One-shotting a Raccoon Heist game using Claude Fable 5
Simon Willison's Weblog Simon Willison ● Covered by 2 sources
Claude Fable 5 generated a complete 3D browser-based game called Raccoon Heist based solely on a 2022 tweet and concept images, including procedurally created characters, AI-generated textures, and a dynamic soundtrack. The game required 7 commits and took approximately one development session to build, with Claude independently handling design decisions, testing with Playwright, and fixing bugs discovered during playthroughs. The deployment now works as a fully functional standalone game with no runtime API calls, though the result is a functional prototype rather than a polished final product.
Why it matters
Back in 2024 I tweeted screenshots of a game concept generated by GPT-3 and some concept "art" created using DALL-E. Today, on the fourth anniversary of that tweet, I decided to see if Claude Fable 5 (running in Claude Code for web) could build the entire game from the content of that tweet. It did a pretty good job of it! You can play the game here. Here's the GitHub repo, and a short video demo: Your browser does not support HTML5 video. How I built this This is the August 5th, 2022 tweet: My GPT-3 prompt back then was: Write a detailed product description of a computer game where a team of raccoons go on heists. This was in the text completion days, where you asked GPT-3 to complete the rest of the text. It completed: In "Raccoon Heist", you and your team of thieving raccoons are tasked with pulling off a series of daring heists. From robbing banks to stealing priceless art, no job is too big or too small for your furry crew. You'll need to use your wits and your skills to avoid the
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