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
"Grand Theft Auto IV" is an action-adventure game played from a third-person perspective. Players complete missions—linear scenarios with set objectives—to progress through the story. It is possible to have several active missions running at one time, as some missions require players to wait for further instructions or events. Outside of missions, players can freely roam the game's open world, and have the ability to complete optional side missions. Composed of the fictional city of Liberty City, the world of "Grand Theft Auto IV" is larger in area than most earlier entries in the series. At the beginning of the game, players can only explore the first island–composed of Dukes and Broker–with all other islands unlocking as the story progresses.