fable51-worlds
What it is
Walkable, browser-based 3D worlds generated entirely as code: Claude Fable 5.1 agent swarms take a brief plus OpenStreetMap data and USGS topography, write every building, sign, and tree as Three.js, and verify the result against real photos with Playwright — no game engine, no premade assets. The repo ships finished worlds, including Union Square and Kyoto's Higashiyama, and every world carries its own QA report, defects listed.
Featured in
Issue #11 — Mark Your Own Homework · — the full issue has that week's other tools, reads, and big-lab releases.