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The mod later went through the Steam Greenlight process and was accepted due to the mod's concept. [9] [6] The mod was released on Steam for free on April 18, 2014, for Microsoft Windows, OS X, and Linux platforms. [12] [13] Considering that it is a modification, users must own Portal 2 to play Thinking with Time Machine.
Portal 2 is a 2011 puzzle-platform game developed by Valve for Windows, macOS, Linux, PlayStation 3, and Xbox 360.The digital PC versions are distributed online by Valve's Steam service, while all retail editions are distributed by Electronic Arts.
It debuted as the successor to GoldSrc in 2004 with the releases of Half-Life: Source, Counter-Strike: Source, and Half-Life 2. Valve used Source in many of their games in the following years, including Team Fortress 2, Counter-Strike: Global Offensive, Dota 2, and the Portal and Left 4 Dead franchises.
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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 game sold over 10 million copies and was met with acclaim. Valve released two subsequent episodes for Half-Life 2 and later packaged those games together with the puzzle game Portal and the multiplayer shooter Team Fortress 2 in a collection known as The Orange Box. [6]
Though direct sales from Steam are unknown, the Potato Sack ARG helped to boost sales of the independent games. The whole Potato Sack promotion was the second-highest selling compilation on Steam in the week prior to Portal 2 ' s release, following Portal 2 itself and ahead of the Potato Sack/Portal 2 bundle. [22]
Video game journalists have praised the presentation of "The cake is a lie" in Portal as a well-executed example of environmental storytelling. [ 29 ] [ 30 ] Ars Technica editor Johnathan Neuis said that "the cake is a lie" was one of the strongest inside jokes in gaming since " All your base are belong to us ". [ 31 ]