diff --git a/apps/web/src/lib/catalog-ui.ts b/apps/web/src/lib/catalog-ui.ts
index 4189089..a88513f 100644
--- a/apps/web/src/lib/catalog-ui.ts
+++ b/apps/web/src/lib/catalog-ui.ts
@@ -14,17 +14,9 @@ export const GAME_ICON: Record<string, string> = {
   'davinci-code': '🔐',
   gostop: '🌸',
   marble: '🏙️',
-};
-
-/** Shown on the home screen so users know what's coming (docs/12-roadmap.md). */
-export const UPCOMING = ['뱅', '할리갈리'];
   bang: '🤠',
-};
-
-/** Shown on the home screen so users know what's coming (docs/12-roadmap.md). */
-export const UPCOMING = ['마작', '고스톱', '할리갈리'];
   'halli-galli': '🔔',
 };
 
 /** Shown on the home screen so users know what's coming (docs/12-roadmap.md). */
-export const UPCOMING = ['마작', '고스톱', '뱅'];
+export const UPCOMING = ['달무티', '보석 상인', '쿼리도', '라스베가스', '바퀴벌레 포커', '구십구', '도블', '그림 맞히기', '마피아'];
diff --git a/docs/12-roadmap.md b/docs/12-roadmap.md
index 97a95ee..1d2f5d2 100644
--- a/docs/12-roadmap.md
+++ b/docs/12-roadmap.md
@@ -46,9 +46,19 @@
 ## M5. 마작·고스톱
 - 리치 마작(4인, 3인), 점수 계산기 테스트(역·부 계산 사례 100개 이상), 초보 모드.
 - 고스톱/맞고.
+- **진행 결과(2026-10-05)**: 마작(4인 동풍전·반장전, 3인 산마, 초보 모드)·고스톱(맞고·3인·광팔기) 규칙 + 화면 완료.
+  마작 점수 계산 테스트 161(1~4판 × 20~110부 표 전체, 만관~더블 역만, 손패 계산 사례 약 60) + 규칙 77,
+  고스톱 규칙 58. 게임마다 무작위 플레이 1,000판(패·점수 보존, 비공개 정보 유출 없음, 시간 초과 행동 합법).
+  마작 울기 창은 남은 시간을 공개하지 않음(누가 울 수 있는지 드러나지 않게). 3인 최종 점수는 합 0 보정.
+  E2E: 마작 4인(PC 방장 + 휴대폰 3명) 첫 국 끝까지 → 다음 국 시작, 맞고 한 판(고·스톱 포함).
 
 ## M6. 뱅 + 실시간 반응 + 땅따먹기
 - 뱅(반응 창 처리), 할리갈리(서버 도착 순서 판정), 주사위 땅따먹기.
+- **진행 결과(2026-10-05)**: 세 게임 + 할리갈리 규칙 + 화면 완료. 규칙 테스트 뱅 62·할리갈리 46(+방 단위 서버 테스트)·땅따먹기 80,
+  게임마다 무작위 플레이 1,000판. 할리갈리는 같은 밀리초에 두 사람이 쳐도 서버에 먼저 도착한 사람만 인정(서버 테스트로 확인).
+  엔진에 선택 훅 `timeoutNotBefore` 추가(접속 끊긴 사람 차례에 타이머가 0ms로 반복 발동하던 문제 방지, 기존 게임 영향 없음).
+  뱅은 내 역할을 꾹 눌러야 보이게(옆 사람 훔쳐보기 방지). 땅따먹기 금액은 놀이용 포인트(P) 표기.
+  E2E: 뱅 4인 10턴, 할리갈리 3인 24번 뒤집기(맞는 종·틀린 종), 땅따먹기 15라운드 한 판 끝까지.
 
 ## M7. 보드게임카페 인기 게임
 - 달무티, 보석 상인, 쿼리도, 라스베가스, 바퀴벌레 포커, 구십구.
diff --git a/e2e/games.e2e.ts b/e2e/games.e2e.ts
index 6111699..d1d9937 100644
--- a/e2e/games.e2e.ts
+++ b/e2e/games.e2e.ts
@@ -203,6 +203,19 @@ async function gostopStep(p: Page, state: { go: number; stop: number; picks: num
   if (await lifted.count()) await lifted.click({ timeout: 1500 });
   state.plays++;
   return 'play';
+}
+
+/** 할리갈리: fruit totals of the face-up tops, read from the seat labels ("펼친 카드 딸기 3개"). */
+async function halliTotals(p: Page): Promise<Record<string, number>> {
+  const labels = await p.locator('.hg-seat').evaluateAll((els) => els.map((e) => e.getAttribute('aria-label') ?? ''));
+  const t: Record<string, number> = { 딸기: 0, 바나나: 0, 라임: 0, 자두: 0 };
+  for (const l of labels) {
+    const m = /펼친 카드 (딸기|바나나|라임|자두) (\d)개/.exec(l);
+    if (m) t[m[1]!]! += Number(m[2]);
+  }
+  return t;
+}
+
 /**
  * 주사위 땅따먹기: one UI step for whoever can act on `p` — answer a trade, sell, buy/build (or skip),
  * pick a space-travel square on the board, escape the island or roll. Returns the label pressed.
@@ -248,151 +261,6 @@ async function marbleStep(p: Page, stats: Record<string, number>): Promise<strin
 }
 
 const PLANS: Record<string, Plan> = {
-  gostop: {
-    // 맞고: PC host + phone guest, 1판. Real turns through the UI — hand cards (tap twice on the phone), floor-card choices,
-    // 흔들기/폭탄 sheets, one 고 and then 스톱 — until the hand ends (스톱 or 나가리) and the game result shows.
