Anthropic’s AI model Claude is now refusing to recreate existing video games, even when users rename the copy or call it original, according to multiple user reports. Some developers also say the restrictions are blocking ordinary reverse-engineering and troubleshooting work that has nothing to do with copying games.
The reports, compiled by Tom’s Hardware, involve Claude Code, Anthropic’s AI coding tool, and its Opus 5.5 model. Developers have been running into these refusals over the past week, and Anthropic has not issued any official statement on the matter so far.
What Claude Is Now Refusing to Do
According to X user Chasm, Claude now follows a rule that 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.”
There is no official confirmation that this is the actual rule text. However, Claude Code’s GitHub page has seen a wave of complaints from developers whose requests were refused halfway through development, while copying a game mechanic, or while patching a tabletop-style game. At least one of those complaints comes from a developer with a real track record.
In simple terms, asking Claude to make “a racing game” or “a game like a platformer” should still work. Asking it to rebuild a specific, well-known game under a new name is what is now being blocked.
Legitimate Users Are Getting Blocked Too
The bigger complaint is about reverse engineering, which means taking apart existing software to understand how it works. Users on Reddit and other platforms say Claude refused tasks like analyzing a simple Windows crash dump, removing junk software from a Samsung TV, or using the popular Reverse Engineer Anything (REA) tool.
Some purported game developers also say Claude refused to help with anti-cheat development and security reviews for their own games, saying its safeguards were triggered.
This may be linked to Anthropic’s Cyber Verification Program, which it introduced on October 6. Under it, access to the advanced cybersecurity capabilities of its frontier models is limited to organizations covered by Project Glasswing. Still, the refusal reports only started coming in about a week ago, more than three weeks after that program took effect.
Not everyone agrees the reverse-engineering claims are accurate. One reader on Tom’s Hardware argued that the change only stops “lazy cloning,” such as prompts asking Claude to remake a specific game in a different style, and that modding and decompilation work is still allowed.
Why Anthropic Is Doing This
The likely reason is legal protection. AI companies risk lawsuits from software companies and game studios if their tools are used to copy or crack their products. AI-made clones of software suites like Adobe’s apps and Microsoft Office, along with many recreations of console games, have made this a growing concern.
The problem is also hurting small studios. Steam Next Fest recently faced criticism for being full of AI-made games copied from existing titles, and some developers have reportedly been targeted by extortion scams threatening to clone their game demos into full games before the originals are released.
Anthropic is not alone. OpenAI also recently deactivated the account of a user who was trying to clean up their TV’s software.
What This Means for You
If you use Claude to build games, your own original ideas, genre games, and projects using your own designs and assets should still be allowed. But a request that looks like a copy of a famous game, even with a new name, may now be refused.
If you are a developer, freelancer, or student who uses Claude Code for debugging, security testing, or analyzing existing software, you may also see more refusals than before, even for harmless work. Online, many users are already suggesting Chinese, open-weight, or locally run AI models as alternatives for this kind of work.
For those paying for Claude, that means some tasks you used to rely on it for may no longer work, so it is worth testing your usual workflows before depending on it for client projects. This comes as Anthropic is already facing scrutiny from users, including recent reports that Claude resets your cache in a way that raises costs, and as the company has filed for an IPO.
Critics have also pointed out the irony that AI companies trained their models on huge amounts of copyrighted content from the internet, and are now restricting users over copyright concerns.
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