feat: add equipment, achievements, and visual polish

- Equipment system: 12 items across weapon/armour/trinket slots with common/rare/epic/legendary rarities; starter commons auto-equipped, higher tiers drop from boss victories - Achievement system: 15 milestones with typed conditions; checked each tick and crystal rewards applied automatically - Achievement toast: slide-in notification, auto-dismisses after 4s - Floating click text: +X gold floats on each manual click - Expanded quests (9 total) and upgrades (12 total) - Upgrade panel now shows locked upgrades so players can see their progression path - formatNumber utility (K/M/B/T) used consistently across all panels - Backfill logic for existing saves to add new content gracefully - types package now emits .d.ts declarations
2026-03-06 13:27:48 -08:00
parent a3daed1683
commit e9e0df31fd
33 changed files with 2066 additions and 133 deletions
@@ -0,0 +1,139 @@
+import type { Achievement } from "@elysium/types";
+
+export const DEFAULT_ACHIEVEMENTS: Achievement[] = [
+  {
+    id: "first_click",
+    name: "First Strike",
+    description: "Click the Guild Hall for the first time.",
+    icon: "👆",
+    condition: { type: "totalClicks", amount: 1 },
+    reward: { crystals: 5 },
+    unlockedAt: null,
+  },
+  {
+    id: "click_enthusiast",
+    name: "Click Enthusiast",
+    description: "Click the Guild Hall 100 times.",
+    icon: "🖱️",
+    condition: { type: "totalClicks", amount: 100 },
+    reward: { crystals: 25 },
+    unlockedAt: null,
+  },
+  {
+    id: "click_master",
+    name: "Click Master",
+    description: "Click the Guild Hall 1,000 times.",
+    icon: "⚡",
+    condition: { type: "totalClicks", amount: 1_000 },
+    reward: { crystals: 100 },
+    unlockedAt: null,
+  },
+  {
+    id: "first_gold",
+    name: "First Gold",
+    description: "Earn your first 100 gold.",
+    icon: "🪙",
+    condition: { type: "totalGoldEarned", amount: 100 },
+    reward: { crystals: 5 },
+    unlockedAt: null,
+  },
+  {
+    id: "wealthy",
+    name: "Wealthy",
+    description: "Earn 10,000 gold in total.",
+    icon: "💰",
+    condition: { type: "totalGoldEarned", amount: 10_000 },
+    reward: { crystals: 25 },
+    unlockedAt: null,
+  },
+  {
+    id: "rich",
+    name: "Rich",
+    description: "Earn 1,000,000 gold in total.",
+    icon: "👑",
+    condition: { type: "totalGoldEarned", amount: 1_000_000 },
+    reward: { crystals: 100 },
+    unlockedAt: null,
+  },
+  {
+    id: "billionaire",
+    name: "Billionaire",
+    description: "Earn 1,000,000,000 gold in total.",
+    icon: "🏦",
+    condition: { type: "totalGoldEarned", amount: 1_000_000_000 },
+    reward: { crystals: 500 },
+    unlockedAt: null,
+  },
+  {
+    id: "first_quest",
+    name: "Adventurous Spirit",
+    description: "Complete your first quest.",
+    icon: "📜",