-    lobby: async (host) => {
-      await host.getByRole('group', { name: '판 수' }).getByRole('button', { name: '1판', exact: true }).click();
-      await host.getByRole('button', { name: '설정 저장' }).click();
-      await host.getByText(/^1판 · /).first().waitFor();
-    },
-    drive: async (pages) => {
-      const [host, guest] = pages as [Page, Page];
-      const state = { go: 0, stop: 0, picks: 0, plays: 0, sheets: 0 };
-      let shot = false;
-      const until = Date.now() + 240_000;
-      const over = async () => (await host.getByRole('dialog', { name: '게임 결과' }).count()) > 0;
-      while (Date.now() < until && !(await over())) {
-        let acted = false;
-        for (const p of pages) {
-          const did = await gostopStep(p, state).catch(() => null);
-          if (did) {
-            acted = true;
-            await p.waitForTimeout(250);
-            break;
-          }
-        }
-        if (state.plays >= 8 && !shot) {
-          shot = true;
-          await host.waitForTimeout(1500);
-          await host.screenshot({ path: join(SHOTS, 'gostop-mid-pc.png') });
-          await guest.screenshot({ path: join(SHOTS, 'gostop-mid-phone.png'), fullPage: true });
-          await guest.emulateMedia({ colorScheme: 'dark' });
-          await host.emulateMedia({ colorScheme: 'dark' });
-          await guest.screenshot({ path: join(SHOTS, 'gostop-mid-phone-dark.png'), fullPage: true });
-          await host.screenshot({ path: join(SHOTS, 'gostop-mid-pc-dark.png') });
-          await guest.emulateMedia({ colorScheme: 'light' });
-          await host.emulateMedia({ colorScheme: 'light' });
-        }
-        if (!acted) await host.waitForTimeout(150);
-      }
-      if (!(await over())) throw new Error(`hand did not end (${JSON.stringify(state)})`);
-      await guest.getByRole('dialog', { name: '게임 결과' }).waitFor();
-      await host.screenshot({ path: join(SHOTS, 'gostop-result-pc.png') });
-      await guest.screenshot({ path: join(SHOTS, 'gostop-result-phone.png') });
-      // Close the result sheet to see the round breakdown underneath.
-      await host.keyboard.press('Escape');
-      await host.getByText(/1판 결과/).first().waitFor();
-      await host.screenshot({ path: join(SHOTS, 'gostop-breakdown-pc.png') });
-      if (state.plays < 10) throw new Error(`only ${state.plays} cards were played`);
-      console.log(`  gostop: ${state.plays} plays, ${state.sheets} choice sheets (${state.picks} card picks), 고 ${state.go}, 스톱 ${state.stop}`);
-/** 할리갈리: fruit totals of the face-up tops, read from the seat labels ("펼친 카드 딸기 3개"). */
-async function halliTotals(p: Page): Promise<Record<string, number>> {
-  const labels = await p.locator('.hg-seat').evaluateAll((els) => els.map((e) => e.getAttribute('aria-label') ?? ''));
-  const t: Record<string, number> = { 딸기: 0, 바나나: 0, 라임: 0, 자두: 0 };
-  for (const l of labels) {
-    const m = /펼친 카드 (딸기|바나나|라임|자두) (\d)개/.exec(l);
-    if (m) t[m[1]!]! += Number(m[2]);
-  }
-  return t;
-}
-
-const PLANS: Record<string, Plan> = {
-  'halli-galli': {
-    // PC host + 2 phones. Real flips (Enter on PC, taps on phones); whenever some fruit totals exactly five a player
-    // rings the bell (PC: Space, phone: tap), plus at least one deliberate wrong bell. 24+ flips through the UI.
-    players: 3,
-    lobby: async (host) => {
-      await host.getByRole('group', { name: '뒤집기 제한 시간' }).getByRole('button', { name: '5초' }).click();
-      await host.getByRole('button', { name: '설정 저장' }).click();
-      await host.getByText(/뒤집기 5초/).first().waitFor();
-    },
-    drive: async (pages) => {
-      const [host, guest] = pages as [Page, Page, Page];
-      const myTurn = (p: Page) => p.evaluate(() => !!document.querySelector('.turn-status')?.textContent?.includes('내 차례예요'));
-      const ended = () => host.getByRole('dialog', { name: '게임 결과' }).count();
-      await host.locator('.hg-seat').first().waitFor();
-      // 3-second countdown first.
-      await host.waitForFunction(() => !document.querySelector('.hg-count'), null, { timeout: 8000 });
-      let flips = 0;
-      let rights = 0;
-      let wrongs = 0;
-      let lates = 0;
-      let shots = 0;
-      let ringer = 0;
-      const until = Date.now() + 150_000;
-      const bubble = (p: Page) => p.locator('.hg-bubble').first().innerText({ timeout: 2500 }).catch(() => '');
-      while (Date.now() < until && !(await ended()) && (flips < 24 || rights < 1 || wrongs < 1)) {
-        const totals = await halliTotals(host);
-        const five = Object.values(totals).includes(5);
-        const wantWrong = !five && wrongs === 0 && flips >= 4 && Object.values(totals).some((n) => n > 0);
-        if (five || wantWrong) {
-          const p = pages[ringer++ % pages.length]!;
-          const bell = p.locator('.hg-bell');
-          if (await bell.isEnabled().catch(() => false)) {
-            if (p === host) {
-              await host.evaluate(() => (document.activeElement as HTMLElement | null)?.blur());
-              await host.keyboard.press('Space');
-            } else await bell.tap();
-            const text = await bubble(p);
-            if (text.includes('땡')) rights++;
-            else if (text.includes('삐')) wrongs++;
-            else if (text.includes('늦었어요')) lates++;
-            if (shots === 0 && text) {
-              shots++;
-              await host.screenshot({ path: join(SHOTS, 'halli-galli-bell-pc.png') });
-              await guest.screenshot({ path: join(SHOTS, 'halli-galli-bell-phone.png') });
-            }
-            await host.waitForTimeout(400);
-            continue;
-          }
-        }
-        let flipped = false;
-        for (const p of pages) {
-          if (!(await myTurn(p))) continue;
-          const btn = p.getByRole('button', { name: '뒤집기', exact: true });
-          if (!(await btn.isEnabled().catch(() => false))) break;
-          const before = await p.locator('.hg-seat[data-me="true"] .hg-meta').innerText();
-          if (p === host) {
-            await host.evaluate(() => (document.activeElement as HTMLElement | null)?.blur());
-            await host.keyboard.press('Enter');
-          } else await btn.tap();
-          await p.waitForFunction((b) => document.querySelector('.hg-seat[data-me="true"] .hg-meta')?.textContent !== b, before, { timeout: 3000 }).catch(() => {});
-          flips++;
-          flipped = true;
-          break;
-        }
-        if (flips === 12 && flipped && shots < 2) {
-          shots = 2;
-          await host.waitForTimeout(300);
-          await host.screenshot({ path: join(SHOTS, 'halli-galli-mid-pc.png') });
-          await guest.screenshot({ path: join(SHOTS, 'halli-galli-mid-phone.png') });
-          await guest.emulateMedia({ colorScheme: 'dark' });
-          await guest.waitForTimeout(400); // let the theme transition finish
-          await guest.screenshot({ path: join(SHOTS, 'halli-galli-mid-phone-dark.png') });
-          await guest.emulateMedia({ colorScheme: 'light' });
-          await host.emulateMedia({ colorScheme: 'dark' });
-          await host.waitForTimeout(400);
-          await host.screenshot({ path: join(SHOTS, 'halli-galli-mid-pc-dark.png') });
-          await host.emulateMedia({ colorScheme: 'light' });
-        }
-        await host.waitForTimeout(flipped ? 650 : 120);
-      }
-      console.log(`  halli-galli: ${flips} UI flips, ${rights} correct bells, ${wrongs} wrong bells, ${lates} late`);
-      if (!(await ended()) && (flips < 20 || wrongs < 1)) throw new Error('not enough flips / bells');
-      if (rights < 1 && !(await ended())) throw new Error('no correct bell happened');
-    },
-  },
   rummikub: {
     // PC host + phone guest, first meld "없음" so hint plays happen early; 10 real turns through the UI.
