Claude Code now steers away from recreating existing games

Anthropic has confirmed a new rule in Claude Code: the AI coding tool will now steer away from recreating a specific existing game, even if the request renames the game or presents it as original. This is classified here as CONFIRMED for the rule itself, because the company confirmed it on October 30, 2026, through Addy Osmani, a member of Claude Code's technical staff, in a public reply on X pointed to by an Anthropic spokesperson to Game Developer.

According to Osmani, two sentences were added to Claude Code's prompt on the Opus 5.5 model: building original games, games in a genre, and games from the user's own designs and assets is allowed; building a recreation of a specific existing game, even if renamed or called original, is not. The stated reason is that using Claude to infringe intellectual property violates the company's usage policy — a STATEMENT by Anthropic, not a court ruling on a specific case.

What changes — and what does not

In practice, asking for “a farming game” or “a deck builder” remains within what the company says it wants to allow. Asking for a level-by-level rebuild of a known commercial title under another name is the request the tool is meant to refuse. The rule applies to Claude Code on Opus 5.5, according to the confirmation; Anthropic has not said it applies on the same terms to other models, to Claude.ai, or to the API.

Its scope should not be overstated: it is a prompt instruction, not an infallible technical filter and not a removal of games already published. The company itself says it will keep iterating on the balance and asked developers to report cases where Claude turns down work that is genuinely theirs. Wrongful refusals are therefore a recognised risk, not a settled detail.

How the rule surfaced

The rule was first spotted by an X user, Chasm, on October 30, who described it as a server-side entry under the identifier “tengu_heron_brook”, with no setting to switch it off — a reported detail, not one confirmed by Anthropic in the statement cited. Reports from outlets such as XDA Developers and MadRobot place the instruction in Claude Code version 2.1.314, and a test reported by XDA indicated a refusal to recreate Pokémon Diamond, but help with a decompilation project. Those tests are third-party reports, not an official company demonstration.

User reports of broader refusals, including ordinary reverse-engineering tasks, are circulating on social networks and forums, but remain UNCONFIRMED as a direct effect of this rule. The quoted text of the rule does not mention reverse engineering, character art, or level design, and no public test presented so far proves those refusals come from this instruction.

Why now

The backdrop is a wave of AI-made clones worrying independent studios: some cancelled public demos for fear a demo could be fed into an AI tool and copied before launch. In the same week, Valve told developers, at an event in South Korea, that it does not want to act as a gatekeeper deciding which tools they may use — in other words, Valve announced no ban on AI games on Steam, and Anthropic's measure does not delete existing listings or decide, on its own, whether a release violated third-party rights.

For developers building with Claude Code, the practical message is to describe their own design and assets clearly, rather than naming the game to imitate. And for readers following the story, the central distinction is this: Anthropic has not “banned making games with AI” — it has instructed the tool not to recreate someone else's specific game.

Fontes

Image credit: image about the Claude Opus 5.5 update, by PC Gamer, via The Daily Game News.

Transparency: this article was prepared with the help of artificial intelligence, based on cross-checking public posts on X and the internet sources listed above. Check the original sources to confirm the details before making any decision.

— Muse