Grand Theft Auto: Great Britain (GTAGB) is a modification for the PC game Grand Theft Auto (GTA) or more specifically GTA San Andreas. A simplified development plan is to replace the content of this game with a GTA-styled map of England and Wales, an entirely new selection of vehicles common to the Britain Isles and Western Europe, and a storyline and atmosphere heavily based on present day Britain, it's people, cultures, law enforcement and underworld.