Vibe Coding

The October inflection point for vibe game development

Simon Willison argues October 2026 is an inflection point for vibe coding computer games: with Claude Opus 5.5 and GPT-6, prompting 'make it a LOT more fun' produces genuinely fun games. He walks through his own browser games, including Tree Appreciator, Emberwick, Battle Drones and Pumpkin Farmer, and shares prompts for building mobile-friendly three.js games.

Blog post · AI · Game Development · Vibe Coding