     lobby: async (host) => {
@@ -436,7 +304,6 @@ const PLANS: Record<string, Plan> = {
           await guest.screenshot({ path: join(SHOTS, 'yut-mid-phone-dark.png') });
           await guest.emulateMedia({ colorScheme: 'light' });
         }
-        if (acted && !stats.toll && (await host.locator('.mb-log li', { hasText: /→.*통행료/ }).count())) stats.toll = 1;
         if (!acted) await host.waitForTimeout(120);
       }
       if (!(await over())) throw new Error(`game did not finish (${actions} UI actions)`);
@@ -444,59 +311,6 @@ const PLANS: Record<string, Plan> = {
       console.log(`  yut: finished after ${actions} UI actions`);
     },
   },
-  marble: {
-    // PC host + phone guest, 15 rounds (shortest limit) played through the UI to the result: roll, buy or
-    // build (skip when short), pay tolls, sell when short, space travel via a board square. Mid-game shots.
-    lobby: async (host) => {
-      await host.getByRole('group', { name: '라운드 제한' }).getByRole('button', { name: '15라운드' }).click();
-      await host.getByRole('group', { name: '시작 포인트' }).getByRole('button', { name: '200P' }).click();
-      await host.getByRole('button', { name: '설정 저장' }).click();
-      await host.getByText(/^15라운드 · 시작 200P/).first().waitFor();
-    },
-    drive: async (pages) => {
-      const [host, guest] = pages as [Page, Page];
-      const stats: Record<string, number> = {};
-      let actions = 0;
-      let shot = false;
-      const until = Date.now() + 420_000;
-      const over = () => host.getByRole('dialog', { name: '게임 결과' }).count();
-      while (Date.now() < until && !(await over())) {
-        let acted = false;
-        for (const p of pages) {
-          if (await marbleStep(p, stats)) {
-            acted = true;
-            actions++;
-            await p.waitForTimeout(80);
-            break;
-          }
-        }
-        if (actions >= 40 && !shot && (stats['사기'] ?? 0) >= 3) {
-          shot = true;
-          await host.waitForTimeout(1300);
-          await host.screenshot({ path: join(SHOTS, 'marble-mid-pc.png') });
-          await guest.screenshot({ path: join(SHOTS, 'marble-mid-phone.png') });
-          await guest.screenshot({ path: join(SHOTS, 'marble-mid-phone-full.png'), fullPage: true });
-          await host.emulateMedia({ colorScheme: 'dark' });
-          await guest.emulateMedia({ colorScheme: 'dark' });
-          await host.waitForTimeout(400); // let the button colour transitions settle
-          await host.screenshot({ path: join(SHOTS, 'marble-mid-pc-dark.png') });
-          await guest.screenshot({ path: join(SHOTS, 'marble-mid-phone-dark.png') });
-          await host.emulateMedia({ colorScheme: 'light' });
-          await guest.emulateMedia({ colorScheme: 'light' });
-        }
-        if (acted && !stats.toll && (await host.locator('.mb-log li', { hasText: /→.*통행료/ }).count())) stats.toll = 1;
-        if (!acted) await host.waitForTimeout(120);
-      }
-      if (!(await over())) throw new Error(`game did not finish (${actions} UI actions: ${JSON.stringify(stats)})`);
-      await guest.getByRole('dialog', { name: '게임 결과' }).waitFor();
-      await host.waitForTimeout(600); // result dialog fade-in
-      await host.screenshot({ path: join(SHOTS, 'marble-result-pc.png') });
-      await guest.screenshot({ path: join(SHOTS, 'marble-result-phone.png') });
-      const rolls = (stats['🎲 주사위 굴리기'] ?? 0) + (stats['🎲 한 번 더 굴리기'] ?? 0) + (stats['🎲 탈출 굴리기'] ?? 0);
-      if (rolls < 15 || !stats['사기']) throw new Error(`too few real turns: ${JSON.stringify(stats)}`);
-      console.log(`  marble: finished after ${actions} UI actions ${JSON.stringify(stats)}`);
-    },
-  },
   'one-card': {
     // 3 players, default 원카드: whoever has the turn plays a highlighted card (tap to lift, tap again to play,
     // pick a suit for 7) or draws; the 원카드 button is pressed whenever it lights up. 60 turns or until the game ends.
