Anthropic Tightens Claude Code Rules on Game Cloning

WHO:

Tom’s Hardware - Anthropic confirmed restrictions in Claude Code intended to steer it away from recreating a specific game.

Eurogamer.net - Anthropic staff member Addy Osmani confirmed the new rule’s legitimacy in a reply to X user Chasm.

Eurogamer.net - X user Chasm shared a screenshot of the rule.

Eurogamer.net - Users on GitHub reported restrictions affecting attempts to make digital board-game modules and recreate a commercially produced board game for personal use.

Ars Technica - The article says the wave of AI game imitators is larger than any one model maker can stop.

WHAT:

Tom’s Hardware - Anthropic said intellectual-property infringement violates its usage policy; reports described Claude Code blocking reverse-engineering efforts, while online complaints grew.

Eurogamer.net - An update to Claude seemingly blocked outright copies of existing games, while allowing creation of original games.

Eurogamer.net - The rule says: “Do build original games, games in a genre, and games from the user's own designs and assets. Don’t build a recreation of a specific existing game, even if it is renamed or called original.”

Eurogamer.net - Osmani said using Claude to infringe intellectual property is against Anthropic’s usage policy, but original games and games using a user’s own assets should remain possible.

Eurogamer.net - AI-assisted copies of triple-A games have appeared, including a browser-playable version of Mario Kart 8.

Eurogamer.net - The Mario Kart 8 version was taken down within days, presumably following a legal notice from Nintendo.

Eurogamer.net - The article said other AI tools, including Deepseek, did not have similar restrictions.

Ars Technica - Its headline states that Claude’s anti-cloning rules will not stop the AI copying boom.

WHEN:

Eurogamer.net - Chasm’s screenshot purported to show the rule being added around 27th October.

WHY:

Tom’s Hardware - Anthropic said the restrictions were intended “to steer it away from recreating someone else's specific game.”

Eurogamer.net - Osmani said the rule was included because using Claude to infringe intellectual property violates Anthropic’s usage policy.

Eurogamer.net - The article reported that game communities had pushed back against AI copies and developers had withdrawn public-facing demos amid fears their work could be stolen.

HOW:

Eurogamer.net - The restriction was added to Claude’s software rules, distinguishing permitted original games, genre-based games, and user-designed games from recreations of specific existing games.

Eurogamer.net - Eurogamer said it contacted Anthropic for comment on the rule change and its position on AI game copies.

(UPDATED November 2, 2026 20:11 UTC)

Anthropic confirmed Claude Code now blocks recreating specific existing games, citing intellectual-property protections. The rules still allow original games, genre-based projects, and designs using users’ own assets. But complaints persist, as AI game imitators remain widespread across other tools.