diff --git a/src/samples/regicide/commands/index.ts b/src/samples/regicide/commands/index.ts
new file mode 100644
index 0000000..9f614b9
--- /dev/null
+++ b/src/samples/regicide/commands/index.ts
@@ -0,0 +1,107 @@
+import {createGameCommandRegistry} from "@/core/game";
+import {RegicideState} from "@/samples/regicide/state";
+
+export const registry = createGameCommandRegistry<RegicideState>();
+
+/**
+ * 打出一张牌
+ */
+const playCmd = registry.register({
+    schema: 'play <player:string> <cardId:string>',
+    run: async (game, player, cardId) => {
+        const state = game.value;
+        const card = state.cards[cardId];
+
+        if (!card) {
+            return {success: false, error: `卡牌 ${cardId} 不存在`};
+        }
+
+        // 检查卡牌是否在玩家手牌中
+        const playerHand = state.playerHands[player as keyof typeof state.playerHands];
+        if (!playerHand || !playerHand.includes(cardId)) {
+            return {success: false, error: `卡牌 ${cardId} 不在玩家 ${player} 的手牌中`};
+        }
+
+        // 检查是否有当前敌人
+        if (!state.currentEnemy) {
+            return {success: false, error: '没有活跃的敌人'};
+        }
+
+        // 计算伤害（基础伤害为卡牌面值）
+        let damage = card.value;
+
+        // TODO: 花色能力 - 梅花双倍伤害
+        // if (card.suit === 'clubs') {
+        //     damage *= 2;
+        // }
+
+        // TODO: A牌配合机制 - 如果card.rank === 'A'，可以额外打出一张牌
+
+        // 对敌人造成伤害
+        game.produce(state => {
+            state.currentEnemy!.hp -= damage;
+
+            // 从手牌移除卡牌
+            const hand = state.playerHands[player as keyof typeof state.playerHands];
+            const cardIndex = hand.indexOf(cardId);
+            if (cardIndex !== -1) {
+                hand.splice(cardIndex, 1);
+            }
+
+            // 将卡牌移到弃牌堆
+            state.cards[cardId].regionId = 'discardPile';
+
+            // TODO: 触发花色能力
+            // TODO: 检查敌人是否被击败
+        });
+
+        return {success: true, result: {damage, enemyHp: state.currentEnemy.hp}};
+    }
+});
+
+/**
+ * 让过（不出牌）
+ */
+const passCmd = registry.register({
+    schema: 'pass <player:string>',
+    run: async (game, player) => {
+        const state = game.value;
+
+        // 即使让过，也会受到敌人反击
+        // TODO: 实现反击逻辑
+
+        return {success: true, result: {message: `${player} 让过`}};
+    }
+});
+
+/**
+ * 检查敌人是否被击败
+ */
+const checkEnemyDefeatedCmd = registry.register({
+    schema: 'check-enemy-defeated',
+    run: async (game) => {
+        const state = game.value;
+
+        if (!state.currentEnemy) {
+            return {success: false, error: '没有活跃的敌人'};
+        }
+
+        const isDefeated = state.currentEnemy.hp <= 0;
+
+        if (isDefeated) {
+            // 敌人被击败，移到弃牌堆
+            game.produce(state => {
+                // TODO: 将当前敌人移到弃牌堆
+                // TODO: 翻开下一个敌人
+            });
+        }
+
+        return {success: true, result: {isDefeated, enemy: state.currentEnemy}};
+    }
+});
+
+export {
+    playCmd as play,
+    passCmd as pass,
+    checkEnemyDefeatedCmd as checkEnemyDefeated,
+};
diff --git a/src/samples/regicide/constants.ts b/src/samples/regicide/constants.ts
new file mode 100644
index 0000000..c650099
--- /dev/null
+++ b/src/samples/regicide/constants.ts
@@ -0,0 +1,36 @@
+import {CardRank, SuitType} from "@/samples/regicide/types";
+
+// 敌人总数
+export const ENEMY_COUNT = 12;
+
+// 初始手牌数
+export const INITIAL_HAND_SIZE = 6;
+
+// 卡牌面值映射
+export const CARD_VALUES: Record<CardRank, number> = {
+    'A': 1,
+    '2': 2,
+    '3': 3,
+    '4': 4,
+    '5': 5,
+    '6': 6,
+    '7': 7,
+    '8': 8,
+    '9': 9,
+    '10': 10,
+    'J': 10,
+    'Q': 15,
+    'K': 20,
+};
+
+// 所有花色
+export const ALL_SUITS: SuitType[] = ['spades', 'hearts', 'diamonds', 'clubs'];
+
+// 所有牌面值（不含大小王）
+export const ALL_RANKS: CardRank[] = ['A', '2', '3', '4', '5', '6', '7', '8', '9', '10', 'J', 'Q', 'K'];
+
+// 人头牌（J/Q/K）
+export const FACE_CARDS: CardRank[] = ['J', 'Q', 'K'];
+