@@ -545,184 +359,6 @@ const PLANS: Record<string, Plan> = {
       console.log(`  one-card: ${turns} turns (${plays} plays, ${draws} draws)${finished ? ', game finished' : ''}`);
     },
   },
-  mahjong: {
-    // 4인 리치 마작 (PC host + 3 phones): whoever has the turn taps the right-most legal tile (lift) and presses
-    // the "… 버리기" button; claim windows are answered with 패스 (론/쯔모 when offered). Plays until the first hand
-    // ends (win or exhaustive draw, ~70 discards), checks the result screen on every device and confirms it.
-    players: 4,
-    drive: async (pages) => {
-      const statusOf = (p: Page) => p.locator('.turn-status').innerText().catch(() => '');
-      let discards = 0;
-      let passes = 0;
-      let wins = 0;
-      let results = 0;
-      const shotClaim = new Set<string>();
-      for (let t = 0; t < 4000 && discards < 100 && results < 1; t++) {
-        let acted = false;
-        for (const [pi, p] of pages.entries()) {
-          const status = await statusOf(p);
-          const win = p.getByRole('button', { name: /^(쯔모|론)!$/ });
-          if ((await win.count()) && (await win.first().isEnabled().catch(() => false))) {
-            await win.first().click({ timeout: 1000 }).catch(() => {});
-            wins++;
-            acted = true;
-            break;
-          }
-          const pass = p.getByRole('group', { name: '울기·론 선택' }).getByRole('button', { name: '패스' });
-          if (await pass.count()) {
-            const dev = pi === 0 ? 'pc' : 'phone';
-            if (!shotClaim.has(dev)) {
-              await p.screenshot({ path: join(SHOTS, `mahjong-3-claim-${dev}.png`) });
-              shotClaim.add(dev);
-            }
-            await pass.click({ timeout: 1000 }).catch(() => {});
-            passes++;
-            acted = true;
-            break;
-          }
-          const next = p.getByRole('button', { name: /^(다음 국으로|최종 결과 보기)$/ });
-          if ((await next.count()) && (await next.isEnabled().catch(() => false))) {
-            // The hand is over: every device shows the result, then everyone confirms → the next hand starts.
-            await pages[0]!.screenshot({ path: join(SHOTS, 'mahjong-4-result-pc.png') });
-            await pages[1]!.screenshot({ path: join(SHOTS, 'mahjong-4-result-phone.png'), fullPage: true });
-            for (const q of pages) {
-              await q.getByRole('region', { name: /결과$/ }).waitFor({ timeout: 5000 });
-              const b = q.getByRole('button', { name: /^(다음 국으로|최종 결과 보기)$/ });
-              if (await b.isEnabled().catch(() => false)) await b.click({ timeout: 1000 }).catch(() => {});
-            }
-            await pages[0]!.getByText(/^동1국|^동2국/).first().waitFor({ timeout: 10_000 });
-            results++;
-            acted = true;
-            break;
-          }
-          if (!status.includes('내 차례예요')) continue;
-          const tiles = p.locator('button.mj-htile[data-legal="true"]');
-          const n = await tiles.count();
-          if (!n) continue;
-          const tile = tiles.nth(n - 1);
-          await tile.click({ timeout: 1000 }).catch(() => {});
-          if (discards === 4 && pi > 0) await p.screenshot({ path: join(SHOTS, 'mahjong-2-selected-phone.png') });
-          const send = p.getByRole('button', { name: /버리기$/ });
-          if ((await send.count()) && (await send.isEnabled().catch(() => false))) await send.click({ timeout: 1000 }).catch(() => {});
-          await p.waitForFunction((s) => document.querySelector('.turn-status')?.textContent?.trim() !== s, status.trim(), { timeout: 5000 }).catch(() => {});
-          discards++;
-          acted = true;
-          break;
-        }
-        if (!acted) await pages[0]!.waitForTimeout(120);
-      }
-      if (results === 0) throw new Error(`no hand finished after ${discards} discards`);
-      // The next hand has started: the table and my hand are back on every screen.
-      for (const q of pages) await q.locator('.mj-table').waitFor({ timeout: 10_000 });
-      console.log(`  mahjong: ${discards} discards, ${passes} passes, ${wins} wins, ${results} hand finished → next hand started`);
-  bang: {
-    // PC host + 3 phone guests, reaction time 25s: real turns through the UI — draw, play usable cards
-    // (뱅! at a highlighted target → confirm, other untargeted cards by double tap), answer reaction
-    // sheets (빗나감!/맥주/결투/인디언!/잡화점), discard down to the hand limit, end the turn.
-    players: 4,
-    lobby: async (host) => {
-      await host.getByRole('group', { name: '반응 제한 시간' }).getByRole('button', { name: '25초' }).click();
-      await host.getByRole('button', { name: '설정 저장' }).click();
-      await host.getByText(/반응 25초/).first().waitFor();
-    },
-    drive: async (pages) => {
-      const stats = { turns: 0, bangs: 0, plays: 0, reactions: 0, discards: 0 };
-      let finished = false;
-      let shot = false;
-      let midShot = false;
-      const tryClick = (l: ReturnType<Page['locator']>) => l.click({ timeout: 1500 }).then(() => true, () => false);
-      /** One UI step on this page; true when something was pressed. */
-      const step = async (p: Page): Promise<boolean> => {
-        const modal = p.locator('.bg-modal');
-        if (await modal.count()) {
-          const store = modal.locator('button.bg-card');
-          const title = (await modal.locator('h2').innerText().catch(() => '')).trim();
-          if (title.startsWith('3장 중')) {
-            await store.nth(0).click();
-            await store.nth(1).click();
-            await modal.getByRole('button', { name: '이 2장 받기' }).click();
-          } else if (title.startsWith('잡화점')) await store.first().click();
-          else {
-            const use = modal.getByRole('button', { name: /(내기|마시기)$/ });
-            if (!(await use.count()) || !(await tryClick(use.first()))) {
-              if (!(await tryClick(modal.getByRole('button', { name: /^(포기하고 맞기|맞기|쓰러지기)/ }).first()))) return false;
-            }
-          }
-          stats.reactions++;
-          return true;
-        }
-        const draw = p.getByRole('button', { name: '카드 더미에서 2장 받기' });
-        if (await draw.count()) return tryClick(draw);
-        const discardBtn = p.getByRole('button', { name: /장 버리기$/ });
-        if (await discardBtn.count()) {
-          const need = Number((await p.locator('.bg-actions').innerText()).match(/버릴 카드 (\d+)장/)?.[1] ?? 0);
-          const cards = p.locator('.bg-me .bg-hand button.bg-card');
-          for (let i = 0; i < need; i++) await cards.nth(i).click();
-          await discardBtn.click();
-          stats.discards++;
-          return true;
-        }
-        const end = p.getByRole('button', { name: '턴 마치기' });
-        if (!(await end.count()) || !(await end.isEnabled())) return false;
-        // Shoot first (once per turn is enough), then other untargeted cards, then end the turn.
