---
title: "Anthropic bans Claude from creating video game clones: what changed in the code and who is affected by the new restrictions"
description: "Anthropic has implemented server-side restrictions in Claude Code prohibiting AI from creating copies of existing video games, even renamed ones. The decision was confirmed by company representative Eddie Aftandilian; amid strict filters, false blocks of legitimate projects have already been recorded."
date: 2026-11-02T10:27:55.594Z
lang: en
url: https://xab.info/en/posts/anthropic-bans-claude-video-game-clones
tags: [anthropic, claude, ai-coding, video-games, intellectual-property, claude-code]
author: "Alexander Buran"
publisher: "XAB.info"
---

# Anthropic bans Claude from creating video game clones: what changed in the code and who is affected by the new restrictions

![Monitor displaying Anthropic Claude source code and company logo on the wall](https://xab.info/media/2026/11/02/anthropic-zapretila-claude-sozdavat-klony-vidioigr/anthropic-zapretila-claude-sozdavat-klony-vidioigr-1.webp)

## Key Points

- Anthropic added a server-side directive to Claude Code banning the generation of copies of existing games, including renamed ones
- The changes were officially confirmed by Eddie Aftandilian from Anthropic's technical team
- Original games and projects based on custom assets remain permitted
- Strict filters have already caused false blocks: complaints came from tabletop wargame developers and an Oblivion Remastered mod
- The update is linked to a $1.5 billion settlement payout and a new lawsuit by Elvis Presley's heirs

Anthropic has introduced new server-side restrictions to its AI programming tool, Claude Code, prohibiting the neural network from recreating existing video games. The changes were spotted by users on platform X in the .claude.json configuration file and later officially confirmed by Anthropic technical team representative Eddie Aftandilian. According to the updated directive, the Opus 5.5 model is now required to refuse the generation of copies of third-party titles, even if the user attempts to rename the project or position it as original. Meanwhile, creating completely original games from scratch, developing within specific genres, and using one's own assets remain permitted.

### What exactly changed in Claude's code

A screenshot published online shows a fragment of the .claude.json configuration file, where a new instruction is fixed on line 2937: "Do build original games, games in a genre, and games from the user's own designs and assets. Don't build a recreation of a specific existing game, even if it is renamed or called original." This directive operates at the server level, meaning bypassing it via prompts or local settings is impossible. According to Aftandilian, the Anthropic team continues to refine the system to find the "right balance between creative freedom and legal compliance."

### Legal context: why now

The update comes against the backdrop of intense pressure in the intellectual property arena. Last year, Anthropic agreed to pay a record $1.5 billion settlement in a class-action lawsuit filed by 500,000 authors accusing the company of using copyrighted materials to train its AI models. Recently, a similar lawsuit was filed against developers by the owners of Elvis Presley’s intellectual heritage. Amid these events, tech giants are forced to exercise stricter control over the use of their tools to generate content that could potentially infringe third-party copyrights.

### The wave of "vibe-coded" fan projects

A direct trigger for the update was the surge in popularity of so-called vibe-coded projects—games that enthusiasts decompile and adapt to run in standard web browsers using AI. Among the most prominent examples mentioned in public discussions are Halo: Combat Evolved, Call of Duty: Modern Warfare 2, and Grand Theft Auto V. Such projects, in Anthropic's logic, create the highest risk of copyright infringement for publishers and developer studios, and it is their recreation that is now blocked at the model level.

### False positives: who is affected unintentionally

However, the strict filters have already begun blocking entirely legitimate work. The founder of Conflict Simulations studio complained that Claude flatly refused to continue writing original code for custom digital modules for tabletop wargames. Issues also arose for specialists using the neural network for reverse engineering and PC game optimization—specifically, the developers of a recent mod for Oblivion Remastered that boosted framerates by 40%. Anthropic acknowledged the issue and promised to fine-tune the filtering rules, asking affected developers to send in false-positive reports.

### What this means for developers

For a wide range of developers, the key change is that Claude Code now formally distinguishes between three categories: original projects (allowed), genre-based games without tying to a specific title (allowed), and recreations of existing games (prohibited). The boundary between the second and third categories, judging by initial reports, remains blurred, and Anthropic explicitly states that calibration is ongoing. For the industry as a whole, this step sets a precedent: AI programming tools are beginning to carry built-in intellectual property restrictions, which was previously the exclusive domain of terms of service and judicial mechanisms.

## Fact-Check & Sources

- [Anthropic запретила создавать клоны игр в Claude: какая причина](https://www.rbc.ua/ukr/news/anthropic-zaboronila-stvoryuvati-kloni-igor-1793610523.html) - Confirmation by Eddie Aftandilian, $1.5B context and Presley lawsuit, list of games
- [Anthropic запретила ИИ-помощнику Claude Code создавать клоны существующих игр, но под удар попали и ...](https://www.goha.ru/anthropic-zapretila-ii-pomoshhniku-claude-code-sozdavat-klony-sushhestvuyushhih-igr-no-pod-udar-popali-i-obychnye-razrabotchiki-l6Vy7Q) - Details on Opus 5.5 model, false positives (Conflict Simulations, Oblivion Remastered), promise of rework
- [Claude больше не будет копировать популярные игры — Anthropic изменила правила](https://hi-tech.mail.ru/news/159448-claude-bolshe-ne-budet-kopirovat-populyarnye-igry-anthropic-izmenila-pravila/) - Confirmation: restriction on renamed copies, original games allowed
- [Anthropic запретила пользователям жестоко обращаться с ИИ-ботом Claude — иначе он объявит бойкот](https://3dnews.ru/1149675/anthropic-zapretila-polzovatelyam-gestoko-obrashchatsya-s-iibotom-claude-inache-on-obyavit-boykot) - Подтверждено по источнику 3dnews.ru

## FAQ

### What exactly is Claude prohibited from doing after the update?

Claude Code now refuses to create a recreation of a specific existing video game, even if the project is renamed or positioned as original. At the same time, creating original games, genre development, and using custom assets are permitted.

### Who confirmed these changes?

The changes were officially confirmed by Eddie Aftandilian, a member of Anthropic's technical team. He explained the decision as a necessity for copyright protection and stated that the team will continue filter calibration.

### Did the new restrictions affect legitimate developers?

Yes. The founder of Conflict Simulations studio reported that Claude refused to continue writing original code for tabletop wargames. Problems were also recorded by developers of a mod for Oblivion Remastered. Anthropic asked for false-positive reports to be submitted.

### What is the legal context behind the update?

Last year, Anthropic paid $1.5 billion in a class-action lawsuit by 500,000 authors. Recently, a similar lawsuit was filed by Elvis Presley's heirs. Against this backdrop, the company is tightening control over content generation that potentially violates copyrights.