+// 数字牌（A-10）
+export const NUMBER_CARDS: CardRank[] = ['A', '2', '3', '4', '5', '6', '7', '8', '9', '10'];
diff --git a/src/samples/regicide/index.ts b/src/samples/regicide/index.ts
new file mode 100644
index 0000000..a150c29
--- /dev/null
+++ b/src/samples/regicide/index.ts
@@ -0,0 +1,52 @@
+// Types
+export type {
+    SuitType,
+    CardRank,
+    PlayerType,
+    RegionType,
+    RegicideCardMeta,
+    RegicideCard,
+    Enemy,
+    GamePhase
+} from './types';
+
+// Constants
+export {
+    ENEMY_COUNT,
+    INITIAL_HAND_SIZE,
+    CARD_VALUES,
+    ALL_SUITS,
+    ALL_RANKS,
+    FACE_CARDS,
+    NUMBER_CARDS
+} from './constants';
+
+// State
+export {
+    createInitialState,
+    type RegicideState
+} from './state';
+
+// Prompts
+export {prompts} from './prompts';
+
+// Commands
+export {
+    registry,
+    play as playCmd,
+    pass as passCmd,
+    checkEnemyDefeated as checkEnemyDefeatedCmd
+} from './commands';
+
+// Utils
+export {
+    getCardValue,
+    createCard,
+    createEnemy,
+    createAllCards,
+    buildEnemyDeck,
+    buildTavernDeck,
+    drawFromDeck,
+    isEnemyDefeated,
+    getPlayerHandRegionId
+} from './utils';
diff --git a/src/samples/regicide/prompts.ts b/src/samples/regicide/prompts.ts
new file mode 100644
index 0000000..56ad565
--- /dev/null
+++ b/src/samples/regicide/prompts.ts
@@ -0,0 +1,17 @@
+import {createPromptDef} from "@/core/game";
+import {PlayerType} from "@/samples/regicide/types";
+
+export const prompts = {
+    playCard: createPromptDef<[PlayerType, string]>(
+        'play <player:string> <cardId:string>',
+        '选择要打出的卡牌'
+    ),
+    pass: createPromptDef<[PlayerType]>(
+        'pass <player:string>',
+        '让过不出牌'
+    ),
+    discard: createPromptDef<[PlayerType, string[]]>(
+        'discard <player:string> <cardIds:string[]>',
+        '选择要弃掉的卡牌'
+    ),
+};
diff --git a/src/samples/regicide/state.ts b/src/samples/regicide/state.ts
new file mode 100644
index 0000000..743830b
--- /dev/null
+++ b/src/samples/regicide/state.ts
@@ -0,0 +1,38 @@
+import {createRegion, Region} from "@/core/region";
+import {Enemy, GamePhase, PlayerType, RegionType} from "@/samples/regicide/types";
+import {RegicideCard} from "@/samples/regicide/types";
+import {INITIAL_HAND_SIZE} from "@/samples/regicide/constants";
+
+export function createInitialState() {
+    const regions: Record<RegionType, Region> = {
+        enemyDeck: createRegion('enemyDeck', []),
+        tavernDeck: createRegion('tavernDeck', []),
+        discardPile: createRegion('discardPile', []),
+        currentEnemy: createRegion('currentEnemy', []),
+        hand_player1: createRegion('hand_player1', []),
+        hand_player2: createRegion('hand_player2', []),
+        hand_player3: createRegion('hand_player3', []),
+        hand_player4: createRegion('hand_player4', []),
+    };
+
+    const playerHands: Record<PlayerType, string[]> = {
+        player1: [],
+        player2: [],
+        player3: [],
+        player4: [],
+    };
+
+    return {
+        regions,
+        cards: {} as Record<string, RegicideCard>,
+        playerHands,
+        currentPlayerIndex: 0,
+        playerCount: 1,
+        currentEnemy: null as Enemy | null,
+        enemyDeck: [] as Enemy[],
+        phase: 'playing' as GamePhase,
+        winner: null as boolean | null,
+    };
+}
+
+export type RegicideState = ReturnType<typeof createInitialState>;
diff --git a/src/samples/regicide/types.ts b/src/samples/regicide/types.ts
new file mode 100644
index 0000000..a841f22
--- /dev/null
+++ b/src/samples/regicide/types.ts
@@ -0,0 +1,44 @@
+import {Part} from "@/core/part";
+
+// 花色类型
+export type SuitType = 'spades' | 'hearts' | 'diamonds' | 'clubs';
+
+// 牌面值
+export type CardRank = 'A' | '2' | '3' | '4' | '5' | '6' | '7' | '8' | '9' | '10' | 'J' | 'Q' | 'K';
+
+// 玩家类型（1-4人合作）
+export type PlayerType = 'player1' | 'player2' | 'player3' | 'player4';
+
+// 区域类型