+    condition: { type: "questsCompleted", amount: 1 },
+    reward: { crystals: 10 },
+    unlockedAt: null,
+  },
+  {
+    id: "quest_veteran",
+    name: "Quest Veteran",
+    description: "Complete 5 quests.",
+    icon: "📚",
+    condition: { type: "questsCompleted", amount: 5 },
+    reward: { crystals: 50 },
+    unlockedAt: null,
+  },
+  {
+    id: "boss_slayer",
+    name: "Boss Slayer",
+    description: "Defeat your first boss.",
+    icon: "⚔️",
+    condition: { type: "bossesDefeated", amount: 1 },
+    reward: { crystals: 25 },
+    unlockedAt: null,
+  },
+  {
+    id: "legendary_hunter",
+    name: "Legendary Hunter",
+    description: "Defeat all four bosses.",
+    icon: "🏆",
+    condition: { type: "bossesDefeated", amount: 4 },
+    reward: { crystals: 200 },
+    unlockedAt: null,
+  },
+  {
+    id: "guild_master",
+    name: "Guild Master",
+    description: "Recruit a total of 50 adventurers.",
+    icon: "🏰",
+    condition: { type: "adventurerTotal", amount: 50 },
+    reward: { crystals: 50 },
+    unlockedAt: null,
+  },
+  {
+    id: "army_commander",
+    name: "Army Commander",
+    description: "Recruit a total of 500 adventurers.",
+    icon: "🛡️",
+    condition: { type: "adventurerTotal", amount: 500 },
+    reward: { crystals: 200 },
+    unlockedAt: null,
+  },
+  {
+    id: "first_prestige",
+    name: "Born Again",
+    description: "Prestige for the first time.",
+    icon: "⭐",
+    condition: { type: "prestigeCount", amount: 1 },
+    reward: { crystals: 100 },
+    unlockedAt: null,
+  },
+  {
+    id: "collector",
+    name: "Collector",
+    description: "Acquire your first piece of boss-dropped equipment.",
+    icon: "🎒",
+    condition: { type: "equipmentOwned", amount: 4 },
+    reward: { crystals: 10 },
+    unlockedAt: null,
+  },
+];
@@ -8,6 +8,7 @@ export const DEFAULT_ADVENTURERS: Adventurer[] = [
    level: 1,
    goldPerSecond: 0.1,
    essencePerSecond: 0,
+    combatPower: 1,
    count: 0,
    unlocked: true,
  },
@@ -18,6 +19,7 @@ export const DEFAULT_ADVENTURERS: Adventurer[] = [
    level: 2,
    goldPerSecond: 0.5,
    essencePerSecond: 0,
+    combatPower: 3,
    count: 0,
    unlocked: false,
  },
@@ -28,6 +30,7 @@ export const DEFAULT_ADVENTURERS: Adventurer[] = [
    level: 3,
    goldPerSecond: 1.5,
    essencePerSecond: 0.01,
+    combatPower: 8,
    count: 0,
    unlocked: false,
  },
@@ -38,6 +41,7 @@ export const DEFAULT_ADVENTURERS: Adventurer[] = [
    level: 4,
    goldPerSecond: 4,
    essencePerSecond: 0.02,
+    combatPower: 20,
    count: 0,
    unlocked: false,
  },
@@ -48,6 +52,7 @@ export const DEFAULT_ADVENTURERS: Adventurer[] = [
    level: 5,
    goldPerSecond: 10,
    essencePerSecond: 0.05,
+    combatPower: 50,
    count: 0,
    unlocked: false,
  },
@@ -58,6 +63,7 @@ export const DEFAULT_ADVENTURERS: Adventurer[] = [
    level: 6,
