Portal
gameappid 400 · released Oct 10, 2007
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 the horizon and will offer gamers hours of unique gameplay.
Price
$9.99
Lowest ever
$9.99
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All-time peak
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Reviews
99%of 199,073
Concurrent players
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