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2. 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 ...

3. Portal 2 - Wikipedia

   en.wikipedia.org/wiki/Portal_2

   Portal 2 is a 2011 puzzle-platform game developed by Valve for Windows, Mac OS X, Linux, PlayStation 3, and Xbox 360.The digital PC version is distributed online by Valve's Steam service, while all retail editions were distributed by Electronic Arts.

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. Portal:Video games - Wikipedia

   en.wikipedia.org/wiki/Portal:Video_games

   A video game or computer game is an electronic game that involves interaction with a user interface or input device (such as a joystick, controller, keyboard, or motion sensing device) to generate visual feedback from a display device, most commonly shown in a video format on a television set, computer monitor, flat-panel display or touchscreen on handheld devices, or a virtual reality headset.

6. Portal Knights - Wikipedia

   en.wikipedia.org/wiki/Portal_Knights

   Portal Knights is an independent survival action role-playing video game developed by Keen Games and published by 505 Games. It was first released on Steam on 18 May 2017 and subsequently released for PlayStation 4 , Xbox One , Nintendo Switch , Android , and iOS .

7. Portal (1986 video game) - Wikipedia

   en.wikipedia.org/wiki/Portal_(1986_video_game)

   Portal is a text-driven adventure with a graphical interface published for the Amiga in 1986 by Activision. [citation needed] The writing is by American author Rob Swigart, and it was produced by Brad Fregger. Ports to the Commodore 64, Apple II, and IBM PC were later released. [citation needed] A version for the Atari ST was announced and ...