Anthropic Blocks AI Game Clones in Claude Opus Update

Anthropic has issued an update for Claude Opus that puts a stop to the AI-generated game clones that have filled platforms like Steam.

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  1. Mechanism of the Anti-Clone Update: Anthropic implemented a new directive within Claude Code’s system prompt, specifically designed to reject requests for recreating existing games. This update, introduced around October 27, 2026, forces the model to distinguish between original designs and prohibited IP infringement.
  2. Scope and Limitations of the New Policy: The policy explicitly distinguishes between prohibited recreations of specific titles and permitted development of original games or genre-based projects. Anthropic acknowledges that this automated steering is an iterative process and has established a feedback loop for users whose legitimate personal projects might be incorrectly flagged.

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