オフラインゲーム集 あそびば
An iPhone collection of 32 classic card, board and puzzle games that all work offline, run by Claude Code as its “CEO”.
Links go to the official store or developer page. Last verified Nov 3, 2026.
Where to play
Every platform this game is on. Links are checked against official sources; we never host or mirror games.
- View on the App StoreApp StoreReleasedFree
Install from Apple's App Store on an iPhone or iPad.
Mobile · Official link verified Nov 3, 2026.
About オフラインゲーム集 あそびば
A free iPhone and iPad app that bundles 32 games and needs no connection or account: card games such as Daifugo, Old Maid, Hearts, poker, blackjack, hanafuda koi-koi and three kinds of solitaire; board games against the computer including shogi, othello, go, chess, gomoku and four-player mahjong; puzzles such as number place, 2048, minesweeper and mahjong solitaire; and original mini-games in an “ojisan” series, among them a side-scrolling bicycle run and a home-run derby with weekly Game Center rankings. Progress resumes where you left off, and a records screen collects your personal bests. It shows banner ads, and full-screen video ads only when you choose to watch one, for example to take back a move. The solo developer says the app is vibe-coded and that humans write almost no code: most of the Swift code, tests, CI settings and operations scripts are written and merged by AI. Since August 2026 Claude Code has run development as the “CEO”, picking up approved issues every three minutes, while the developer, as “chairman”, approves issues, tests builds and decides App Store submissions. It has had Japanese and English since October 2026.
How it was built
VerifiedThe developer's Zenn article opens with a disclosure: the app is vibe-coded and humans write almost no code; most of the Swift code, tests, CI settings and operations scripts are written and merged by AI. Since 10 Aug 2026 Claude Code runs development as the “CEO”: a macOS launchd job wakes it every three minutes, and when there is work it claims an approved issue, implements it in its own worktree, opens a pull request and merges it once CI passes and review comments are resolved, with a separate agent checking non-trivial changes. Subagents and scheduled jobs handle audits, issue planning and research, using different Claude models by difficulty. The human (“chairman”) approves issues, tests TestFlight builds on a device and decides App Store submissions. The article does not say which tool built the app before the Claude Code pipeline started (first commit 17 Jun, first release 25 Jun 2026).
An agent-run pipeline: written rules (a “charter” in the repository) give the human three checkpoints, approving issues, checking TestFlight builds and deciding App Store submissions, while Claude Code sessions and scripts do the rest, including merges. When the same mistake happened twice the developer turned the rule into a machine check, for example a merge-blocking hold label and hooks that block destructive git commands. Per the article, by 15 Oct 2026 the project had 3,925 commits and 1,330 merged pull requests, and 12 App Store updates in 45 days.
- Engine / framework
- Not disclosed (native iOS app in Swift, per the developer)
- Languages
- Swift
- Team size
- 1 (solo)Developer ReportedZenn (ひろっきー)
- Initial build time
- About 8 days from the first commit (17 Jun 2026) to the first App Store release (25 Jun 2026)Developer ReportedZenn (ひろっきー)
- Development time
- Not disclosed
- Development cost
- Not disclosed
- AI-written code
- Not disclosed
“このアプリはバイブコーディングで作っています。人間はコードをほぼ書いていません。”Verification notes: AI use from the developer's Zenn article of 15 Oct 2026 (author ひろっきー, hirockysan), which links this App Store app and says the developer makes it alone. Seller name, release date (25 Jun 2026), current version (1.1.14, 26 Oct 2026), languages and the 32-game list from the Japanese App Store page and Apple's lookup data; the English name Asobiba from the app's website and the US store. The article counted 25 games on 15 Oct; later updates added more. “Almost no code” is the developer's wording, so no AI code share is recorded. The JP App Store showed 4.6 out of 5 from 25 ratings on 3 Nov 2026 (observed; there is no App Store rating metric, so it is not recorded as one); the US store showed no ratings. The article says the repository is public but does not link it, so the game is not marked open source. No source mentions generative AI running in the app.
Development history
Released free on the App Store, about eight days after the first commit.
The developer hands day-to-day development to Claude Code as “CEO”, running on a three-minute schedule.
DeveloperZenn (ひろっきー)Version 1.1.0, the first of 12 App Store updates in 45 days (to 1.1.11 on 12 Oct).
DeveloperZenn (ひろっきー)The developer publishes an article on Zenn about the pipeline: 3,925 commits and 1,330 merged pull requests so far.
DeveloperZenn (ひろっきー)Version 1.1.12 adds English, switchable in Settings.
OfficialApple App StoreVersion 1.1.14 adds four games, bringing the collection to 32.
OfficialApple App Store
Game performance
Each figure measures something different — concurrent players, owners, downloads and sales are never interchangeable and are never added together. Labels show where each number comes from.
App Store (iOS)
Free with ads (banners; full-screen video ads only when the player opts in, e.g. to take back a move or to continue); no in-app purchases listed (JP store, observed 3 Nov 2026). iPhone and iPad; requires iOS 17.0 or later. In the US store as “Asobiba: Cards, Shogi, Poker”.
Not publicly available: Gross revenue.
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Sources
| Source | Type | Published | Accessed |
|---|---|---|---|
| AI を社長に、人間を会長にしてゲームアプリを運営している話 ― launchd と Claude Code で回す開発パイプラインの中身 Zenn (ひろっきー) · Japanese | Devlog | Oct 15, 2026 | Nov 3, 2026 |
| オフラインゲーム集 あそびば：トランプ・将棋・ポーカー (App Store) Apple App Store · Japanese | Store page | Not confirmed | Nov 3, 2026 |
| あそびば - オフラインで遊べる無料ゲーム32種の詰め合わせ あそびば · Japanese | Official site | Not confirmed | Nov 3, 2026 |
