The Cube 2 is a 2005 conceptual puzzle video game developed by Southers (who later became Rockstar Guy City) and published by Rockstar Games, which was released for the PlayStation 2 and Windows, and then with following releases onto the original Xbox and the Xbox 360, and then as the last title on PlayStation, and later on the PlayStation 3. It was served as an inspiration for the 2009 video game Edge, which uses a similar engine and similar gameplay.