Simon Willison argues that October 2026 marked an inflection point for vibe coding games, as models such as Claude Opus 5.5 can now design games that are actually fun to play. He built four browser-based projects, Tree Appreciator, Emberwick, Battle Drones, and Pumpkin Farmer (Quarter Sun Cove), each taking him no more than four hours of his own work. He suggests the new challenge is devising novel game concepts, and acknowledges that AI-generated assets are likely to draw criticism from parts of the games community.
