Claude Opus-Powered Self-Evolving Infinite Backrooms Game Goes Viral

Developer apekshik built an infinitely self-evolving Backrooms game, Backroom: Dimension 9, using Claude Opus 5.5. Instructed to never stop building, the AI generated 50 rooms overnight and has grown to 70, surprising even its creator.

2026-11-07 ~ 2026-11-08 · 3 related posts

• Infinite self-evolving Backrooms game built on Claude Opus is 'the coolest game experience' — noahsolomon · 2026-11-07
• Sentient AI left to build a Backrooms game spawned 50 rooms and 9 entities overnight — noahsolomon · 2026-11-08
• Dev builds infinite self-evolving Backrooms game with Opus 5.5, 70 rooms and counting — aCakeShip · 2026-11-08