Anthropic updates Claude to block AI-generated video game remakes

New restrictions for Claude Code

Anthropic recently released an update to its Opus 5.5 model to change how the AI tool Claude Code handles requests for video game development. The company is attempting to steer the software away from recreating specific games that already exist in the market. This action follows a period of increased activity where users were using AI to generate versions of both classic and upcoming titles.

The update was first noticed by a user who spotted a new rule in the software's instructions. This rule, which cannot be disabled by the user, tells the AI to build original games or games within a specific genre. It specifically instructs the tool to avoid building a recreation of a specific existing game, even if the user tries to rename it or claim it is an original work.

According to a statement from Anthropic staff member Addy Osmani, the change was made because using the tool to infringe on intellectual property is against the company's usage policy. The goal is to ensure the AI remains a tool for creation rather than a tool for copying. Anthropic stated they will continue to iterate on these rules to find the right balance between utility and safety.

The rise of AI-driven clones

The decision by Anthropic comes as a response to a growing trend of AI-driven game remakes. Over the last few months, the video game industry has seen a flood of these clones appearing online. Some users create these versions for fun, while others may be attempting to generate them for financial gain by releasing them as standalone products.

This trend has caused significant anxiety for independent developers who are worried about fast-follow clones. There is a fear that an AI could ingest a demo or a public playtest and release a version of the game before the original developer can finish their own project. This has led some studios to cancel public playtests to prevent their work from being used as training data or blueprints for AI clones.

Developers have also expressed frustration over how these clones appear on major platforms like Steam. Some have reached out to platform holders to ask for better ways to prevent shady clones from supplanting original games. The industry is currently grappling with how to protect original creative work in an era where code and assets can be generated rapidly by large language models.

Technical and practical hurdles

While Anthropic's new rules provide some protection, there are significant technical hurdles to enforcing them perfectly. It is currently unclear how the software can accurately determine if a user actually owns the rights to a specific game idea or the assets they are using. The AI must distinguish between a user building a legitimate

Tracking the rule implementation

The specific update to the software was first identified by an X user named Chasm. This user noticed that a new set of instructions for the tool was pushed to the system on October 27. The rule is listed under a specific internal identifier and cannot be turned off by the person using the software.

This discovery highlights how these safety guardrails are being integrated directly into the model's core instructions. By making the rule permanent and non-optional, Anthropic is attempting to create a hard boundary for its coding assistant. This ensures that the AI's behavior remains consistent regardless of how a user tries to prompt it.

Industry pressure and limitations

The rise of these clones has forced major platform holders to take notice. Developers have pressured Valve to address how it can stop shady clones from taking over space on Steam. In response, the company provided a rare explanation to developers in South Korea earlier this week regarding how it handles these issues.

However, many experts believe these new rules might only stop the most basic copycats. Researchers have shown that people can often bypass AI safety limits by using rhetorical tricks to get the desired output. Furthermore, if Claude becomes too restrictive, some users may simply switch to open-weight models that do not have these types of safety restrictions in place.