One developer, 4 days, about 1,150 PRs: a full arcade game you can play inside an X post, built with Grok Bot running Cursor
Developer Lauren (poteto) shipped tibo's game at tibo.dog, a browser arcade game made with Grok Bot orchestrating a Cursor project. She says it took 4 days as a side project and landed around 1,150 pull requests. Her rules are the interesting part: every bug she found became a lint rule, TLA+ formal specs checked the story, cutscene and game state machines, per-frame code lives in .hot.ts files where allocations are banned, and code comments are banned in favour of better names and tests. The music and pixel art are generated by code, the simulation is deterministic so high scores are replayed server-side, and the first download stays around 124 KB gzipped.
Why it matters
It shows how a solo builder can keep an agent fast and safe at once: turn every mistake into an automatic check, so the agent can't repeat it on the next PR.
Who it's for
Developers running coding agents on real projects, and game makers curious how far a weekend side project can go.
How to try it
- Play a few runs at tibo.dog to see the target quality.
- In your own project, every time the agent ships a bug, ask it to write a lint rule or test that would have caught it.
- Put hard limits into the build itself, such as a bundle-size budget or a ban on allocations in hot code, so the agent gets told no automatically.
Plan & availability: The game is free to play at tibo.dog. Grok Bot and Cursor need their own accounts and plans. Her workflow is her own; she says about 80% of her time went into playtesting and feeding notes back to the bot.
Note: reported by users on X; we haven't independently confirmed it works in the current version.
Source: poteto (Lauren) on X
Written by AgentStackList from the original post. Checked Nov 2, 2026. Features, plans and availability can change, so confirm on the source before you rely on it.
grok-botcursorgame-devlint-rulestla-plus
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