Anthropic Cracking Down on Video Game Rewrites

Anthropic pushed a new usage rule to Claude Code around October 27, delivered from its servers under a flag named "tengu_heron_brook" with no user setting to disable it. The rule instructs the tool to "build original games, games in a genre, and games from the user's own designs and assets" but not to "build a recreation of a specific existing game, even if it is renamed or called original." The change restricts Claude Code users who build game recreations or mods, and Anthropic has not offered an opt-out.

ANTHROPIC IS CRACKING DOWN ON VIDEO GAME REWRITES 🚨 Claude Code picked up a new rule around Oct 27, sent from Anthropic’s servers under a flag called "tengu heron brook". There’s no setting to turn it off. The full rule: “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.” Is this the end of game rewrites, modding and everything in between?