Portal
Portal is a new single player game from Valve. Players must solve physical puzzles and challenges by opening portals to maneuvering objects, and themselves, through space.
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Founded:
October 9, 2007
 
Portal

Portal There's only one official Valve twitter account, and that's @steam_games. Follow us for all your official Valve and Steam news!

November 16 at 1:40pm
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Portal Steam Weekend Deal - The Orange Box 66% Off

April 24 at 12:46pm
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Portal The original trailer we released to announce Portal to the world.

Portal

Portal Become a fan of the Steam page to learn about new game releases and special promotions!

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Portal
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