What Claude's New Anti-Cloning Rule Means for Aspiring Devs

For players, this could mean fewer low-effort clones on Steam, but it also raises questions about how AI tools will be regulated in game development. For developers, it's a reminder to protect their c…

For players, this could mean fewer low-effort clones on Steam, but it also raises questions about how AI tools will be regulated in game development. For developers, it's a reminder to protect their c…

Key points - Anthropic added a rule to Claude Opus 5.5 to prevent recreating specific existing games, even if renamed. - The update follows weeks of AI-generated game clones flooding Steam and developer complaints. - Claude Opus 5.5 has been used to decompile old console games and jailbreak the PS5. - Steam Next Fest demos doubled recently, with AI-assisted games driving most of the increase. - Valve admits Steam has an AI slop problem but won't ban AI coding tools outright.

Timeline - Recent weeks: Steam sees influx of AI slop and game clones, prompting developer outcry. - Last week: Valve's Tom Giardino discusses AI slop at Steam's Indie Connect event. - This week: Anthropic updates Claude Opus 5.5 with new rule against cloning existing games.

FAQ

Q: Can I still make original games with Claude? A: Yes, Anthropic says original games, genre games, and games built from your own designs will continue to work. The rule only targets recreations of specific existing games.

Q: Why did Anthropic make this change? A: Using Claude to infringe intellectual property violates Anthropic's usage policy. The update aims to steer users away from cloning existing games.

Q: What is Valve doing about AI slop on Steam? A: Valve acknowledges the problem but doesn't want to ban AI tools. Instead, it's focusing on making Steam smarter and more dynamic, and suggests developers make games harder to copy.