Portal 2

Portal 2 is the upcoming single-player Puzzle-Platformer, developed by Valve. It is the sequel to the critically acclaimed 2007 video game Portal, that was initially expected to be released in the last quarter of 2010. The game is scheduled for release on February 9, 2011 though and will be available for both retail and Steam-enabled versions for Microsoft Windows and Mac OS X, and retail versions for the PlayStation 3 and Xbox 360 platforms.



