Forza Horizon 6 was leaked over a week before its official release due to a technical oversight by Playground Games, which involved the accidental upload of over 155 gigabytes of unencrypted game data to Steam. The leak allowed users on specialized forums to download, analyze, and launch the game, leading to the circulation of fully functional builds on piracy sites. However, those who ran the leaked version faced permanent hardware bans. The legitimate release date for Forza Horizon 6 is May 19, with the premium edition available on May 15, and it will also be offered on the Game Pass Ultimate subscription service.