    goldPerSecond: 25,
    essencePerSecond: 0.1,
+    combatPower: 120,
    count: 0,
    unlocked: false,
  },
@@ -68,6 +74,7 @@ export const DEFAULT_ADVENTURERS: Adventurer[] = [
    level: 7,
    goldPerSecond: 75,
    essencePerSecond: 0.2,
+    combatPower: 300,
    count: 0,
    unlocked: false,
  },
@@ -78,6 +85,7 @@ export const DEFAULT_ADVENTURERS: Adventurer[] = [
    level: 8,
    goldPerSecond: 200,
    essencePerSecond: 0.5,
+    combatPower: 800,
    count: 0,
    unlocked: false,
  },
@@ -88,6 +96,7 @@ export const DEFAULT_ADVENTURERS: Adventurer[] = [
    level: 9,
    goldPerSecond: 600,
    essencePerSecond: 1,
+    combatPower: 2000,
    count: 0,
    unlocked: false,
  },
@@ -98,6 +107,7 @@ export const DEFAULT_ADVENTURERS: Adventurer[] = [
    level: 10,
    goldPerSecond: 2000,
    essencePerSecond: 3,
+    combatPower: 6000,
    count: 0,
    unlocked: false,
  },
@@ -14,6 +14,7 @@ export const DEFAULT_BOSSES: Boss[] = [
    essenceReward: 25,
    crystalReward: 0,
    upgradeRewards: ["click_2"],
+    equipmentRewards: ["iron_sword", "chainmail", "mages_focus"],
    prestigeRequirement: 0,
  },
  {
@@ -29,6 +30,7 @@ export const DEFAULT_BOSSES: Boss[] = [
    essenceReward: 200,
    crystalReward: 10,
    upgradeRewards: ["global_2"],
+    equipmentRewards: ["enchanted_blade", "plate_armour", "arcane_orb"],
    prestigeRequirement: 0,
  },
  {
@@ -44,6 +46,7 @@ export const DEFAULT_BOSSES: Boss[] = [
    essenceReward: 1_000,
    crystalReward: 50,
    upgradeRewards: ["click_3"],
+    equipmentRewards: ["vorpal_sword", "dragon_scale"],
    prestigeRequirement: 1,
  },
  {
@@ -59,6 +62,7 @@ export const DEFAULT_BOSSES: Boss[] = [
    essenceReward: 5_000,
    crystalReward: 200,
    upgradeRewards: [],
+    equipmentRewards: ["philosophers_stone"],
    prestigeRequirement: 3,
  },
 ];
@@ -0,0 +1,127 @@
+import type { Equipment } from "@elysium/types";
+
+export const DEFAULT_EQUIPMENT: Equipment[] = [
+  // Weapons — drop from bosses; common starts owned
+  {
+    id: "rusty_sword",
+    name: "Rusty Sword",
+    description: "A battered blade, but still sharp enough to draw blood.",
+    type: "weapon",
+    rarity: "common",
+    bonus: { combatMultiplier: 1.1 },
+    owned: true,
+    equipped: true,
+  },
+  {
+    id: "iron_sword",
+    name: "Iron Sword",
+    description: "A sturdy weapon issued to veterans of the guild.",
+    type: "weapon",
+    rarity: "rare",
+    bonus: { combatMultiplier: 1.25 },
+    owned: false,
+    equipped: false,
+  },
+  {
+    id: "enchanted_blade",
+    name: "Enchanted Blade",
+    description: "A sword imbued with ancient magic that makes every strike count.",
+    type: "weapon",
+    rarity: "epic",
+    bonus: { combatMultiplier: 1.5 },
+    owned: false,
+    equipped: false,
+  },
+  {
+    id: "vorpal_sword",
+    name: "Vorpal Sword",
