Modifications to the game are not officially endorsed by Rockstar Games, although there are exceptions for their use made in later games. Modifications, more commonly known as simply mods, are alterations made to games in the Grand Theft Auto series, typically made by fans. For the garages that modify vehicles in Grand Theft Auto: San Andreas, Grand Theft Auto V and Grand Theft Auto Online, see Mod Garages. This article is about modifying game files.