });
   } catch (err) {
     console.error(err);

server/src/routes/inventory.js

@@ -3,6 +3,12 @@ import { prisma } from '../db.js';
 import { requireAuth, publicUser } from '../middleware.js';
 import { applyAutoSell } from '../autoSell.js';
 import { applyGainMultiplier } from '../prestige.js';
+import {
+  maxVaultSlots,
+  summarizeVaultRates,
+  estimatePendingYield,
+} from '../vault.js';
+import { isConnected } from '../presence.js';
 
 const router = Router();
 
@@ -11,6 +17,9 @@ function serializeInv(inv) {
     id: inv.id,
     obtainedAt: inv.obtainedAt,
     locked: inv.locked,
+    staked: Boolean(inv.staked),
+    stakedAt: inv.stakedAt || null,
+    lastYieldAt: inv.lastYieldAt || null,
     floatValue: inv.floatValue,
     wear: inv.wear,
     paintSeed: inv.paintSeed,
@@ -22,7 +31,6 @@ function serializeInv(inv) {
       imageUrl: inv.item.imageUrl,
       rarity: inv.item.rarity,
       marketValue: inv.item.marketValue,
-      // Instance price for UI (prefer over catalog FT reference)
       valueCents: inv.valueCents,
       floatValue: inv.floatValue,
       wear: inv.wear,
@@ -33,14 +41,29 @@ function serializeInv(inv) {
 
 router.get('/', requireAuth, async (req, res) => {
   try {
-    const items = await prisma.inventoryItem.findMany({
+    const userId = req.session.userId;
-      where: { userId: req.session.userId, locked: false },
+    const [user, items] = await Promise.all([
+      prisma.user.findUnique({ where: { id: userId } }),
+      prisma.inventoryItem.findMany({
+        where: { userId, locked: false },
         include: { item: true },
         orderBy: { obtainedAt: 'desc' },
-    });
+      }),
+    ]);
+    if (!user) return res.status(404).json({ error: 'User not found' });
+
+    const staked = items.filter((i) => i.staked);
+    const mode = isConnected(userId) ? 'online' : 'offline';
+    const rates = summarizeVaultRates(staked, user);
 
     res.json({
       inventory: items.map(serializeInv),
+      vault: {
+        used: staked.length,
+        slots: maxVaultSlots(user),
+        ...rates,
+        pendingYield: estimatePendingYield(staked, user, mode),
+      },
     });
   } catch (err) {
     console.error(err);
@@ -98,6 +121,7 @@ router.post('/auto-sell/apply', requireAuth, async (req, res) => {
           id: { in: ids },
           userId: req.session.userId,
           locked: false,
+          staked: false,
         },
       });
 
@@ -150,12 +174,13 @@ router.post('/sell', requireAuth, async (req, res) => {
           id: { in: ids },
           userId: req.session.userId,
           locked: false,
+          staked: false,
         },
         include: { item: true },
       });
 
       if (invItems.length !== ids.length) {
-        const err = new Error('Invalid or locked inventory items');
+        const err = new Error('Invalid, locked, or staked inventory items');
         err.status = 400;
         throw err;
       }

server/src/routes/prestige.js

@@ -41,9 +41,7 @@ router.get('/', requireAuth, async (req, res) => {
     const pageVisible = isPrestigePageVisible(user, totalCents);
     const canAfford = balance >= COST;
     const canPrestige = pageVisible && canAfford && lockedCount === 0;
-    const previewPr = canAfford
+    const previewPr = canAfford ? estimatePrReward(user.balance) : 0;
-      ? estimatePrReward(user.balance, user.prestigePrBonus ?? 0)
-      : 0;
 
     res.json({
       prestige: serializePrestige(user),
@@ -69,8 +67,14 @@ router.get('/', requireAuth, async (req, res) => {
 
 router.post('/', requireAuth, async (req, res) => {
   try {
+    const userId = req.session.userId;
+
+    // Pay out pending vault yield before wipe (own transaction)
+    const { settleVaultYield } = await import('../vault.js');
+    await settleVaultYield(userId, 'offline');
+
     const result = await prisma.$transaction(async (tx) => {
-      const user = await tx.user.findUnique({ where: { id: req.session.userId } });
+      const user = await tx.user.findUnique({ where: { id: userId } });
       if (!user) {
         const err = new Error('User not found');
         err.status = 401;
@@ -98,10 +102,8 @@ router.post('/', requireAuth, async (req, res) => {
         throw err;
       }
 
