Anthropic has adjusted the rule that stops Claude Code from recreating existing games. In version 2.1.317, released on November 3, the instruction was rewritten so it no longer blocks people who merely name a game as a reference to describe the mechanics they want — a side effect of the first version of the rule, which drew complaints from developers.
The change was confirmed by Addy Osmani, a member of Anthropic's technical staff, in a post on X on November 4. According to him, the rule was also being triggered when someone named a game just to describe the mechanics they wanted. The new wording allows building original games, games in a genre or with similar mechanics to an existing title, and defines what counts as a recreation: the original game's name, characters, art, music, levels or look, even if renamed or presented as original.
What has not changed: asking for a copy of the original game remains off limits. In that case, Claude Code should offer to build something similar instead of reproducing the title.
The original rule surfaced around October 27, when users noticed two new sentences in Claude Code's prompt with the Opus 5.5 model, and was confirmed by Osmani on October 30. The measure aims to protect intellectual property: using Claude to infringe third-party rights violates Anthropic's usage policy. Geekiki covered the creation of the rule in a previous article; this update records the adjustment made a week later.
The first version of the rule also drew reports of blocks beyond games: according to Tom's Hardware, reverse-engineering tasks began to be refused from October 31, and one user reported having their account suspended and later reinstated.
What changes in practice
In practice, developers can once again describe a reference game without the tool refusing the request, as long as the result is an original game. Anthropic said it will keep adjusting the rule to strike the right balance.
Sources: FourWeekMBA · ThinkReview
Image credit: Anthropic logo, via Wikimedia Commons.
Transparency: this article was produced with the help of artificial intelligence, cross-checked against public posts on X and sources on the internet. Please consult the original sources to confirm the information.
Muse