-        const bang = p.locator('.bg-me button.bg-card[data-kind="bang"][data-ok="true"]').first();
-        if (await bang.count()) {
-          await bang.click();
-          const target = p.locator('button.bg-seat[data-target="ok"]').first();
-          await target.waitFor({ timeout: 2000 });
-          await target.click();
-          const fire = p.getByRole('button', { name: /에게 뱅!$/ });
-          await fire.click();
-          stats.bangs++;
-          if (!shot) {
-            shot = true;
-            await p.waitForTimeout(400);
-            for (const [i, q] of pages.entries()) await q.screenshot({ path: join(SHOTS, `bang-3-shot-${i === 0 ? 'pc' : `phone${i}`}.png`) });
-          }
-          return true;
-        }
-        const simple = ['beer', 'stagecoach', 'wellsFargo', 'saloon', 'barrel', 'mustang', 'scope', 'schofield', 'remington', 'carabine', 'winchester', 'volcanic', 'indians', 'gatling', 'generalStore'];
-        for (const k of simple) {
-          const c = p.locator(`.bg-me button.bg-card[data-kind="${k}"][data-ok="true"]`).first();
-          if (!(await c.count())) continue;
-          await c.click();
-          await c.click();
-          stats.plays++;
-          return true;
-        }
-        await end.click();
-        stats.turns++;
-        return true;
-      };
-      const until = Date.now() + 240_000;
-      while (Date.now() < until && stats.turns < 10) {
-        if (await pages[0]!.getByRole('dialog', { name: '게임 결과' }).count()) {
-          finished = true;
-          break;
-        }
-        let acted = false;
-        for (const p of pages) {
-          if (await step(p)) {
-            acted = true;
-            await p.waitForTimeout(250);
-            break;
-          }
-        }
-        if (stats.turns >= 4 && !midShot) {
-          midShot = true;
-          await pages[0]!.screenshot({ path: join(SHOTS, 'bang-4-mid-pc.png') });
-          await pages[1]!.screenshot({ path: join(SHOTS, 'bang-4-mid-phone.png'), fullPage: true });
-          await pages[1]!.emulateMedia({ colorScheme: 'dark' });
-          await pages[1]!.screenshot({ path: join(SHOTS, 'bang-4-mid-phone-dark.png') });
-          await pages[1]!.emulateMedia({ colorScheme: 'light' });
-        }
-        if (!acted) await pages[0]!.waitForTimeout(150);
-      }
-      console.log(`  bang: ${stats.turns} turns, ${stats.bangs} 뱅!, ${stats.plays} other cards, ${stats.reactions} reactions, ${stats.discards} discards${finished ? ', game finished' : ''}`);
-      if (!finished && stats.turns < 8) throw new Error(`only ${stats.turns} turns were played`);
-      if (stats.bangs < 1) throw new Error('no 뱅! was played');
-    },
-  },
   'davinci-code': {
     // 2 players, default options (choose colours): both pick 2+2 start tiles, then several real turns:
     // draw from a pile, tap an opponent's hidden tile, pick a number, confirm; after a hit press "여기서 멈추기".
@@ -875,6 +511,374 @@ const PLANS: Record<string, Plan> = {
       ['ArrowUp', 'ArrowUp', 'Enter', 'ArrowUp', 'Enter'],
     ],
   },
+  mahjong: {
+    // 4인 리치 마작 (PC host + 3 phones): whoever has the turn taps the right-most legal tile (lift) and presses
+    // the "… 버리기" button; claim windows are answered with 패스 (론/쯔모 when offered). Plays until the first hand
+    // ends (win or exhaustive draw, ~70 discards), checks the result screen on every device and confirms it.
+    players: 4,
+    drive: async (pages) => {
+      const statusOf = (p: Page) => p.locator('.turn-status').innerText().catch(() => '');
+      let discards = 0;
+      let passes = 0;
+      let wins = 0;
+      let results = 0;
+      const shotClaim = new Set<string>();
+      for (let t = 0; t < 4000 && discards < 100 && results < 1; t++) {
+        let acted = false;
+        for (const [pi, p] of pages.entries()) {
+          const status = await statusOf(p);
+          const win = p.getByRole('button', { name: /^(쯔모|론)!$/ });
+          if ((await win.count()) && (await win.first().isEnabled().catch(() => false))) {
+            await win.first().click({ timeout: 1000 }).catch(() => {});
+            wins++;
+            acted = true;
+            break;
+          }
+          const pass = p.getByRole('group', { name: '울기·론 선택' }).getByRole('button', { name: '패스' });
+          if (await pass.count()) {
+            const dev = pi === 0 ? 'pc' : 'phone';
+            if (!shotClaim.has(dev)) {
+              await p.screenshot({ path: join(SHOTS, `mahjong-3-claim-${dev}.png`) });
+              shotClaim.add(dev);
+            }
+            await pass.click({ timeout: 1000 }).catch(() => {});
+            passes++;
+            acted = true;
+            break;
+          }
+          const next = p.getByRole('button', { name: /^(다음 국으로|최종 결과 보기)$/ });
+          if ((await next.count()) && (await next.isEnabled().catch(() => false))) {
+            // The hand is over: every device shows the result, then everyone confirms → the next hand starts.
