762 people played a game built with Opus 5.5 in its first day or so. The average session ran 1 minute 41 seconds, about long enough to reach the end of the level.

The game is Tidebreaker, a 2.5D platformer with a boss chase. Its maker says the puzzles, the graphics and the game logic were all made with AI, with Claude Code on Opus 5.5 doing most of the work.

PLAYERS - 762 monthly, 634 daily on the dashboard
SESSION - 1 min 41 sec on average
STACK - Claude Code, Blender, Tripo for 3D, ElevenLabs for audio

The article below walks through building a mobile game like this in under 5 hours and getting paid for it.

The model that built it is still second in the leaderboard race. Polymarket has Google at 70% to hold the top AI model at the end of October, Anthropic at 28.5%.

https://polymarket.com/event/which-company-has-the-best-ai-model-end-of-october?via=atlas