Anthropic adds restrictions to Claude to limit video game cloning

The rise of AI game cloning

Artificial intelligence is increasingly being used to reverse-engineer popular video games. These tools allow users to recreate established titles for web browsers or make them playable on platforms where they were never officially released. This process significantly reduces the amount of programming knowledge and time typically required to port complex software.

Several high-profile titles have recently appeared in these formats. As reported by digitaltrends.com, games such as Halo: Combat Evolved, GTA: Vice City, Call of Duty: Black Ops, and The Simpsons: Hit & Run have been made available online using AI assistance. These projects demonstrate how quickly AI can translate existing game mechanics into new environments.

One notable example of this trend is the community-developed project for Bloodborne. Because the game is a PlayStation exclusive, the bbport project represents a native port that was made possible through community efforts and modern tools. The speed at which these ports appear is creating a new landscape for how software is shared and modified.

Impact on indie game studios

The ability to clone games quickly is creating significant anxiety for smaller game studios. Many indie developers rely on public demos to build interest and gather feedback from the community before a full launch. However, these public previews now serve as a potential blueprint for AI-assisted copycats to replicate their work.

Several studios have already taken defensive actions to protect their intellectual property. Digital Sun, the team behind Moonlighter, recently decided to postpone a public Steam playtest for their upcoming title, ReVamp. The studio expressed concerns that someone could use AI to reverse-engineer the unfinished game and release a clone before the official release date.

Similarly, Alliance Arts canceled a planned demo for Drunken Goddess Reflux during the Steam Next Fest. Instead of a public demo, the studio opted for closed play sessions to limit exposure. These developers are finding it increasingly difficult to balance the need for public visibility with the risk of having their unique designs stolen by automated tools.

Anthropic's new restrictions

In response to these concerns, Anthropic has introduced new restrictions for its Claude Code tool. The update was first noticed on social media and later confirmed by Anthropic's Addy Osmani. The primary goal of these changes is to prevent the AI from assisting in the recreation of specific, existing video games.

The new instructions are designed to be specific about what the AI will not do. It is now prohibited from generating code or assets that recreate known titles, even if a user attempts to disguise the request by renaming the project or presenting it as an original work. This is a direct attempt to curb the automated cloning of established intellectual property.

Despite these limitations, Anthropic is not banning game development entirely. Users are still allowed to use Claude to build original games from scratch. They can also work on projects within specific genres or utilize their own unique designs and assets. The goal is to separate creative development from the unauthorized replication of existing products.

The future of AI and IP

While Anthropic's move is a step toward addressing the issue of cloning, the long-term effectiveness of these restrictions remains uncertain. As AI models become more sophisticated, users may find new ways to bypass safety filters or instructions. The technology continues to evolve faster than the policies designed to govern it.

For the gaming industry, this situation highlights a growing conflict between accessibility and ownership. While fans may enjoy seeing old games on new platforms, developers need to ensure they can still profit from their original work. The balance between open-source community projects and commercial protections will likely remain a point of contention.

Moving forward, developers may need to find new ways to share their work with the public without exposing their core code to AI scraping. The industry will have to watch closely to see if Anthropic's restrictions provide enough of a buffer for indie studios to continue their public outreach safely.