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On October 28, 2026, Simon Willison put forward a judgment that October 2026 is the inflection point for vibe coding game development. He stated that Claude Opus 5.5 has notable improvements in 3D modeling, music generation, and game design; after having the model make a game more fun, he spent a few weeks creating four browser games he genuinely wanted to play. Each of these projects took no more than four hours of investment, and all were built with HTML and JavaScript and run in the browser. He also suggested starting from prompts like "Build a mobile-friendly three.js game where...", and switching to Claude Code or Codex once a project gets past the prototype stage. Currently, there are no subsequent developments or facts regarding this judgment.
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Simon Willison: October 2026 is the inflection point for vibe coding game developmentDevelopments
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Oct 28
Simon Willison
Simon Willison: October 2026 is the inflection point for vibe coding game development
Simon Willison believes that October 2026 is the inflection point for vibe coding game development. Claude Opus 5.5 has made notable improvements in 3D modeling, music generation, and game design. After having the model make games more fun, he spent a few weeks building four browser games he genuinely wants to play. Each of these projects took no more than four hours of investment, and all were built with HTML and JavaScript and run in the browser; he suggests starting with prompts like "Build a mobile-friendly three.js game where..." and switching to Claude Code or Codex once a project gets past the prototype stage.