The October inflection point for vibe game development

The author argues that October 2026 marks an inflection point for vibe-coded computer games, with Claude Opus 5.5 showing improvements in 3D modeling, music generation and game design, and having responded to the prompt "Make it a LOT more fun" by actually making a game more fun. He describes four browser-based HTML/JavaScript games he built largely by prompting—Tree Appreciator, Emberwick, Battle Drones and Pumpkin Farmer (Quarter Sun Cove)—and notes that GPT-6 Astra can build games but its sense of fun doesn't yet match Opus 5.5. He also discusses the games community's aversion to AI-generated assets and suggests starting with a prompt like "Build a mobile-friendly three.js game where...".