-      const prGranted = computePrReward(user.balance, user.prestigePrBonus ?? 0);
+      const prGranted = computePrReward(user.balance);
       const prestigeCount = (user.prestigeCount ?? 0) + 1;
-      const startBalance = Math.max(0, Number(user.prestigeStartBonus) || 0);
-      const startOsu = Math.max(0, Number(user.prestigeStartOsu) || 0);
 
       await tx.inventoryItem.deleteMany({ where: { userId: user.id } });
       await tx.caseKeyProgress.deleteMany({ where: { userId: user.id } });
@@ -116,8 +118,6 @@ router.post('/', requireAuth, async (req, res) => {
             prestigeCount,
             prGranted,
             previousBalance: Number(user.balance),
-            startBalance,
-            startOsu,
           }),
         },
       });
@@ -134,8 +134,7 @@ router.post('/', requireAuth, async (req, res) => {
         where: { id: user.id },
         data: {
           prestigeCount,
-          balance: startBalance,
+          balance: 0,
-          ...(startOsu > 0 ? { osuBalance: { increment: startOsu } } : {}),
           prBalance: { increment: prGranted },
         },
       });

server/src/routes/shop.js

@@ -2,7 +2,7 @@ import { Router } from 'express';
 import { prisma } from '../db.js';
 import { requireAuth, publicUser } from '../middleware.js';
 import { checkAchievements } from '../achievements.js';
-import { adCooldownMs, applyAdRewardBonus, shopOsuCost } from '../prestige.js';
+import { adCooldownMs } from '../prestige.js';
 
 const router = Router();
 
@@ -22,11 +22,10 @@ function adPayload(user, overrides = {}) {
   const lastAdAt = user.lastAdAt ? new Date(user.lastAdAt).getTime() : 0;
   const nextAdAt = lastAdAt + cooldownMs;
   const adReady = Date.now() >= nextAdAt;
-  const adBonus = user.prestigeAdBonus ?? 0;
   return {
     cooldownMs,
-    rewardMin: applyAdRewardBonus(AD_REWARD_MIN, adBonus),
+    rewardMin: AD_REWARD_MIN,
-    rewardMax: applyAdRewardBonus(AD_REWARD_MAX, adBonus),
+    rewardMax: AD_REWARD_MAX,
     ready: adReady,
     nextAdAt: adReady ? null : new Date(nextAdAt).toISOString(),
     lastAdAt: user.lastAdAt,
@@ -39,10 +38,8 @@ router.get('/', requireAuth, async (req, res) => {
     const user = await prisma.user.findUnique({ where: { id: req.session.userId } });
     if (!user) return res.status(404).json({ error: 'User not found' });
 
-    const discount = user.prestigeShopDiscount ?? 0;
     const packages = SHOP_PACKAGES.map((pack) => ({
       ...pack,
-      osuCost: shopOsuCost(pack.osuCost, discount),
       baseOsuCost: pack.osuCost,
     }));
 
@@ -72,7 +69,7 @@ router.post('/buy', requireAuth, async (req, res) => {
         err.status = 404;
         throw err;
       }
-      const osuCost = shopOsuCost(pack.osuCost, user.prestigeShopDiscount ?? 0);
+      const osuCost = pack.osuCost;
       if (user.osuBalance < osuCost) {
         const err = new Error('Not enough osu');
         err.status = 400;
@@ -95,7 +92,6 @@ router.post('/buy', requireAuth, async (req, res) => {
           meta: JSON.stringify({
             packageId: pack.id,
             osuCost,
-            baseOsuCost: pack.osuCost,
             credits: pack.credits,
           }),
         },
@@ -138,9 +134,8 @@ router.post('/ad', requireAuth, async (req, res) => {
         throw err;
       }
 
-      const base =
+      const reward =
         AD_REWARD_MIN + Math.floor(Math.random() * (AD_REWARD_MAX - AD_REWARD_MIN + 1));
-      const reward = applyAdRewardBonus(base, user.prestigeAdBonus ?? 0);
       const now = new Date();
 
       const updated = await tx.user.update({
@@ -156,7 +151,7 @@ router.post('/ad', requireAuth, async (req, res) => {
           userId: user.id,
           type: 'ad_reward',
           amount: reward,
-          meta: JSON.stringify({ reward, base, adBonus: user.prestigeAdBonus ?? 0 }),
+          meta: JSON.stringify({ reward }),
         },
       });
 

