I challenged Claude Fable 5.1 to build the cozy city builder I’ve always wanted to play.
I challenged Claude Fable 5.1 to build the cozy city builder I’ve always wanted to play.
The result is a fully playable town-building game where you can lay roads, build neighborhoods, create farms, place businesses, manage traffic, expand across rivers and coastlines, and watch the world slowly come to life.
In this video, I break down how I built it with AI, the prompts and direction I gave Fable 5.1, the systems it created, what worked, what needed fixing, and how far the game evolved from the original idea.
This is one of those AI projects where I actually found myself wanting to keep playing it after the build was finished.
Want the prompts, files and workflows behind builds like this? They’re all in the AI Creator Bundle.
How far can you push Opus 5.5 for AI game development? I challenged it with an Elden Ring-inspired world, a Far Cry-style jungle shooter, and a sprawling voxel fantasy town. In this video, I explor…
Watch the update
What happens when you give Sonnet 5.5 and GPT-6.1 SOL several hours to build and improve a game? I ran both models through repeated prompts and rounds of revisions to see how far they could go. Thi…
Watch the update