+            await pages[0]!.screenshot({ path: join(SHOTS, 'mahjong-4-result-pc.png') });
+            await pages[1]!.screenshot({ path: join(SHOTS, 'mahjong-4-result-phone.png'), fullPage: true });
+            for (const q of pages) {
+              await q.getByRole('region', { name: /결과$/ }).waitFor({ timeout: 5000 });
+              const b = q.getByRole('button', { name: /^(다음 국으로|최종 결과 보기)$/ });
+              if (await b.isEnabled().catch(() => false)) await b.click({ timeout: 1000 }).catch(() => {});
+            }
+            await pages[0]!.getByText(/^동1국|^동2국/).first().waitFor({ timeout: 10_000 });
+            results++;
+            acted = true;
+            break;
+          }
+          if (!status.includes('내 차례예요')) continue;
+          const tiles = p.locator('button.mj-htile[data-legal="true"]');
+          const n = await tiles.count();
+          if (!n) continue;
+          const tile = tiles.nth(n - 1);
+          await tile.click({ timeout: 1000 }).catch(() => {});
+          if (discards === 4 && pi > 0) await p.screenshot({ path: join(SHOTS, 'mahjong-2-selected-phone.png') });
+          const send = p.getByRole('button', { name: /버리기$/ });
+          if ((await send.count()) && (await send.isEnabled().catch(() => false))) await send.click({ timeout: 1000 }).catch(() => {});
+          await p.waitForFunction((s) => document.querySelector('.turn-status')?.textContent?.trim() !== s, status.trim(), { timeout: 5000 }).catch(() => {});
+          discards++;
+          acted = true;
+          break;
+        }
+        if (!acted) await pages[0]!.waitForTimeout(120);
+      }
+      if (results === 0) throw new Error(`no hand finished after ${discards} discards`);
+      // The next hand has started: the table and my hand are back on every screen.
+      for (const q of pages) await q.locator('.mj-table').waitFor({ timeout: 10_000 });
+      console.log(`  mahjong: ${discards} discards, ${passes} passes, ${wins} wins, ${results} hand finished → next hand started`);
+    },
+  },
+  gostop: {
+    // 맞고: PC host + phone guest, 1판. Real turns through the UI — hand cards (tap twice on the phone), floor-card choices,
+    // 흔들기/폭탄 sheets, one 고 and then 스톱 — until the hand ends (스톱 or 나가리) and the game result shows.
+    lobby: async (host) => {
+      await host.getByRole('group', { name: '판 수' }).getByRole('button', { name: '1판', exact: true }).click();
+      await host.getByRole('button', { name: '설정 저장' }).click();
+      await host.getByText(/^1판 · /).first().waitFor();
+    },
+    drive: async (pages) => {
+      const [host, guest] = pages as [Page, Page];
+      const state = { go: 0, stop: 0, picks: 0, plays: 0, sheets: 0 };
+      let shot = false;
+      const until = Date.now() + 240_000;
+      const over = async () => (await host.getByRole('dialog', { name: '게임 결과' }).count()) > 0;
+      while (Date.now() < until && !(await over())) {
+        let acted = false;
+        for (const p of pages) {
+          const did = await gostopStep(p, state).catch(() => null);
+          if (did) {
+            acted = true;
+            await p.waitForTimeout(250);
+            break;
+          }
+        }
+        if (state.plays >= 8 && !shot) {
+          shot = true;
+          await host.waitForTimeout(1500);
+          await host.screenshot({ path: join(SHOTS, 'gostop-mid-pc.png') });
+          await guest.screenshot({ path: join(SHOTS, 'gostop-mid-phone.png'), fullPage: true });
+          await guest.emulateMedia({ colorScheme: 'dark' });
+          await host.emulateMedia({ colorScheme: 'dark' });
+          await guest.screenshot({ path: join(SHOTS, 'gostop-mid-phone-dark.png'), fullPage: true });
+          await host.screenshot({ path: join(SHOTS, 'gostop-mid-pc-dark.png') });
+          await guest.emulateMedia({ colorScheme: 'light' });
+          await host.emulateMedia({ colorScheme: 'light' });
+        }
+        if (!acted) await host.waitForTimeout(150);
+      }
+      if (!(await over())) throw new Error(`hand did not end (${JSON.stringify(state)})`);
+      await guest.getByRole('dialog', { name: '게임 결과' }).waitFor();
+      await host.screenshot({ path: join(SHOTS, 'gostop-result-pc.png') });
+      await guest.screenshot({ path: join(SHOTS, 'gostop-result-phone.png') });
+      // Close the result sheet to see the round breakdown underneath.
+      await host.keyboard.press('Escape');
+      await host.getByText(/1판 결과/).first().waitFor();
+      await host.screenshot({ path: join(SHOTS, 'gostop-breakdown-pc.png') });
+      if (state.plays < 10) throw new Error(`only ${state.plays} cards were played`);
+      console.log(`  gostop: ${state.plays} plays, ${state.sheets} choice sheets (${state.picks} card picks), 고 ${state.go}, 스톱 ${state.stop}`);
+    },
+  },
+  bang: {
+    // PC host + 3 phone guests, reaction time 25s: real turns through the UI — draw, play usable cards
+    // (뱅! at a highlighted target → confirm, other untargeted cards by double tap), answer reaction
+    // sheets (빗나감!/맥주/결투/인디언!/잡화점), discard down to the hand limit, end the turn.