+    description: "A legendary blade that severs even the strongest bonds.",
+    type: "weapon",
+    rarity: "legendary",
+    bonus: { combatMultiplier: 2.0 },
+    owned: false,
+    equipped: false,
+  },
+  // Armour — drop from bosses; common starts owned
+  {
+    id: "leather_armour",
+    name: "Leather Armour",
+    description: "Simple protection that keeps your adventurers moving efficiently.",
+    type: "armour",
+    rarity: "common",
+    bonus: { goldMultiplier: 1.1 },
+    owned: true,
+    equipped: true,
+  },
+  {
+    id: "chainmail",
+    name: "Chainmail",
+    description: "Interlocked rings that guard against most mundane threats.",
+    type: "armour",
+    rarity: "rare",
+    bonus: { goldMultiplier: 1.25 },
+    owned: false,
+    equipped: false,
+  },
+  {
+    id: "plate_armour",
+    name: "Plate Armour",
+    description: "Full plate protection that inspires confidence — and gold.",
+    type: "armour",
+    rarity: "epic",
+    bonus: { goldMultiplier: 1.5 },
+    owned: false,
+    equipped: false,
+  },
+  {
+    id: "dragon_scale",
+    name: "Dragon Scale Armour",
+    description: "Armour forged from the scales of a defeated elder dragon.",
+    type: "armour",
+    rarity: "legendary",
+    bonus: { goldMultiplier: 2.0 },
+    owned: false,
+    equipped: false,
+  },
+  // Trinkets — drop from bosses; common starts owned
+  {
+    id: "lucky_coin",
+    name: "Lucky Coin",
+    description: "A coin that always lands on the side you need.",
+    type: "trinket",
+    rarity: "common",
+    bonus: { clickMultiplier: 1.1 },
+    owned: true,
+    equipped: true,
+  },
+  {
+    id: "mages_focus",
+    name: "Mage's Focus",
+    description: "A crystal lens that sharpens magical precision.",
+    type: "trinket",
+    rarity: "rare",
+    bonus: { clickMultiplier: 1.25 },
+    owned: false,
+    equipped: false,
+  },
+  {
+    id: "arcane_orb",
+    name: "Arcane Orb",
+    description: "An orb humming with concentrated arcane energy.",
+    type: "trinket",
+    rarity: "epic",
+    bonus: { clickMultiplier: 1.5 },
+    owned: false,
+    equipped: false,
+  },
+  {
+    id: "philosophers_stone",
+    name: "Philosopher's Stone",
+    description: "The legendary stone that grants mastery over gold and combat alike.",
+    type: "trinket",
+    rarity: "legendary",
+    bonus: { clickMultiplier: 2.0, goldMultiplier: 1.25 },
+    owned: false,
+    equipped: false,
+  },
+];
@@ -1,6 +1,8 @@
 import type { GameState, Player, PrestigeData } from "@elysium/types";
+import { DEFAULT_ACHIEVEMENTS } from "./achievements.js";
 import { DEFAULT_ADVENTURERS } from "./adventurers.js";
 import { DEFAULT_BOSSES } from "./bosses.js";
+import { DEFAULT_EQUIPMENT } from "./equipment.js";
 import { DEFAULT_QUESTS } from "./quests.js";
 import { DEFAULT_UPGRADES } from "./upgrades.js";