server/src/routes/vault.js

@@ -0,0 +1,182 @@
+import { Router } from 'express';
+import { prisma } from '../db.js';
+import { requireAuth, publicUser } from '../middleware.js';
+import {
+  maxVaultSlots,
+  settleVaultYield,
+  summarizeVaultRates,
+  estimatePendingYield,
+} from '../vault.js';
+import { isConnected } from '../presence.js';
+
+const router = Router();
+
+router.post('/stake', requireAuth, async (req, res) => {
+  try {
+    const ids = [...new Set((req.body.inventoryItemIds || []).map(Number).filter(Boolean))];
+    if (!ids.length) {
+      return res.status(400).json({ error: 'Select at least one item to stake' });
+    }
+
+    const result = await prisma.$transaction(async (tx) => {
+      const user = await tx.user.findUnique({ where: { id: req.session.userId } });
+      if (!user) {
+        const err = new Error('User not found');
+        err.status = 401;
+        throw err;
+      }
+
+      const maxSlots = maxVaultSlots(user);
+      const used = await tx.inventoryItem.count({
+        where: { userId: user.id, staked: true },
+      });
+      const free = maxSlots - used;
+      if (ids.length > free) {
+        const err = new Error(`Vault full (${used}/${maxSlots} slots)`);
+        err.status = 400;
+        throw err;
+      }
+
+      const invItems = await tx.inventoryItem.findMany({
+        where: {
+          id: { in: ids },
+          userId: user.id,
+          locked: false,
+          staked: false,
+        },
+      });
+      if (invItems.length !== ids.length) {
+        const err = new Error('Invalid, locked, or already staked items');
+        err.status = 400;
+        throw err;
+      }
+
+      const now = new Date();
+      await tx.inventoryItem.updateMany({
+        where: { id: { in: ids }, userId: user.id },
+        data: {
+          staked: true,
+          stakedAt: now,
+          lastYieldAt: now,
+        },
+      });
+
+      return { user, stakedIds: ids, maxSlots, used: used + ids.length };
+    });
+
+    res.json({
+      user: publicUser(result.user),
+      stakedIds: result.stakedIds,
+      vault: {
+        used: result.used,
+        slots: result.maxSlots,
+      },
+    });
+  } catch (err) {
+    const status = err.status || 500;
+    if (status >= 500) console.error(err);
+    res.status(status).json({ error: err.message || 'Failed to stake items' });
+  }
+});
+
+router.post('/unstake', requireAuth, async (req, res) => {
+  try {
+    const ids = [...new Set((req.body.inventoryItemIds || []).map(Number).filter(Boolean))];
+    if (!ids.length) {
+      return res.status(400).json({ error: 'Select at least one item to unstake' });
+    }
+
+    // Settle yield before unstake (online if connected, else offline)
+    const mode = isConnected(req.session.userId) ? 'online' : 'offline';
+    const settled = await settleVaultYield(req.session.userId, mode);
+
+    const result = await prisma.$transaction(async (tx) => {
+      const user = await tx.user.findUnique({ where: { id: req.session.userId } });
+      if (!user) {
+        const err = new Error('User not found');
+        err.status = 401;
+        throw err;
+      }
+
+      const invItems = await tx.inventoryItem.findMany({
+        where: {
+          id: { in: ids },
+          userId: user.id,
+          staked: true,
+        },
+      });
+      if (invItems.length !== ids.length) {
+        const err = new Error('Invalid or not-staked items');
+        err.status = 400;
+        throw err;
+      }
+
+      await tx.inventoryItem.updateMany({
+        where: { id: { in: ids }, userId: user.id },
+        data: {
+          staked: false,
+          stakedAt: null,
+          lastYieldAt: null,
+        },
+      });
+
+      const used = await tx.inventoryItem.count({
+        where: { userId: user.id, staked: true },
+      });
+
+      const refreshed = await tx.user.findUnique({ where: { id: user.id } });
+      return {
+        user: refreshed,
+        unstakedIds: ids,
+        maxSlots: maxVaultSlots(refreshed),
+        used,
+      };
+    });
+
+    res.json({
+      user: publicUser(result.user),
+      unstakedIds: result.unstakedIds,
+      yieldCredited: settled.credited,
+      vault: {
+        used: result.used,
+        slots: result.maxSlots,
+      },
+    });
+  } catch (err) {
+    const status = err.status || 500;
+    if (status >= 500) console.error(err);
+    res.status(status).json({ error: err.message || 'Failed to unstake items' });
+  }
+});
+
+router.post('/claim', requireAuth, async (req, res) => {
+  try {
+    const mode = isConnected(req.session.userId) ? 'online' : 'offline';
+    const settled = await settleVaultYield(req.session.userId, mode);
+    const user = await prisma.user.findUnique({ where: { id: req.session.userId } });
+    if (!user) return res.status(404).json({ error: 'User not found' });
+
+    const staked = await prisma.inventoryItem.findMany({
+      where: { userId: user.id, staked: true },
+      include: { item: true },
+    });
+    const rates = summarizeVaultRates(staked, user);
+
+    res.json({
+      user: publicUser(user),
+      credited: settled.credited,
+      ticks: settled.ticks,
+      vault: {
+        used: staked.length,
+        slots: maxVaultSlots(user),
+        ...rates,
+        pendingYield: estimatePendingYield(staked, user, mode),
+      },
+    });
+  } catch (err) {
+    console.error(err);
+    res.status(500).json({ error: err.message || 'Failed to claim vault yield' });
+  }
+});
+
+export default router;

