PORTAL 2 (XBOX 360 X360)

Portal 2 is a First-Person Puzzle Platformer video game developed and published by Valve. The game was released for Windows, OS X, PlayStation 3 and Xbox 360 on April 19, 2011 in North America, and two days later for the rest of the world. The version for Linux was put into beta testing on February 25, 2014. The optical disc version of the game is distributed by Electronic Arts, while the online distribution for Windows and OS X is handled by Content Delivery Service. Valve, Steam.