Grand Theft Auto Online is a persistent, open world online multiplayer video game developed by Rockstar North and published by Rockstar Games. It was released on 1 October 2013 for the PlayStation 3 and Xbox 360, and was released on 18 November 2014 for PlayStation 4 and Xbox One, with a Microsoft Windows version on 14 April 2015. The game is the online multiplayer mode for Grand Theft Auto V. Set within the fictional state of San Andreas (based on Southern California), Grand Theft Auto Online allows up to 30 players to explore the open world and engage in cooperative or competitive game matches. The open world design lets players freely roam San Andreas, which includes open countryside and the fictional city of Los Santos (based on Los Angeles).