server/src/services/duel.js

@@ -241,11 +241,11 @@ export async function placeDuelBet(userId, roomId, inventoryItemIds) {
     }
 
     const invItems = await tx.inventoryItem.findMany({
-      where: { id: { in: ids }, userId, locked: false },
+      where: { id: { in: ids }, userId, locked: false, staked: false },
       include: { item: true },
     });
     if (invItems.length !== ids.length) {
-      throw Object.assign(new Error('Invalid or locked inventory items'), { status: 400 });
+      throw Object.assign(new Error('Invalid, locked, or staked inventory items'), { status: 400 });
     }
 
     for (const inv of invItems) {

server/src/services/jackpot.js

@@ -248,11 +248,11 @@ export async function placeJackpotBet(userId, inventoryItemIds) {
     }
 
     const invItems = await tx.inventoryItem.findMany({
-      where: { id: { in: ids }, userId, locked: false },
+      where: { id: { in: ids }, userId, locked: false, staked: false },
       include: { item: true },
     });
     if (invItems.length !== ids.length) {
-      throw Object.assign(new Error('Invalid or locked inventory items'), { status: 400 });
+      throw Object.assign(new Error('Invalid, locked, or staked inventory items'), { status: 400 });
     }
 
     for (const inv of invItems) {

server/src/vault.js

@@ -0,0 +1,157 @@
+import { prisma } from './db.js';
+
+export const BASE_VAULT_SLOTS = 3;
+export const VAULT_TICK_MS = 600_000; // 10 minutes
+export const ONLINE_BASE_RATE = 0.1; // 10% of value per tick
+export const OFFLINE_BASE_RATE = 0.01; // 1% of value per tick
+export const WEAR_FLOAT_K = 3;
+
+/** Rarity → yield multiplier (seed rarities + fallbacks). */
+export const RARITY_YIELD_MULT = {
+  Consumer: 0.8,
+  Industrial: 0.9,
+  MilSpec: 1.0,
+  Restricted: 1.15,
+  Classified: 1.35,
+  Covert: 1.55,
+  Extraordinary: 1.8,
+};
+
+export function maxVaultSlots(user) {
+  return BASE_VAULT_SLOTS + Math.max(0, Math.floor(Number(user?.prestigeVaultSlots) || 0));
+}
+
+export function wearYieldMult(floatValue) {
+  const f = Math.min(1, Math.max(0, Number(floatValue) || 0));
+  return 1 + f * f * WEAR_FLOAT_K;
+}
+
+export function rarityYieldMult(rarity) {
+  const key = String(rarity || '');
+  return RARITY_YIELD_MULT[key] ?? 1.0;
+}
+
+export function skillYieldMult(user, mode) {
+  const pct =
+    mode === 'online'
+      ? Number(user?.prestigeOnlineYield) || 0
+      : Number(user?.prestigeOfflineYield) || 0;
+  if (pct <= 0) return 1;
+  return 1 + pct / 100;
+}
+
+export function tickPayoutCents(inv, user, mode) {
+  const value = Math.max(0, Math.floor(Number(inv.valueCents) || 0));
+  if (value <= 0) return 0;
+  const baseRate = mode === 'online' ? ONLINE_BASE_RATE : OFFLINE_BASE_RATE;
+  const wear = wearYieldMult(inv.floatValue);
+  const rarity = rarityYieldMult(inv.item?.rarity ?? inv.rarity);
+  const skill = skillYieldMult(user, mode);
+  const payout = Math.floor(value * baseRate * wear * rarity * skill);
+  // Soft cap: at most 100% of item value per tick
+  return Math.min(value, Math.max(0, payout));
+}
+
+export function estimateTickYield(inv, user, mode) {
+  return tickPayoutCents(inv, user, mode);
+}
+
+/**
+ * Settle complete vault ticks for a user.
+ * @param {'online'|'offline'} mode
+ * @param {Date|number} [until] settle up to this time (default now)
+ * @returns {{ credited: number, ticks: number, itemIds: number[] }}
+ */
+export async function settleVaultYield(userId, mode, until = Date.now()) {
+  const id = Number(userId);
+  if (!id) return { credited: 0, ticks: 0, itemIds: [] };
+
+  const untilMs = until instanceof Date ? until.getTime() : Number(until) || Date.now();
+
+  return prisma.$transaction(async (tx) => {
+    const user = await tx.user.findUnique({ where: { id } });
