Anthropic is reportedly taking action to stop the use of its Claude AI tools to remake popular or upcoming games, according to a story in Game Developer.

There’s been a flood of AI-driven remakes in the past few months, causing some companies to decide not to engage in public game testing.

Last week, a Twitter used named Chasm said they saw an update to Claude Code’s rules that tells its large language model not to build a re-creation of an existing game, even if it is renamed.

An Anthropic spokesperson told Game Developer to look at a post by Anthropic’s member of technical staff Addy Osmani on X. “We added two sentences to Claude Code’s prompt on Opus 5.5 to steer it away from recreating someone else’s specific game because using Claude to infringe IP is against our usage policy,” Osmani wrote. “Original games, genre games, and games built from your own designs and assets are meant to keep working. We’ll continue to iterate to ensure we’re striking the right balance.”

Claude Code is an AI coding agent. It can understand a codebase, write features, modify files, run commands, debug issues, and handle development tasks through natural-language instructions. If you ask it to build a “match-3 game like Candy Crush,” it can do that surprisingly fast. But that won’t necessarily protect someone from the legal ramifications of doing that.

5 to steer it away from recreating someone else's specific game because using Claude to infringe IP is against our usage policy.

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