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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

   Single-player, multiplayer. 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. A port for the Nintendo Switch was included as part of Portal ...

4. List of video game websites - Wikipedia

   en.wikipedia.org/wiki/List_of_video_game_websites

   A video game is an electronic game that involves human interaction with a user interface to generate visual feedback on a video device such as a TV screen or computer monitor. The word video in video game traditionally referred to a raster display device, [ 1 ] but it now implies any type of display device that can produce two- or three ...

5. 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 ...

6. List of Portal characters - Wikipedia

   en.wikipedia.org/wiki/List_of_Portal_characters

   Michael Avon Oeming (young appearance) (Portal 2: Lab Rat) Andrea Wicklund (older appearance) (Portal 2: Lab Rat) Voiced by. Unknown (vocalizations in some music tracks) Doug Rattmann, often referred to as the " Ratman" is a character in both Portal and Portal 2. He was a former scientist working at Aperture and one of the few who survived when ...

7. List of browser games - Wikipedia

   en.wikipedia.org/wiki/List_of_browser_games

   This is a selected list of multiplayer browser games.These games are usually free, with extra, payable options sometimes available. The game flow of the games may be either turn-based, where players are given a number of "turns" to execute their actions or real-time, where player actions take a real amount of time to complete.