+    if (!user) return { credited: 0, ticks: 0, itemIds: [] };
+
+    const items = await tx.inventoryItem.findMany({
+      where: { userId: id, staked: true },
+      include: { item: true },
+    });
+    if (!items.length) return { credited: 0, ticks: 0, itemIds: [] };
+
+    let totalCredit = 0;
+    let maxTicks = 0;
+    const itemIds = [];
+    const now = new Date(untilMs);
+
+    for (const inv of items) {
+      const anchor = inv.lastYieldAt || inv.stakedAt || now;
+      const anchorMs = new Date(anchor).getTime();
+      const elapsed = Math.max(0, untilMs - anchorMs);
+      const ticks = Math.floor(elapsed / VAULT_TICK_MS);
+      if (ticks <= 0) continue;
+
+      const perTick = tickPayoutCents(inv, user, mode);
+      const credit = perTick * ticks;
+      if (credit > 0) {
+        totalCredit += credit;
+        itemIds.push(inv.id);
+      }
+      maxTicks = Math.max(maxTicks, ticks);
+
+      const advanced = new Date(anchorMs + ticks * VAULT_TICK_MS);
+      await tx.inventoryItem.update({
+        where: { id: inv.id },
+        data: { lastYieldAt: advanced },
+      });
+    }
+
+    if (totalCredit <= 0) {
+      return { credited: 0, ticks: maxTicks, itemIds: [] };
+    }
+
+    await tx.user.update({
+      where: { id },
+      data: { balance: { increment: totalCredit } },
+    });
+
+    await tx.transaction.create({
+      data: {
+        userId: id,
+        type: 'vault_yield',
+        amount: totalCredit,
+        meta: JSON.stringify({
+          mode,
+          ticks: maxTicks,
+          inventoryItemIds: itemIds,
+        }),
+      },
+    });
+
+    return { credited: totalCredit, ticks: maxTicks, itemIds };
+  });
+}
+
+/** Estimate pending yield for UI (incomplete ticks not included). */
+export function estimatePendingYield(items, user, mode, now = Date.now()) {
+  let total = 0;
+  for (const inv of items) {
+    const anchor = inv.lastYieldAt || inv.stakedAt;
+    if (!anchor) continue;
+    const elapsed = Math.max(0, now - new Date(anchor).getTime());
+    const ticks = Math.floor(elapsed / VAULT_TICK_MS);
+    if (ticks <= 0) continue;
+    total += tickPayoutCents(inv, user, mode) * ticks;
+  }
+  return total;
+}
+
+/** Per-tick rate summary for UI (one tick online / offline). */
+export function summarizeVaultRates(items, user) {
+  let onlinePerTick = 0;
+  let offlinePerTick = 0;
+  for (const inv of items) {
+    onlinePerTick += tickPayoutCents(inv, user, 'online');
+    offlinePerTick += tickPayoutCents(inv, user, 'offline');
+  }
+  return { onlinePerTick, offlinePerTick, tickMs: VAULT_TICK_MS };
+}

server/src/wear.js

@@ -110,13 +110,26 @@ export function rollPaintSeed() {
   return Math.floor(Math.random() * 1000);
 }
 
+/**
+ * Quality skill: pull floats below Field-Tested (WW/BS, float ≥ 0.38)
+ * toward FT band. Clamp so result stays ≥ FT min (0.15).
+ */
+export function applyQualityUpgrade(floatValue, qualityBonus = 0) {
+  let f = clampFloat(floatValue);
+  const levels = Math.max(0, Math.floor(Number(qualityBonus) || 0));
+  if (levels <= 0 || f < 0.38) return f;
+  f = clampFloat(f - levels * 0.02);
+  return Math.max(0.15, f);
+}
+
 /** Full roll for a new inventory instance from catalog marketValue */
-export function rollInstanceValue(baseMarketValue, wearBonus = 0) {
+export function rollInstanceValue(baseMarketValue, wearBonus = 0, qualityBonus = 0) {
   let floatValue = rollFloat();
   const bias = Math.min(0.55, Math.max(0, Number(wearBonus) || 0) * 0.008);
   if (bias > 0) {
     floatValue = clampFloat(floatValue * (1 - bias));
   }
+  floatValue = applyQualityUpgrade(floatValue, qualityBonus);
   return {
     floatValue,
     wear: wearFromFloat(floatValue),