[AI Game League EP.1] AI Plays Plants vs. Zombies Solo to the Ending: Claude Cleared All 50 Levels, ChatGPT Stopped at 24
I handed the 50-level Adventure mode of the real-time PC game Plants vs. Zombies to AI to play on its own. This 9-step guide covers reading game state from memory, letting a program do the clicking, quitting likely losses early with a win-probability model, and showing the AI's actions and reasons next to the screen. Claude Opus 5.5 finished 50/50 in 13 hours, GPT-6 Astra stopped at 24/50, and I include why, along with the costs, in numbers.