Portal (video game) - Wikipedia, the free encyclopedia Portal is a single-player first-person puzzle-platform sci fi video game developed by Valve Corporation. The game was released in a bundle package called The Orange ...
Portal on Steam - Welcome to Steam Portal™ is a new single player game from Valve. Set in the mysterious Aperture Science Laboratories, Portal has been called one of the most innovative new games on ...
Portal 2 on Steam - Welcome to Steam Portal 2 draws from the award-winning formula of innovative gameplay, story, and music that earned the original Portal over 70 industry accolades and created a cult ...
Amazon.com: Portal 2: Pc: Video Games Portal 2 is a unique first-person Action-Puzzle-Platforming game that tests player's ability to think and act creatively as they use the game's ingenious wormhole ...
Newgrounds.com — Everything, By Everyone "The Problems of the Future, Today!" ~ A human rated submission Portal ~ testing ground for ethically borderline Flash games and movies.