@@ -28,6 +30,8 @@ export const INITIAL_GAME_STATE = (player: Player, characterName: string): GameS
  upgrades: structuredClone(DEFAULT_UPGRADES),
  quests: structuredClone(DEFAULT_QUESTS),
  bosses: structuredClone(DEFAULT_BOSSES),
+  equipment: structuredClone(DEFAULT_EQUIPMENT),
+  achievements: structuredClone(DEFAULT_ACHIEVEMENTS),
  prestige: INITIAL_PRESTIGE,
  baseClickPower: 1,
  lastTickAt: Date.now(),
@@ -34,6 +34,20 @@ export const DEFAULT_QUESTS: Quest[] = [
    ],
    prerequisiteIds: ["goblin_camp"],
  },
+  {
+    id: "necromancer_tower",
+    name: "Necromancer's Tower",
+    description:
+      "A rogue necromancer has raised an army of skeletons near the city. Silence him before the dead overrun us.",
+    status: "locked",
+    durationSeconds: 25 * 60,
+    rewards: [
+      { type: "gold", amount: 15_000 },
+      { type: "essence", amount: 20 },
+      { type: "upgrade", targetId: "cleric_1" },
+    ],
+    prerequisiteIds: ["haunted_mine"],
+  },
  {
    id: "ancient_ruins",
    name: "Ancient Ruins",
@@ -46,6 +60,19 @@ export const DEFAULT_QUESTS: Quest[] = [
    ],
    prerequisiteIds: ["haunted_mine"],
  },
+  {
+    id: "shadow_mere",
+    name: "The Shadow Mere",
+    description:
+      "A cursed lake shrouded in permanent twilight. Strange energies pulse beneath its surface.",
+    status: "locked",
+    durationSeconds: 45 * 60,
+    rewards: [
+      { type: "essence", amount: 150 },
+      { type: "upgrade", targetId: "scout_1" },
+    ],
+    prerequisiteIds: ["ancient_ruins"],
+  },
  {
    id: "dragon_lair",
    name: "Dragon's Lair",
@@ -60,4 +87,32 @@ export const DEFAULT_QUESTS: Quest[] = [
    ],
    prerequisiteIds: ["ancient_ruins"],
  },
+  {
+    id: "frozen_wastes",
+    name: "The Frozen Wastes",
+    description:
+      "A tundra at the edge of the world, home to creatures that have never seen the sun. Rumours speak of artefacts buried in the permafrost.",
+    status: "locked",
+    durationSeconds: 2 * 60 * 60,
+    rewards: [
+      { type: "gold", amount: 2_000_000 },
+      { type: "crystals", amount: 150 },
+      { type: "upgrade", targetId: "global_3" },
+    ],
+    prerequisiteIds: ["dragon_lair"],
+  },
+  {
+    id: "void_rift",
+    name: "Void Rift",
+    description:
+      "A tear in reality itself. What lies beyond defies description — but the power within is unlike anything of this world.",
+    status: "locked",
+    durationSeconds: 4 * 60 * 60,
+    rewards: [
+      { type: "crystals", amount: 500 },
+      { type: "essence", amount: 5_000 },
+      { type: "upgrade", targetId: "knight_1" },
+    ],
+    prerequisiteIds: ["frozen_wastes"],
+  },
 ];
@@ -58,6 +58,17 @@ export const DEFAULT_UPGRADES: Upgrade[] = [
    purchased: false,
    unlocked: false,
  },
+  {
+    id: "global_3",
+    name: "Royal Patronage",
+    description: "The king himself backs your guild. All income doubled.",
+    target: "global",
+    multiplier: 2,
+    costGold: 1_000_000,
+    costEssence: 100,
+    purchased: false,
+    unlocked: false,
+  },
  // Adventurer-specific upgrades
  {
    id: "peasant_1",
@@ -95,4 +106,40 @@ export const DEFAULT_UPGRADES: Upgrade[] = [
    purchased: false,
    unlocked: false,
  },
+  {
+    id: "cleric_1",
+    name: "Holy Rites",
+    description: "Sacred ceremonies double the output of your clerics.",
+    target: "adventurer",
+    adventurerId: "acolyte",
+    multiplier: 2,
+    costGold: 8_000,
+    costEssence: 3,
+    purchased: false,
+    unlocked: false,
+  },
+  {
+    id: "scout_1",
+    name: "Stealth Training",
+    description: "Advanced scouting techniques double ranger effectiveness.",
+    target: "adventurer",
+    adventurerId: "ranger",
+    multiplier: 2,
+    costGold: 15_000,
+    costEssence: 5,
+    purchased: false,
+    unlocked: false,
+  },
+  {
+    id: "knight_1",
+    name: "Tempered Steel",
+    description: "Superior forging techniques double the output of your knights.",
+    target: "adventurer",
+    adventurerId: "knight",
+    multiplier: 2,
+    costGold: 50_000,
+    costEssence: 10,
+    purchased: false,
+    unlocked: false,
+  },
 ];
@@ -1,34 +1,67 @@
-import type { BossDamageRequest, GameState } from "@elysium/types";
+import type { BossChallengeResponse, GameState } from "@elysium/types";
 import { Hono } from "hono";
 import { prisma } from "../db/client.js";
 import { authMiddleware } from "../middleware/auth.js";