+    players: 4,
+    lobby: async (host) => {
+      await host.getByRole('group', { name: '반응 제한 시간' }).getByRole('button', { name: '25초' }).click();
+      await host.getByRole('button', { name: '설정 저장' }).click();
+      await host.getByText(/반응 25초/).first().waitFor();
+    },
+    drive: async (pages) => {
+      const stats = { turns: 0, bangs: 0, plays: 0, reactions: 0, discards: 0 };
+      let finished = false;
+      let shot = false;
+      let midShot = false;
+      const tryClick = (l: ReturnType<Page['locator']>) => l.click({ timeout: 1500 }).then(() => true, () => false);
+      /** One UI step on this page; true when something was pressed. */
+      const step = async (p: Page): Promise<boolean> => {
+        const modal = p.locator('.bg-modal');
+        if (await modal.count()) {
+          const store = modal.locator('button.bg-card');
+          const title = (await modal.locator('h2').innerText().catch(() => '')).trim();
+          if (title.startsWith('3장 중')) {
+            await store.nth(0).click();
+            await store.nth(1).click();
+            await modal.getByRole('button', { name: '이 2장 받기' }).click();
+          } else if (title.startsWith('잡화점')) await store.first().click();
+          else {
+            const use = modal.getByRole('button', { name: /(내기|마시기)$/ });
+            if (!(await use.count()) || !(await tryClick(use.first()))) {
+              if (!(await tryClick(modal.getByRole('button', { name: /^(포기하고 맞기|맞기|쓰러지기)/ }).first()))) return false;
+            }
+          }
+          stats.reactions++;
+          return true;
+        }
+        const draw = p.getByRole('button', { name: '카드 더미에서 2장 받기' });
+        if (await draw.count()) return tryClick(draw);
+        const discardBtn = p.getByRole('button', { name: /장 버리기$/ });
+        if (await discardBtn.count()) {
+          const need = Number((await p.locator('.bg-actions').innerText()).match(/버릴 카드 (\d+)장/)?.[1] ?? 0);
+          const cards = p.locator('.bg-me .bg-hand button.bg-card');
+          for (let i = 0; i < need; i++) await cards.nth(i).click();
+          await discardBtn.click();
+          stats.discards++;
+          return true;
+        }
+        const end = p.getByRole('button', { name: '턴 마치기' });
+        if (!(await end.count()) || !(await end.isEnabled())) return false;
+        // Shoot first (once per turn is enough), then other untargeted cards, then end the turn.
+        const bang = p.locator('.bg-me button.bg-card[data-kind="bang"][data-ok="true"]').first();
+        if (await bang.count()) {
+          await bang.click();
+          const target = p.locator('button.bg-seat[data-target="ok"]').first();
+          await target.waitFor({ timeout: 2000 });
+          await target.click();
+          const fire = p.getByRole('button', { name: /에게 뱅!$/ });
+          await fire.click();
+          stats.bangs++;
+          if (!shot) {
+            shot = true;
+            await p.waitForTimeout(400);
+            for (const [i, q] of pages.entries()) await q.screenshot({ path: join(SHOTS, `bang-3-shot-${i === 0 ? 'pc' : `phone${i}`}.png`) });
+          }
+          return true;
+        }
+        const simple = ['beer', 'stagecoach', 'wellsFargo', 'saloon', 'barrel', 'mustang', 'scope', 'schofield', 'remington', 'carabine', 'winchester', 'volcanic', 'indians', 'gatling', 'generalStore'];
+        for (const k of simple) {
+          const c = p.locator(`.bg-me button.bg-card[data-kind="${k}"][data-ok="true"]`).first();
+          if (!(await c.count())) continue;
+          await c.click();
+          await c.click();
+          stats.plays++;
+          return true;
+        }
+        await end.click();
+        stats.turns++;
+        return true;
+      };
+      const until = Date.now() + 240_000;
+      while (Date.now() < until && stats.turns < 10) {
+        if (await pages[0]!.getByRole('dialog', { name: '게임 결과' }).count()) {
+          finished = true;
+          break;
+        }
+        let acted = false;
+        for (const p of pages) {
+          if (await step(p)) {
+            acted = true;
+            await p.waitForTimeout(250);
+            break;
+          }
+        }
+        if (stats.turns >= 4 && !midShot) {
+          midShot = true;
+          await pages[0]!.screenshot({ path: join(SHOTS, 'bang-4-mid-pc.png') });
+          await pages[1]!.screenshot({ path: join(SHOTS, 'bang-4-mid-phone.png'), fullPage: true });
+          await pages[1]!.emulateMedia({ colorScheme: 'dark' });
+          await pages[1]!.screenshot({ path: join(SHOTS, 'bang-4-mid-phone-dark.png') });
+          await pages[1]!.emulateMedia({ colorScheme: 'light' });
+        }
+        if (!acted) await pages[0]!.waitForTimeout(150);
+      }
+      console.log(`  bang: ${stats.turns} turns, ${stats.bangs} 뱅!, ${stats.plays} other cards, ${stats.reactions} reactions, ${stats.discards} discards${finished ? ', game finished' : ''}`);
+      if (!finished && stats.turns < 8) throw new Error(`only ${stats.turns} turns were played`);
+      if (stats.bangs < 1) throw new Error('no 뱅! was played');
+    },
+  },
+  'halli-galli': {
+    // PC host + 2 phones. Real flips (Enter on PC, taps on phones); whenever some fruit totals exactly five a player
+    // rings the bell (PC: Space, phone: tap), plus at least one deliberate wrong bell. 24+ flips through the UI.
+    players: 3,
+    lobby: async (host) => {
+      await host.getByRole('group', { name: '뒤집기 제한 시간' }).getByRole('button', { name: '5초' }).click();
+      await host.getByRole('button', { name: '설정 저장' }).click();
+      await host.getByText(/뒤집기 5초/).first().waitFor();
+    },
+    drive: async (pages) => {
+      const [host, guest] = pages as [Page, Page, Page];
+      const myTurn = (p: Page) => p.evaluate(() => !!document.querySelector('.turn-status')?.textContent?.includes('내 차례예요'));
+      const ended = () => host.getByRole('dialog', { name: '게임 결과' }).count();
+      await host.locator('.hg-seat').first().waitFor();
+      // 3-second countdown first.
