diff --git a/cocoscreator_projects/scripts/new-game.mjs b/cocoscreator_projects/scripts/new-game.mjs
new file mode 100644
index 0000000..a19e2c8
--- /dev/null
+++ b/cocoscreator_projects/scripts/new-game.mjs
@@ -0,0 +1,40 @@
+#!/usr/bin/env node
+import { join } from 'node:path';
+import { pathToFileURL } from 'node:url';
+import { SEED_DIR, GAMES_DIR, FRAMEWORK_SRC } from './lib/paths.mjs';
+import { copySeed, setProjectIdentity, scaffoldGameAssets } from './lib/scaffold.mjs';
+import { ensureJunction } from './lib/junction.mjs';
+
+const NAME_RE = /^[a-z0-9][a-z0-9_-]*$/;
+
+// 新建一款子游戏工程。opts 可注入路径用于测试。
+export function newGame(name, opts = {}) {
+  const seedDir = opts.seedDir ?? SEED_DIR;
+  const gamesDir = opts.gamesDir ?? GAMES_DIR;
+  const frameworkSrc = opts.frameworkSrc ?? FRAMEWORK_SRC;
+
+  if (!name || !NAME_RE.test(name)) {
+    throw new Error(`非法子游戏名称: "${name}"（仅限小写字母/数字/-/_，且以字母数字开头）`);
+  }
+  const projectDir = join(gamesDir, name);
+
+  copySeed(seedDir, projectDir); // 目标已存在会抛错
+  setProjectIdentity(projectDir, name);
+  scaffoldGameAssets(projectDir, name);
+  const link = join(projectDir, 'assets', 'framework');
+  ensureJunction(link, frameworkSrc);
+
+  return { projectDir, link };
+}
+
+// CLI 入口
+if (import.meta.url === pathToFileURL(process.argv[1]).href) {
+  const name = process.argv[2];
+  if (!name) {
+    console.error('用法: npm run new-game <name>');
+    process.exit(1);
+  }
+  const { projectDir } = newGame(name);
+  console.log(`已创建子游戏工程: ${projectDir}`);
+  console.log(`下一步: 用 Cocos Creator 打开该目录`);
+}
diff --git a/cocoscreator_projects/scripts/test/new-game.test.mjs b/cocoscreator_projects/scripts/test/new-game.test.mjs
new file mode 100644
index 0000000..5113703
--- /dev/null
+++ b/cocoscreator_projects/scripts/test/new-game.test.mjs
@@ -0,0 +1,50 @@
+import { test } from 'node:test';
+import assert from 'node:assert/strict';
+import { join } from 'node:path';
+import { existsSync, readFileSync } from 'node:fs';
+import { makeTempMonorepo, makeSeed, cleanup } from './helpers.mjs';
+import { newGame } from '../new-game.mjs';
+import { isLink } from '../lib/junction.mjs';
+
+test('newGame 生成工程：改身份 + 挂 framework junction + 铺 game 骨架', () => {
+  const mono = makeTempMonorepo();
+  try {
+    const seed = makeSeed(mono.root);
+    const result = newGame('doudizhu', { seedDir: seed, gamesDir: mono.games, frameworkSrc: mono.framework });
+    const dest = join(mono.games, 'doudizhu');
+    assert.equal(result.projectDir, dest);
+    const pkg = JSON.parse(readFileSync(join(dest, 'package.json'), 'utf8'));
+    assert.equal(pkg.name, 'doudizhu');
+    assert.notEqual(pkg.uuid, 'seed-uuid');
+    const link = join(dest, 'assets', 'framework');
+    assert.ok(isLink(link));
+    assert.equal(readFileSync(join(link, 'README.md'), 'utf8'), '# framework src\n');
+    assert.ok(existsSync(join(dest, 'assets', 'game', 'GameModule.ts')));
+  } finally {
+    cleanup(mono.root);
+  }
+});
+
+test('newGame 拒绝重名工程', () => {
+  const mono = makeTempMonorepo();
+  try {
+    const seed = makeSeed(mono.root);
+    const opts = { seedDir: seed, gamesDir: mono.games, frameworkSrc: mono.framework };
+    newGame('doudizhu', opts);
+    assert.throws(() => newGame('doudizhu', opts), /已存在/);
+  } finally {
+    cleanup(mono.root);
+  }
+});
+
+test('newGame 校验名称非空且合法', () => {
+  const mono = makeTempMonorepo();
+  try {
+    const seed = makeSeed(mono.root);
+    const opts = { seedDir: seed, gamesDir: mono.games, frameworkSrc: mono.framework };
+    assert.throws(() => newGame('', opts), /名称/);
+    assert.throws(() => newGame('Bad Name!', opts), /名称/);
+  } finally {
+    cleanup(mono.root);
+  }
+});