Claude Code won't remake existing video games: Anthropic's new rule explained
Anthropic has told Claude Code not to rebuild a specific existing game, even renamed. What the rule says, what still works and what it means for Pakistani devs.
Anthropic has added a rule to Claude Code, its AI coding assistant, telling it not to rebuild a specific existing video game, even if the user renames it or calls it original. The company confirmed the change after developers spotted it last week, and said original games, genre games and games made from a developer’s own designs and assets should still work.
What the rule says
The change was noticed by a developer who posts on X as Chasm, who found a new instruction pushed to Claude Code around 27 October under an internal flag. It reads: “Do not build a recreation of a specific existing game, even if it is renamed or called original.” Users cannot switch it off.
Anthropic did not publish a separate announcement. Instead a spokesperson pointed to a post by Addy Osmani, a member of Anthropic’s technical staff, who wrote that the company “added two sentences to Claude Code’s prompt on Opus 5.5” to steer it away from recreating someone else’s specific game, “because using Claude to infringe IP is against our usage policy”.
What you can still build
Osmani said three kinds of projects are “meant to keep working”:
- a completely original game,
- a game in a familiar genre, such as a platformer, a racing game or a match-three puzzle,
- a game built from your own designs and assets.
He asked developers whose own projects get refused by mistake to send him the examples, and said Anthropic would keep adjusting to strike “the right balance”. Some self-described game developers have already said the model turned down work on their own titles, such as anti-cheat code.
Why it happened
AI coding tools have made it fast to copy a hit game’s look and mechanics, and indie studios are worried. In the last month the studio Digital Sun Games cancelled a public playtest of its game ReVamp over fears of AI clones, and at least one other studio moved to private tests. At an event in Busan on 27 October, Steam owner Valve acknowledged the clone problem but announced no new rules.
Our take
The rule is narrow. It stops the low-effort “make me a copy of this game” request, not people learning game development. Critics point out that a determined copier can switch to an open-weight model with no such limit, and that an AI cannot really check who owns a design.
For Pakistan’s growing game studios and freelance developers, who often build Unity and web games for foreign clients, the practical advice is simple: brief the AI with your own design document and assets, describe the genre rather than naming another company’s game, and keep proof of ownership when a client hands you art. Gigs on freelance sites that ask for a “clone” of a famous title were legally risky before this rule; now the main AI tools are less likely to help with them either.
What to watch: whether Anthropic publishes the rule formally, and whether other AI coding tools follow.
