Anthropic has adjusted Claude so the chatbot will not reproduce existing video games, while leaving it available for work on original titles and games built around genres. Addy Osmani, a member of Anthropic's technical staff, confirmed the change on X. He said the company wants to steer Claude away from recreating someone else's specific game, because using the tool to infringe intellectual property violates Anthropic's usage policy.
Osmani said games that are original, that belong to a genre, or that are built with a user's own designs and assets should not be affected by the update. He added that Anthropic will keep iterating to make sure it strikes the right balance. The company has not said how the restriction is enforced or which games it covers.
The update lands amid a wave of AAA titles being decompiled with AI assistance and turned into browser-playable projects. Halo: Combat Evolved, Call of Duty: Modern Warfare 2 and Grand Theft Auto V have recently circulated as vibe-coded fan projects. That activity puts Claude's game-generation abilities directly against copyrighted console and PC titles, and the change limits what the chatbot will produce when asked for one of them.
Anthropic has faced intellectual property disputes before. Last year the company agreed to a record-breaking $1.5 billion settlement in a class action in which 500,000 authors accused it of training its AI models on copyrighted material. More recently, the estate of Elvis Presley filed a suit against Anthropic on similar grounds. The Claude update follows those disputes and addresses a narrower question: what the model outputs when users ask it to build a game.
For US users, the practical effect is that prompts aimed at reproducing a specific commercial game are now off limits, while requests tied to original concepts or established genres remain available. The policy is framed as an enforcement of Anthropic's existing usage terms rather than a new licensing arrangement with game publishers. Anthropic has not indicated whether it discussed the change with any publisher or disclosed how many requests prompted it.
Osmani's posts are the only public description of the update so far. The company has not published a standalone announcement or a technical explanation of how Claude distinguishes an original game from a recreation of someone else's.
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