-const RATE_LIMIT_WINDOW_MS = 1_000;
-const MAX_DAMAGE_PER_SECOND = 10_000;
-
 export const bossRouter = new Hono();

 bossRouter.use("*", authMiddleware);

-bossRouter.post("/damage", async (context) => {
-  const discordId = context.get("discordId") as string;
-  const body = await context.req.json<BossDamageRequest>();
-
-  if (!body.bossId || body.damage == null || body.damage <= 0) {
-    return context.json({ error: "Invalid request body" }, 400);
+const calculatePartyStats = (
+  state: GameState,
+): { partyDPS: number; partyMaxHp: number } => {
+  let globalMultiplier = 1;
+  for (const upgrade of state.upgrades) {
+    if (upgrade.purchased && upgrade.target === "global") {
+      globalMultiplier *= upgrade.multiplier;
+    }
  }

-  // Rate limiting: sum damage dealt to this boss in the last second
-  const windowStart = Date.now() - RATE_LIMIT_WINDOW_MS;
-  const aggregate = await prisma.bossDamageLog.aggregate({
-    where: { discordId, bossId: body.bossId, dealtAt: { gt: windowStart } },
-    _sum: { damage: true },
-  });
+  const prestigeMultiplier = 1 + state.prestige.count * 0.1;

-  const recentDamage = aggregate._sum.damage ?? 0;
+  // Apply equipped weapon's combat bonus
+  const equipmentCombatMultiplier = (state.equipment ?? [])
+    .filter((e) => e.equipped && e.bonus.combatMultiplier != null)
+    .reduce((mult, e) => mult * (e.bonus.combatMultiplier ?? 1), 1);

-  if (recentDamage + body.damage > MAX_DAMAGE_PER_SECOND) {
-    return context.json({ error: "Rate limit exceeded" }, 429);
+  let partyDPS = 0;
+  let partyMaxHp = 0;
+
+  for (const adventurer of state.adventurers) {
+    if (adventurer.count === 0) continue;
+
+    let adventurerMultiplier = 1;
+    for (const upgrade of state.upgrades) {
+      if (
+        upgrade.purchased &&
+        upgrade.target === "adventurer" &&
+        upgrade.adventurerId === adventurer.id
+      ) {
+        adventurerMultiplier *= upgrade.multiplier;
+      }
+    }
+
+    partyDPS +=
+      adventurer.combatPower *
+      adventurer.count *
+      adventurerMultiplier *
+      globalMultiplier *
+      prestigeMultiplier;
+
+    partyMaxHp += adventurer.level * 50 * adventurer.count;
+  }
+
+  partyDPS *= equipmentCombatMultiplier;
+
+  return { partyDPS, partyMaxHp };
+};
+
+bossRouter.post("/challenge", async (context) => {
+  const discordId = context.get("discordId") as string;
+  const body = await context.req.json<{ bossId: string }>();
+
+  if (!body.bossId) {
+    return context.json({ error: "Invalid request body" }, 400);
  }

  const record = await prisma.gameState.findUnique({ where: { discordId } });
@@ -44,7 +77,7 @@ bossRouter.post("/damage", async (context) => {
    return context.json({ error: "Boss not found" }, 404);
  }

-  if (boss.status !== "in_progress" && boss.status !== "available") {
+  if (boss.status !== "available" && boss.status !== "in_progress") {
    return context.json({ error: "Boss is not currently available" }, 400);
  }

@@ -52,18 +85,40 @@ bossRouter.post("/damage", async (context) => {
    return context.json({ error: "Prestige requirement not met" }, 403);
  }

-  await prisma.bossDamageLog.create({
-    data: { discordId, bossId: body.bossId, damage: body.damage, dealtAt: Date.now() },
-  });
+  const { partyDPS, partyMaxHp } = calculatePartyStats(state);

-  boss.status = "in_progress";
-  boss.currentHp = Math.max(0, boss.currentHp - body.damage);
-  const defeated = boss.currentHp <= 0;
+  if (partyDPS === 0 || partyMaxHp === 0 || !isFinite(partyDPS) || !isFinite(partyMaxHp)) {
+    return context.json(
+      { error: "Your party has no adventurers ready to fight" },
+      400,
+    );
+  }

