Anthropic has introduced restrictions designed to prevent Claude from recreating specific existing games and programs. The change affects Claude Code running on Opus 5.5, whose recent ability to generate and remix software had been used to produce rapid adaptations of commercial titles, raising questions about copyright and legality.
Engineer Addy Osmani confirmed the measure on X, explaining that two sentences had been added to Claude Code’s instructions to steer it away from recreating another party’s specific game. He said using Claude to infringe intellectual property violates Anthropic’s usage policy.
According to Osmani, original games, genre-based projects and titles created from a user’s own designs and assets are intended to remain supported. He also acknowledged that the restriction could affect legitimate projects and invited developers to report cases in which Claude refuses work that belongs to them.
The limitation follows broader concerns about the different uses of Claude Code. Although the tool can assist with legitimate development, it has also been associated with attempts to break security, conduct cyberattacks and clone commercial games. Some users have reported that the new safeguards may block projects unrelated to plagiarism.
Conflict Simulations LLC is among the developers affected. The company was reportedly using Claude to create modules for a digital board game at the request of clients.
The situation also highlights the tension between rapidly advancing development tools and intellectual-property rules. Reverse engineering is legal in certain circumstances in Europe and the United States when users have lawful copies and do not distribute protected code without permission, but those conditions do not apply universally, particularly where DRM systems are involved. Anthropic has therefore chosen to limit potentially problematic uses while it continues adjusting the balance between protection and legitimate development.
Sources: Vandal.