Grand Theft Auto
"Grand Theft Auto", the first game in the series, was released for Microsoft Windows and MS-DOS in October 1997, ported to the PlayStation in 1998 and the Game Boy Color in 1999. "Grand Theft Auto 2" was released in 1999 for Microsoft Windows, later receiving ports on the PlayStation, Dreamcast and Game Boy Color.
Grand Theft Auto IV
Two episodic packs for "Grand Theft Auto IV" have been released. These two episodes were first released separately, exclusively on Xbox Live, as downloadable content (DLC), requiring the original game to play. They were later released together as part of a standalone game, titled "Grand Theft Auto: Episodes from Liberty City", which does not require the original game to play. Dan Houser stated the episodes shows "a different side of Liberty City".