-  let rewards: { gold: number; essence: number; crystals: number; upgradeIds: string[] } | undefined;
+  const bossHpBefore = boss.currentHp;
+  const bossDPS = boss.damagePerSecond;
+
+  const timeToKillBoss = bossHpBefore / partyDPS;
+  const timeToKillParty = partyMaxHp / bossDPS;
+
+  const won = timeToKillBoss <= timeToKillParty;
+
+  let partyHpRemaining: number;
+  let bossHpAtBattleEnd: number;
+  let bossNewHp: number;
+  let rewards: BossChallengeResponse["rewards"];
+  let casualties: BossChallengeResponse["casualties"];
+
+  if (won) {
+    bossHpAtBattleEnd = 0;
+    bossNewHp = 0;
+    partyHpRemaining = Math.max(
+      0,
+      partyMaxHp - bossDPS * timeToKillBoss,
+    );

-  if (defeated) {
    boss.status = "defeated";
+    boss.currentHp = 0;
+
    state.resources.gold += boss.goldReward;
    state.resources.essence += boss.essenceReward;
    state.resources.crystals += boss.crystalReward;
@@ -76,6 +131,21 @@ bossRouter.post("/damage", async (context) => {
      }
    }

+    // Grant equipment rewards — auto-equip if the slot is currently empty
+    const equipmentRewards = boss.equipmentRewards ?? [];
+    for (const equipmentId of equipmentRewards) {
+      const equipment = (state.equipment ?? []).find((e) => e.id === equipmentId);
+      if (equipment) {
+        equipment.owned = true;
+        const slotAlreadyEquipped = (state.equipment ?? []).some(
+          (e) => e.type === equipment.type && e.equipped,
+        );
+        if (!slotAlreadyEquipped) {
+          equipment.equipped = true;
+        }
+      }
+    }
+
    const bossIndex = state.bosses.findIndex((b) => b.id === body.bossId);
    const nextBoss = state.bosses[bossIndex + 1];
    if (nextBoss && nextBoss.prestigeRequirement <= state.prestige.count) {
@@ -87,7 +157,33 @@ bossRouter.post("/damage", async (context) => {
      essence: boss.essenceReward,
      crystals: boss.crystalReward,
      upgradeIds: boss.upgradeRewards,
+      equipmentIds: equipmentRewards,
    };
+  } else {
+    bossHpAtBattleEnd = Math.max(
+      0,
+      bossHpBefore - partyDPS * timeToKillParty,
+    );
+    bossNewHp = boss.maxHp;
+    partyHpRemaining = 0;
+
+    boss.status = "available";
+    boss.currentHp = boss.maxHp;
+
+    // How close was the party to winning? (0 = hopeless, 1 = nearly won)
+    const victoryProgress = Math.min(1, timeToKillParty / timeToKillBoss);
+    // Casualty rate scales from ~0% (nearly won) to 60% (completely outmatched)
+    const casualtyFraction = (1 - victoryProgress) * 0.6;
+
+    casualties = [];
+    for (const adventurer of state.adventurers) {
+      if (adventurer.count === 0) continue;
+      const killed = Math.floor(adventurer.count * casualtyFraction);
+      if (killed > 0) {
+        adventurer.count = Math.max(1, adventurer.count - killed);
+        casualties.push({ adventurerId: adventurer.id, killed });
+      }
+    }
  }

  const now = Date.now();
@@ -96,5 +192,19 @@ bossRouter.post("/damage", async (context) => {
    data: { state: state as object, updatedAt: now },
  });

