Anthropic Restricts Claude Code from Replicating Existing Video Games to Curb IP Infringement

Anthropic has implemented restrictions in its coding assistant, Claude Code, prohibiting the replication of existing video games to prevent intellectual property infringement. Anthropic employee Addy Osmani confirmed that the team added two sentences to the system prompt for Opus 5.5 to intercept game-cloning attempts, which trigger the filter even if projects are renamed or disguised as original work. Users can still develop original projects using custom assets, though some developers have already reported false-positive blocks on original creations.