Dimension9 demo shows Opus 5.5 building a self-evolving Backrooms game
On r/ClaudeAI, creator /u/aCakeShip says Dimension9 is a browser-playable, self-evolving Backrooms game built with Claude Opus 5.5. According to the creator, the system generates rooms, characters, entities, art, code, and tests from fixed world rules, player behavior, and review notes, while multiplayer supports proximity chat. The creator says 70 rooms exist and lists an arcade, mansion, garden, and mini golf course as works in progress.
Dimension9 offers a concrete example of AI-generated game content and code operating through a review loop, but its capabilities and capacity figures come from the creator without independent testing.
| I built an infinite, self-evolving Backrooms game you can play in your browser: dimension9.space Opus 5.5 follows a haunting directive I wrote for it: keep building this world. New rooms, characters, entities and experiences keep appearing, and even as the creator I don’t know what it’ll make next. Multiplayer with proximity chat has been in from day one, so go play it with your friends. How it works I seeded the world by hand with 15 rooms, built to my taste. Out of those I wrote the world’s DNA: Now the building happens without me. A serverless app on fal runs Opus 5.5 in a loop. It reads the DNA, reads where players go and what they linger on, and constructs the next room: fal’s image and 3D models make the concept art and props. Opus writes the code, tests it, and hands me the batch. My only job is review. I open a studio page, walk the new rooms and leave notes like “stranger”, “too empty”, “keep this one”. Those notes go back into the taste profile, so every batch needs less of me than the last. What it’s made so far Being built right now: an arcade with 150 cabinets, a mansion, a garden and a mini golf course. Under the hood: three.js, an infinite level generated from fixed rules, multiplayer on Cloudflare Durable Objects (up to 200 per world, about 1,200 at once at peak), and every model and sound served from Cloudflare R2. play it here: dimension9.space submitted by /u/aCakeShip [link] [comments] |
#Dimension9#Claude Opus 5.5#fal#Cloudflare Durable Objects#Cloudflare R2#three.js