-  return context.json({ currentHp: boss.currentHp, defeated, rewards });
+  const response: BossChallengeResponse = {
+    won,
+    partyDPS,
+    bossDPS,
+    bossHpBefore,
+    bossMaxHp: boss.maxHp,
+    bossHpAtBattleEnd,
+    bossNewHp,
+    partyMaxHp,
+    partyHpRemaining,
+  };
+  if (rewards !== undefined) response.rewards = rewards;
+  if (casualties !== undefined) response.casualties = casualties;
+
+  return context.json(response);
 });
@@ -1,6 +1,9 @@
 import type { GameState, SaveRequest } from "@elysium/types";
 import { Hono } from "hono";
 import { prisma } from "../db/client.js";
+import { DEFAULT_ACHIEVEMENTS } from "../data/achievements.js";
+import { DEFAULT_ADVENTURERS } from "../data/adventurers.js";
+import { DEFAULT_EQUIPMENT } from "../data/equipment.js";
 import { authMiddleware } from "../middleware/auth.js";
 import { calculateOfflineGold } from "../services/offlineProgress.js";

@@ -18,6 +21,72 @@ gameRouter.get("/load", async (context) => {
  }

  const state = record.state as unknown as GameState;
+
+  let needsBackfill = false;
+
+  // Backfill combatPower on saves that predate the field
+  for (const adventurer of state.adventurers) {
+    if (adventurer.combatPower == null) {
+      const defaults = DEFAULT_ADVENTURERS.find((d) => d.id === adventurer.id);
+      adventurer.combatPower = defaults?.combatPower ?? 1;
+      needsBackfill = true;
+    }
+  }
+
+  // Backfill equipment on saves that predate the feature
+  if (!Array.isArray(state.equipment) || state.equipment.length === 0) {
+    state.equipment = structuredClone(DEFAULT_EQUIPMENT);
+    needsBackfill = true;
+  } else {
+    // Merge in any equipment items missing from existing saves (new items added later)
+    for (const defaultItem of DEFAULT_EQUIPMENT) {
+      if (!state.equipment.some((e) => e.id === defaultItem.id)) {
+        state.equipment.push(structuredClone(defaultItem));
+        needsBackfill = true;
+      }
+    }
+  }
+
+  // Backfill achievements on saves that predate the feature
+  if (!Array.isArray(state.achievements) || state.achievements.length === 0) {
+    state.achievements = structuredClone(DEFAULT_ACHIEVEMENTS);
+    needsBackfill = true;
+  } else {
+    // Merge in any achievements missing from existing saves
+    for (const defaultAchievement of DEFAULT_ACHIEVEMENTS) {
+      if (!state.achievements.some((a) => a.id === defaultAchievement.id)) {
+        state.achievements.push(structuredClone(defaultAchievement));
+        needsBackfill = true;
+      }
+    }
+  }
+
+  // Backfill equipmentRewards on bosses that predate the field
+  for (const boss of state.bosses) {
+    if (!Array.isArray(boss.equipmentRewards)) {
+      boss.equipmentRewards = [];
+      needsBackfill = true;
+    }
+  }
+
+  // Backfill new quests and upgrades from defaults (add missing ones)
+  const { DEFAULT_QUESTS } = await import("../data/quests.js");
+  const { DEFAULT_UPGRADES } = await import("../data/upgrades.js");
+
+  for (const defaultQuest of DEFAULT_QUESTS) {
+    if (!state.quests.some((q) => q.id === defaultQuest.id)) {
+      state.quests.push(structuredClone(defaultQuest));
+      needsBackfill = true;
+    }
+  }
+
+  for (const defaultUpgrade of DEFAULT_UPGRADES) {
+    if (!state.upgrades.some((u) => u.id === defaultUpgrade.id)) {
+      state.upgrades.push(structuredClone(defaultUpgrade));
+      needsBackfill = true;
+    }
+  }
+
  const now = Date.now();

  const { offlineGold, offlineSeconds } = calculateOfflineGold(state, now);
@@ -29,6 +98,13 @@ gameRouter.get("/load", async (context) => {

  state.lastTickAt = now;

+  if (needsBackfill || offlineGold > 0) {
+    await prisma.gameState.update({
+      where: { discordId },
+      data: { state: state as object, updatedAt: now },
+    });
+  }
+
  return context.json({ state, offlineGold, offlineSeconds });
 });