diff --git a/packages/boop-game/src/scenes/GameScene.ts b/packages/boop-game/src/scenes/GameScene.ts
index 944b0fd..8a55593 100644
--- a/packages/boop-game/src/scenes/GameScene.ts
+++ b/packages/boop-game/src/scenes/GameScene.ts
@@ -6,12 +6,14 @@ import { createPieceSpawner } from './PieceSpawner';
 import { SupplyUI } from './SupplyUI';
 import { PieceTypeSelector } from './PieceTypeSelector';
 import { WinnerOverlay } from './WinnerOverlay';
+import { StartOverlay } from './StartOverlay';
 
 export class GameScene extends GameHostScene<BoopState> {
   private boardRenderer!: BoardRenderer;
   private supplyUI!: SupplyUI;
   private pieceTypeSelector!: PieceTypeSelector;
   private winnerOverlay!: WinnerOverlay;
+  private startOverlay!: StartOverlay;
 
   constructor() {
     super('GameScene');
@@ -25,6 +27,7 @@ export class GameScene extends GameHostScene<BoopState> {
     this.supplyUI = new SupplyUI(this);
     this.pieceTypeSelector = new PieceTypeSelector(this);
     this.winnerOverlay = new WinnerOverlay(this, () => this.restartGame());
+    this.startOverlay = new StartOverlay(this, () => this.startGame());
 
     // 设置棋子生成器
     this.disposables.add(createPieceSpawner(this));
@@ -33,10 +36,20 @@ export class GameScene extends GameHostScene<BoopState> {
     this.boardRenderer.setupInput(
       () => this.state,
       (row, col) => this.handleCellClick(row, col),
-      () => !!this.state.winner
+      () => this.gameHost.status.value !== 'running' || !!this.state.winner
     );
 
-    // 监听状态变化
+    // 监听游戏状态变化
+    this.addEffect(() => {
+      const status = this.gameHost.status.value;
+      if (status === 'running') {
+        this.startOverlay.hide();
+      } else if (status === 'created') {
+        this.startOverlay.show();
+      }
+    });
+
+    // 监听胜负状态
     this.addEffect(() => {
       const winner = this.state.winner;
       if (winner) {
@@ -52,9 +65,6 @@ export class GameScene extends GameHostScene<BoopState> {
       this.supplyUI.update(this.state);
       this.pieceTypeSelector.update(this.state);
     });
-
-    // 设置棋子类型选择器回调
-    // 可以在这里添加类型改变时的额外逻辑
   }
 
   private handleCellClick(row: number, col: number): void {
@@ -66,6 +76,10 @@ export class GameScene extends GameHostScene<BoopState> {
     }
   }
 
+  private startGame(): void {
+    this.gameHost.setup('setup');
+  }
+
   private restartGame(): void {
     this.gameHost.setup('setup');
   }
diff --git a/packages/boop-game/src/scenes/StartOverlay.ts b/packages/boop-game/src/scenes/StartOverlay.ts
new file mode 100644
index 0000000..6ba2b05
--- /dev/null
+++ b/packages/boop-game/src/scenes/StartOverlay.ts
@@ -0,0 +1,126 @@
+import Phaser from 'phaser';
+import { BOARD_OFFSET, CELL_SIZE, BOARD_SIZE } from './BoardRenderer';
+
+export class StartOverlay {
+  private overlay?: Phaser.GameObjects.Container;
+  private onStartCallback?: () => void;
+
+  constructor(
+    private scene: Phaser.Scene,
+    onStart: () => void
+  ) {
+    this.onStartCallback = onStart;
+    this.show();
+  }
+
+  show(): void {
+    if (this.overlay) {
+      this.overlay.destroy();
+    }
+
+    this.overlay = this.scene.add.container();
+
+    // 背景遮罩
+    const bg = this.scene.add.rectangle(
+      BOARD_OFFSET.x + (BOARD_SIZE * CELL_SIZE) / 2,
+      BOARD_OFFSET.y + (BOARD_SIZE * CELL_SIZE) / 2,
+      BOARD_SIZE * CELL_SIZE + 200,
+      BOARD_SIZE * CELL_SIZE + 200,
+      0x000000,
+      0.7,
+    );
+
+    this.overlay.add(bg);
+
+    // 游戏标题
+    const titleText = this.scene.add.text(
+      BOARD_OFFSET.x + (BOARD_SIZE * CELL_SIZE) / 2,
+      BOARD_OFFSET.y + (BOARD_SIZE * CELL_SIZE) / 2 - 80,
+      '🐱 BOOP 🐾',
+      {
+        fontSize: '60px',
+        fontFamily: 'Arial',
+        color: '#fbbf24',
+        fontStyle: 'bold',
+      },
+    ).setOrigin(0.5);
+
+    this.overlay.add(titleText);
+
+    // 游戏说明
+    const rulesText = this.scene.add.text(
+      BOARD_OFFSET.x + (BOARD_SIZE * CELL_SIZE) / 2,
+      BOARD_OFFSET.y + (BOARD_SIZE * CELL_SIZE) / 2 - 10,
+      '将小猫或大猫放在棋盘上\n推动周围的小猫\n先连成3个猫的玩家获胜！',
+      {
+        fontSize: '20px',
+        fontFamily: 'Arial',
+        color: '#e5e7eb',
+        align: 'center',
+        lineSpacing: 10,
+      },
+    ).setOrigin(0.5);
+
+    this.overlay.add(rulesText);
+
+    // 开始按钮
+    const buttonY = BOARD_OFFSET.y + (BOARD_SIZE * CELL_SIZE) / 2 + 80;
+    const startButton = this.scene.add.container(
+      BOARD_OFFSET.x + (BOARD_SIZE * CELL_SIZE) / 2,
+      buttonY
+    );
+
+    const buttonBg = this.scene.add.rectangle(0, 0, 200, 60, 0xfbbf24)
+      .setStrokeStyle(3, 0xf59e0b)
+      .setInteractive({ useHandCursor: true });
+
+    const buttonText = this.scene.add.text(0, 0, '开始游戏', {
+      fontSize: '24px',
+      fontFamily: 'Arial',
+      color: '#1f2937',
+      fontStyle: 'bold',
+    }).setOrigin(0.5);
+
+    startButton.add([buttonBg, buttonText]);
+    this.overlay.add(startButton);
+
+    // 按钮交互效果
+    buttonBg.on('pointerover', () => {
+      buttonBg.setFillStyle(0xfcd34d);
+    });
+
+    buttonBg.on('pointerout', () => {
+      buttonBg.setFillStyle(0xfbbf24);
+    });
+
+    buttonBg.on('pointerdown', () => {
+      buttonBg.setFillStyle(0xf59e0b);
+    });
+
+    buttonBg.on('pointerup', () => {
+      buttonBg.setFillStyle(0xfcd34d);
+      this.onStartCallback?.();
+    });
+
+    // 标题呼吸动画
+    this.scene.tweens.add({
+      targets: titleText,
+      scale: 1.1,
+      duration: 1000,
+      yoyo: true,
+      repeat: -1,
+      ease: 'Sine.easeInOut',
+    });
+  }
+
+  hide(): void {
+    if (this.overlay) {
+      this.overlay.destroy();
+      this.overlay = undefined;
+    }
+  }
+
+  destroy(): void {
+    this.hide();
+  }
+}