Portal
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Video game developer
Valve Corporation

Valve Corporation
Fictional world
Half-Life universe

Half-Life universe
Related video game
Portal 2

Portal 2
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8.38.3
26 votes

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88
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Information

Portal is a first-person puzzle-platform video game developed by Valve Corporation. The game was released in a bundle package called The Orange Box for Microsoft Windows and Xbox 360 on October 9, 2007, and for the PlayStation 3 on December 11, 2007. The Windows version of the game is available for download separately through Valve's content delivery system Steam and was released as a standalone retail product on April 9, 2008.

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