Anthropic restricts Opus 5.5 in Claude Code from replicating existing games
Anthropic has restricted the Opus 5.5 model in its AI coding tool Claude Code from helping users replicate specific existing games. Developer @chasmmmmmmmmmmm said that around October 27, Claude Code added a rule that cannot be disabled: users may create original games, games of a certain genre, and games based on their own designs and assets, but may not replicate a specific existing game, even if renamed or claimed to be original. Anthropic technical staff member Addy Osmani responded that two lines of guidance have been added to the Claude Code prompt, and emphasized that using Claude to infringe intellectual property violates the platform's usage policy; currently, this restriction explicitly targets only Claude Code in the Opus 5.5 model.
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The original text explains the specific scope of the restriction and the official response, allowing readers to judge the boundaries of Claude Code in game replication scenarios.
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Anthropic Takes Action: Claude Opus 5.5 Will No Longer Help You "AI-Remake Games"
2026-10-31 14:26 IT Home - Guyuan
IT Home, October 31 news: Game media outlet gamedeveloper today (October 31) published a blog post reporting that Anthropic has restricted the Opus 5.5 model in its AI coding tool Claude Code from helping users remake specific existing games.
Developer @chasmmmmmmmmmmm posted on X yesterday (October 30), saying that around October 27, Claude Code added a rule to the Opus 5.5 model that cannot be turned off:
You can make original games, games of a certain genre, and games based on the user's own designs and assets; you must not remake a specific existing game, even if you rename it or claim it is original.
Anthropic technical staff member Addy Osmani subsequently responded, saying that the company has added two sentences of guidance to Claude Code's prompts to prevent it from "reproducing someone else's specific game." He emphasized that using Claude to infringe intellectual property violates the platform's usage policy, while original games, genre-based games, and games developed using one's own assets can still proceed normally. IT Home attaches the relevant screenshot below:
According to currently public information, this restriction of "prohibiting the remaking of specific existing games" is explicitly targeted only at Claude Code in the Opus 5.5 model. Anthropic stated that it added "two sentences of guidance" to the Claude Code prompts for Opus 5.5 to make the model avoid reproducing others' specific games. The report did not state that Anthropic has extended the same rule to other Claude models or all versions of Claude Code.