Simon Willison: October 2026 is an inflection point for vibe-coded games
Simon Willison argues that October 2026 marks a new inflection point for vibe-coded computer games, following the November 2025 tipping point for coding agents. He cites Claude Opus 5.5's meaningful improvements in 3D modeling, music generation, and game design, noting that the key challenge is now making games that are actually fun to play.
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Simon Willison
I've written before about how November 2025 was an inflection point for coding agents - the point where Opus 4.5 and GPT-5.1 crossed a tipping point that meant their respective coding agents became reliable daily drivers for software engineers. I think we've reached a new inflection point in October 2026, and this time it's for vibe coding computer games . Tree Appreciator Emberwick Battle Drones Pumpkin Farmer, aka Quarter Sun Cove Four times as insulting What happens if someone actually puts the work in? You should build a game! Claude Opus 5.5 in particular exhibits meaningful improvements in several areas needed to build a compelling game: 3D modeling Music generation (see Scrimshaw Jukebox ) Game design (!) That last one is particularly important. Models have been able to create something that looks like a game for quite a while now, as seen in my previous experiments . The challenge has been getting to a game that's actually fun to play . Game design is a deep subject area. I won
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