The European Court of Justice ruled that third-party add-ons for Sony PlayStation games do not violate EU copyright law, supporting the modding ecosystem. The court stated that the legal protection of computer programs does not prevent third parties from marketing software that only changes temporary variables. Datel's software, which provided enhancements for games, was found not to infringe copyright as it does not alter source code. Critics argue that Sony's attempts to control modifications are excessive and could harm the gaming industry.