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A standalone version with extra puzzles, Portal: Still Alive, was also published by Valve on the Xbox Live Arcade service in October 2008 exclusively for Xbox 360. A sequel, Portal 2, was released in 2011, which
Portal Reloaded is a single-player mod for Portal 2 created by Jannis Brinkmann and was released on April 19, 2021, exactly 10 years after the release of Portal 2. [186] The mod gives players the ability to fire a third portal, the "time portal", to travel between the present and future versions of each test chamber.
Portal is a series of first-person puzzle-platform video games developed by Valve.Set in the Half-Life universe, the two main games in the series, Portal (2007) and Portal 2 (2011), center on a woman, Chell, forced to undergo a series of tests within the Aperture Science Enrichment Center by a malicious artificial intelligence, GLaDOS, that controls the facility.
The Orange Box is a video game compilation containing five games developed and published by Valve.Two of the games included, Half-Life 2 and its first stand-alone expansion, Episode One; had previously been released in 2004 and 2006 as separate products.
The ARG's theme of potatoes reflected a part of Portal 2's story, in which GLaDOS is powered by a potato battery.. Potato Sack is an alternate reality game (ARG) created by Valve and the developers of thirteen independent video games to promote the release of Valve's game Portal 2, in April 2011.
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The release of The Orange Box on multiple platforms allowed for a large code refactoring, which let the Source engine take advantage of multiple CPU cores. [11] However, support on the PC was experimental and unstable [12] until the release of Left 4 Dead. [13] Multiprocessor support was later backported to Team Fortress 2 and Day of Defeat ...
[1] [2] It features tutorial puzzles that teach the player the mechanics of the "time portal". [10] The game is intended to be completed in between 4 and 6 hours. [5] Unlike Portal 2, which it is based on, the game's initial release only featured the single-player mode. [10] A co-op mode was added in a later update. [11]