Food Truck Park Tycoon
A cozy idle tycoon built as a road trip — and a reusable, dependency-free game engine underneath it.
A cozy idle tycoon played as a road trip between towns: an isometric grid you build on, a 3-second tick economy, quests, research, named regulars and VIP gifts sent between players' parks. Only eight entities, because the save is JSON columns on one player-state row with a versioned one-time board-widen migration. Underneath sits a dependency-free, framework-free pure-JS tycoon kernel lifted out of the game and then proved generic by a second manifest for a different game that imports nothing but the kernel.
Open the live appData entities
8
What makes it work
- The kernel is nine pure-JS modules with no imports outside its own directory, and its test suite asserts it reproduces the game's own logic exactly across 400 seeded boards — armed with a deliberately divergent manifest that must NOT match
- A park you are not standing in fills a till at a fraction of the offline rate, not the live one, and a park with no usable timestamp earns nothing rather than guessing
- The pan/zoom transform is held in a ref and written to the DOM imperatively so a 60fps drag never re-renders the ~300-node tile tree; a press under 6px stays a tap rather than a pan
The Vault
You've seen the apps. Take the prompts.
Anyone can describe an app to an AI and get something back. The difference is in the structure — and the structure is what's written down in here.
Every build prompt on this page
Full text, not summaries. Copy and run.
150 production Claude skills
Installed, organised, documented.
Weekly drops
New prompts and skills, with the reasoning behind them.
Office hours
Bring a build that is stuck. Leave with it working.
The scaffold and the method
How the prompts are structured, so you can write your own.
Cancel any time. Or read the free prompts first — they're the same standard as the paid ones, which is rather the point.