Claude Code will no longer clone games: Anthropic slipped in a silent ban

Claude Code quietly picked up a new rule, and developers learned about it not from an announcement but by running into refusals. Users found a line in the agent's config that Anthropic's servers push on their own: building original games, games in a genre and games from the user's own designs and assets is fine, but recreating a specific existing game is not, even if it is renamed or called original.

A screenshot of the setting spread across X on the morning of October 30 and passed 450,000 views within hours. Users say the rule started arriving around October 27. There is no way to turn it off: no toggle in settings, because the instruction lives on the servers rather than in the installed app.

The people doing legitimate work got hit hardest. The same day, the owner of Conflict Simulations filed an issue marked urgent in the Claude Code repository on GitHub. His studio turns board wargames into digital versions on commission, with the rights holders' permission and from their materials. Sessions that did this work for months now refuse to continue and cite the new rule. He asks Anthropic to narrow it to actual copying of someone else's code and assets, give licensed studios a way to prove their rights, and document such changes in the changelog.

Anthropic has announced nothing. The Claude Code changelog says nothing about games, and the general usage policy taking effect on November 12 has no such clause either. It is also unclear how the agent tells a pirated clone from a licensed port or a mod.

The bottom line: asking for your own tactics game still works, asking to rewrite that specific game in Rust no longer does. For fan remakes and browser ports, that is a real blow.