Anthropic Blocks AI Game Clones in Claude Opus Update

Anthropic has released an update for Claude that aims to curb AI-generated game clones flooding platforms such as Steam. The occurrence of "AI slop" in the gaming community gained traction after Valve launched Steam Next Fest. Players expressed frustration as their feeds were filled with low-effort clones of existing games and even some recent demo releases.

Developers who invested time and effort into their creations faced the threat of their months or even years of work being undermined. In response, Valve acknowledged the issue and said they would consider potential solutions. Anthropic's Claude Code update introduced a new rule on October 27, which can be observed under the flag "tengu_heron_brook."

The rule states: "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." The official explanation behind this update was provided by Addy Osmani, a member of Anthropic's technical staff, who emphasized that the modification aimed to steer Claude away from recreating someone else's specific game.

This is due to using Claude to infringe Intellectual Property rights being against their usage policy. Original games, genre games, and games built from user's own designs and assets will continue to be supported. The response from Anthropic to this issue has received mixed reactions from the industry. While it provides relief to developers and gamers, the overall impact remains uncertain.