+      await host.waitForFunction(() => !document.querySelector('.hg-count'), null, { timeout: 8000 });
+      let flips = 0;
+      let rights = 0;
+      let wrongs = 0;
+      let lates = 0;
+      let shots = 0;
+      let ringer = 0;
+      const until = Date.now() + 150_000;
+      const bubble = (p: Page) => p.locator('.hg-bubble').first().innerText({ timeout: 2500 }).catch(() => '');
+      while (Date.now() < until && !(await ended()) && (flips < 24 || rights < 1 || wrongs < 1)) {
+        const totals = await halliTotals(host);
+        const five = Object.values(totals).includes(5);
+        const wantWrong = !five && wrongs === 0 && flips >= 4 && Object.values(totals).some((n) => n > 0);
+        if (five || wantWrong) {
+          const p = pages[ringer++ % pages.length]!;
+          const bell = p.locator('.hg-bell');
+          if (await bell.isEnabled().catch(() => false)) {
+            if (p === host) {
+              await host.evaluate(() => (document.activeElement as HTMLElement | null)?.blur());
+              await host.keyboard.press('Space');
+            } else await bell.tap();
+            const text = await bubble(p);
+            if (text.includes('땡')) rights++;
+            else if (text.includes('삐')) wrongs++;
+            else if (text.includes('늦었어요')) lates++;
+            if (shots === 0 && text) {
+              shots++;
+              await host.screenshot({ path: join(SHOTS, 'halli-galli-bell-pc.png') });
+              await guest.screenshot({ path: join(SHOTS, 'halli-galli-bell-phone.png') });
+            }
+            await host.waitForTimeout(400);
+            continue;
+          }
+        }
+        let flipped = false;
+        for (const p of pages) {
+          if (!(await myTurn(p))) continue;
+          const btn = p.getByRole('button', { name: '뒤집기', exact: true });
+          if (!(await btn.isEnabled().catch(() => false))) break;
+          const before = await p.locator('.hg-seat[data-me="true"] .hg-meta').innerText();
+          if (p === host) {
+            await host.evaluate(() => (document.activeElement as HTMLElement | null)?.blur());
+            await host.keyboard.press('Enter');
+          } else await btn.tap();
+          await p.waitForFunction((b) => document.querySelector('.hg-seat[data-me="true"] .hg-meta')?.textContent !== b, before, { timeout: 3000 }).catch(() => {});
+          flips++;
+          flipped = true;
+          break;
+        }
+        if (flips === 12 && flipped && shots < 2) {
+          shots = 2;
+          await host.waitForTimeout(300);
+          await host.screenshot({ path: join(SHOTS, 'halli-galli-mid-pc.png') });
+          await guest.screenshot({ path: join(SHOTS, 'halli-galli-mid-phone.png') });
+          await guest.emulateMedia({ colorScheme: 'dark' });
+          await guest.waitForTimeout(400); // let the theme transition finish
+          await guest.screenshot({ path: join(SHOTS, 'halli-galli-mid-phone-dark.png') });
+          await guest.emulateMedia({ colorScheme: 'light' });
+          await host.emulateMedia({ colorScheme: 'dark' });
+          await host.waitForTimeout(400);
+          await host.screenshot({ path: join(SHOTS, 'halli-galli-mid-pc-dark.png') });
+          await host.emulateMedia({ colorScheme: 'light' });
+        }
+        await host.waitForTimeout(flipped ? 650 : 120);
+      }
+      console.log(`  halli-galli: ${flips} UI flips, ${rights} correct bells, ${wrongs} wrong bells, ${lates} late`);
+      if (!(await ended()) && (flips < 20 || wrongs < 1)) throw new Error('not enough flips / bells');
+      if (rights < 1 && !(await ended())) throw new Error('no correct bell happened');
+    },
+  },
+  marble: {
+    // PC host + phone guest, 15 rounds (shortest limit) played through the UI to the result: roll, buy or
+    // build (skip when short), pay tolls, sell when short, space travel via a board square. Mid-game shots.
+    lobby: async (host) => {
+      await host.getByRole('group', { name: '라운드 제한' }).getByRole('button', { name: '15라운드' }).click();
+      await host.getByRole('group', { name: '시작 포인트' }).getByRole('button', { name: '200P' }).click();
+      await host.getByRole('button', { name: '설정 저장' }).click();
+      await host.getByText(/^15라운드 · 시작 200P/).first().waitFor();
+    },
+    drive: async (pages) => {
+      const [host, guest] = pages as [Page, Page];
+      const stats: Record<string, number> = {};
+      let actions = 0;
+      let shot = false;
+      const until = Date.now() + 420_000;
+      const over = () => host.getByRole('dialog', { name: '게임 결과' }).count();
+      while (Date.now() < until && !(await over())) {
+        let acted = false;
+        for (const p of pages) {
+          if (await marbleStep(p, stats)) {
+            acted = true;
+            actions++;
+            await p.waitForTimeout(80);
+            break;
+          }
+        }
+        if (actions >= 40 && !shot && (stats['사기'] ?? 0) >= 3) {
+          shot = true;
+          await host.waitForTimeout(1300);
+          await host.screenshot({ path: join(SHOTS, 'marble-mid-pc.png') });
+          await guest.screenshot({ path: join(SHOTS, 'marble-mid-phone.png') });
+          await guest.screenshot({ path: join(SHOTS, 'marble-mid-phone-full.png'), fullPage: true });
+          await host.emulateMedia({ colorScheme: 'dark' });
+          await guest.emulateMedia({ colorScheme: 'dark' });
+          await host.waitForTimeout(400); // let the button colour transitions settle
+          await host.screenshot({ path: join(SHOTS, 'marble-mid-pc-dark.png') });
+          await guest.screenshot({ path: join(SHOTS, 'marble-mid-phone-dark.png') });
+          await host.emulateMedia({ colorScheme: 'light' });
+          await guest.emulateMedia({ colorScheme: 'light' });
+        }
+        if (acted && !stats.toll && (await host.locator('.mb-log li', { hasText: /→.*통행료/ }).count())) stats.toll = 1;
+        if (!acted) await host.waitForTimeout(120);
+      }
+      if (!(await over())) throw new Error(`game did not finish (${actions} UI actions: ${JSON.stringify(stats)})`);
+      await guest.getByRole('dialog', { name: '게임 결과' }).waitFor();
+      await host.waitForTimeout(600); // result dialog fade-in
+      await host.screenshot({ path: join(SHOTS, 'marble-result-pc.png') });
+      await guest.screenshot({ path: join(SHOTS, 'marble-result-phone.png') });
+      const rolls = (stats['🎲 주사위 굴리기'] ?? 0) + (stats['🎲 한 번 더 굴리기'] ?? 0) + (stats['🎲 탈출 굴리기'] ?? 0);
+      if (rolls < 15 || !stats['사기']) throw new Error(`too few real turns: ${JSON.stringify(stats)}`);
+      console.log(`  marble: finished after ${actions} UI actions ${JSON.stringify(stats)}`);
+    },
+  },
 };
 
 const games = process.argv.slice(2).length ? process.argv.slice(2) : Object.keys(PLANS);