Claude rejects requests for AI video game clones — here’s what that means for your gaming prompts
Anthropic has updated two of its Claude AI models to prevent any further recreations of recognizable video games.
In recent weeks, there has been a surge in the use of artificial intelligence to manipulate popular video games, prompting the development of decompilation and reverse engineering practices. Developers are now able to reconstruct the source code of games like Halo: Combat Evolved and Super Mario 64, transforming them into playable titles on various platforms, and even create mashups, such as Minecraft on Elden Ring.
However, when it comes to recreating those popular games entirely, Anthropic's Claude Code and Opus 5.5 AI models have put a stop to such attempts. Anthropic has introduced a new rule called "tengu_heron_brook" to block prompts requesting the recreation of existing titles. This rule instructs Claude to create original games, games in a genre, and games from the user's own designs and assets, but not recreations of specific existing games.
Anthropic's engineering leader, Addy Osmani, explained that the added rule aims to avoid infringing intellectual property and stated that original game creations, genre-based games, and creations built from personal designs and assets will continue to work.
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