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  2. Portal 2 - Wikipedia

    en.wikipedia.org/wiki/Portal_2

    Valve announced Portal 2 in March 2010, and promoted it with alternate reality games including the Potato Sack, a collaboration with several independent game developers. After release, Valve released downloadable content and a simplified map editor to allow players to create and share levels.

  3. Portal (video game) - Wikipedia

    en.wikipedia.org/wiki/Portal_(video_game)

    Single-player. Portal is a 2007 puzzle - platform game developed and published by Valve. It was released in a bundle, The Orange Box, for Windows, Xbox 360 and PlayStation 3, and has been since ported to other systems, including Mac OS X, Linux, Android (via Nvidia Shield ), and Nintendo Switch . Portal consists primarily of a series of puzzles ...

  4. Portal (series) - Wikipedia

    en.wikipedia.org/wiki/Portal_(series)

    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.

  5. Source (game engine) - Wikipedia

    en.wikipedia.org/wiki/Source_(game_engine)

    Source is a 3D game engine developed by Valve. It debuted as the successor to GoldSrc in 2004 with the releases of Half-Life: Source, Counter-Strike: Source, and Half-Life 2. It is most well-known for its usage by Valve, but the engine has been used both by small teams and individuals to create modifications of Valve games, [ 1] and other ...

  6. Valve releases new, free 'Portal' game that 'isn't Portal 3'

    www.aol.com/valve-releases-free-portal-game...

    Portal fans rejoice — or rather, bask in the mixed feelings of getting a new game set in their beloved franchise's universe that isn't at all what they've been clamoring for over the past decade ...

  7. Source 2 - Wikipedia

    en.wikipedia.org/wiki/Source_2

    License. Proprietary. Source 2 is a video game engine developed by Valve. The engine was announced in 2015 as the successor to the original Source engine, with the first game to use it, Dota 2, being ported from Source that same year. Other Valve games, such as Artifact, Dota Underlords, Half-Life: Alyx, and Counter-Strike 2, have been produced ...

  8. Portal-maker Valve cryptically announces free-to-play game - AOL

    www.aol.com/news/2011-06-20-portal-valve-free...

    It's only been just over a week since Valve brought five fancy free-to-play games to Steam, its digital games distribution service. And already the developer slash online marketplace curator has ...

  9. List of level editors - Wikipedia

    en.wikipedia.org/wiki/List_of_level_editors

    Valve Hammer Editor: Half-Life 2 Left 4 Dead 2 Portal and other Valve games: For the Source Engine: Vulcan: Marathon: Rewritten and became Forge: War Engine, The: War Game Construction Kit: Released by ASCII on FM-78 in 1983: Warcraft II Map Editor: Warcraft II: Warcraft III World Editor: Warcraft III: Reign of Chaos Warcraft III: Frozen Throne ...