+export type RegionType =
+    | 'enemyDeck'    // 敌人牌堆
+    | 'tavernDeck'   // 酒馆牌堆
+    | 'discardPile'  // 弃牌堆
+    | 'currentEnemy' // 当前敌人
+    | 'hand_player1'
+    | 'hand_player2'
+    | 'hand_player3'
+    | 'hand_player4';
+
+// 卡牌元数据
+export type RegicideCardMeta = {
+    suit: SuitType;
+    rank: CardRank;
+    value: number;  // 卡牌面值
+};
+
+// 卡牌部件类型
+export type RegicideCard = Part<RegicideCardMeta>;
+
+// 敌人类型
+export type Enemy = {
+    id: string;
+    rank: CardRank;
+    suit: SuitType;
+    value: number;      // 敌人面值（即攻击力）
+    hp: number;         // 当前生命值
+    maxHp: number;      // 最大生命值（面值的2倍）
+};
+
+// 游戏阶段
+export type GamePhase = 'playing' | 'victory' | 'defeat';
diff --git a/src/samples/regicide/utils.ts b/src/samples/regicide/utils.ts
new file mode 100644
index 0000000..baea100
--- /dev/null
+++ b/src/samples/regicide/utils.ts
@@ -0,0 +1,132 @@
+import {ALL_RANKS, ALL_SUITS, CARD_VALUES, ENEMY_COUNT, FACE_CARDS} from "@/samples/regicide/constants";
+import {CardRank, Enemy, RegicideCard, SuitType} from "@/samples/regicide/types";
+import {RNG} from "@/utils/rng";
+
+/**
+ * 获取卡牌面值
+ */
+export function getCardValue(rank: CardRank): number {
+    return CARD_VALUES[rank];
+}
+
+/**
+ * 创建卡牌部件
+ */
+export function createCard(id: string, suit: SuitType, rank: CardRank): RegicideCard {
+    return {
+        id,
+        regionId: '',
+        position: [],
+        suit,
+        rank,
+        value: getCardValue(rank),
+    };
+}
+
+/**
+ * 创建敌人
+ */
+export function createEnemy(id: string, rank: CardRank, suit: SuitType): Enemy {
+    const value = getCardValue(rank);
+    return {
+        id,
+        rank,
+        suit,
+        value,
+        hp: value * 2,
+        maxHp: value * 2,
+    };
+}
+
+/**
+ * 生成完整卡牌列表（52张，不含大小王）
+ */
+export function createAllCards(): Record<string, RegicideCard> {
+    const cards: Record<string, RegicideCard> = {};
+
+    for (const suit of ALL_SUITS) {
+        for (const rank of ALL_RANKS) {
+            const id = `${suit}_${rank}`;
+            cards[id] = createCard(id, suit, rank);
+        }
+    }
+
+    return cards;
+}
+
+/**
+ * 构建敌人牌堆（J/Q/K 共12张）
+ * 规则：4张K在最下，4张Q在中间，4张J在最上
+ */
+export function buildEnemyDeck(rng: RNG): Enemy[] {
+    const enemies: Enemy[] = [];
+    let idCounter = 0;
+
+    // 创建所有J/Q/K敌人
+    for (const rank of FACE_CARDS) {
+        for (const suit of ALL_SUITS) {
+            const id = `enemy_${idCounter++}`;
+            enemies.push(createEnemy(id, rank, suit));
+        }
+    }
+
+    // 分离J、Q、K
+    const jEnemies = enemies.filter(e => e.rank === 'J');
+    const qEnemies = enemies.filter(e => e.rank === 'Q');
+    const kEnemies = enemies.filter(e => e.rank === 'K');
+
+    // 分别洗牌
+    shuffleArray(jEnemies, rng);
+    shuffleArray(qEnemies, rng);
+    shuffleArray(kEnemies, rng);
+
+    // J在最上（先遇到），Q在中间，K在最下
+    return [...jEnemies, ...qEnemies, ...kEnemies];
+}
+
+/**
+ * 构建酒馆牌堆（移除J/Q/K后的剩余牌）
+ */
+export function buildTavernDeck(rng: RNG): RegicideCard[] {
+    const allCards = createAllCards();
+    const numberCards = Object.values(allCards).filter(card => !FACE_CARDS.includes(card.rank));
+
+    shuffleArray(numberCards, rng);
+
+    return numberCards;
+}
+
+/**
+ * 洗牌辅助函数
+ */
+function shuffleArray<T>(array: T[], rng: RNG): void {
+    for (let i = array.length - 1; i > 0; i--) {
+        const j = rng.nextInt(i + 1);
+        [array[i], array[j]] = [array[j], array[i]];
+    }
+}
+
+/**
+ * 从牌堆抽牌
+ */
+export function drawFromDeck(
+    deck: RegicideCard[],
+    count: number
+): RegicideCard[] {
+    const drawn = deck.splice(0, count);
+    return drawn;
+}
+
+/**
+ * 检查敌人是否被击败
+ */
+export function isEnemyDefeated(enemy: Enemy | null): boolean {
+    return enemy !== null && enemy.hp <= 0;
+}
+
+/**
+ * 获取当前玩家手牌区域ID
+ */
+export function getPlayerHandRegionId(playerId: string): string {
+    return `hand_${playerId}`;
+}