For example, a common maneuver is to place a portal some distance below the player on the floor, jump down through it, gaining speed in freefall, and emerge through the other portal on a wall, flying over a gap or another obstacle. As moving objects pass through portals, they come through the exit portal at the same direction that the exit portal is facing and with the same speed with which they passed through the entrance portal. An important aspect of the game's physics is momentum redirection and conservation. Neither end is specifically an entrance or exit all objects that travel through one portal will exit through the other. The portals create a visual and physical connection between two different locations in three-dimensional space. The portal gun can create two distinct portal ends, orange and blue.
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In Portal, the player controls the protagonist, Chell, from a first-person perspective as she is challenged to navigate through a series of test chambers using the Aperture Science Handheld Portal Device, or portal gun, under the watchful supervision of the artificial intelligence GLaDOS. The second blue portal is carefully created in mid-air, after exiting the orange portal for the first time, destroying the first blue portal in the process. The character builds up speed using two blue portals, to reach an otherwise unreachable area. Portal 2, released in 2011, expanded on the storyline, adding several gameplay mechanics and a cooperative multiplayer mode.Ī more advanced portal technique.
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Excluding Steam download sales, over four million copies of the game have been sold since its release, spawning official merchandise from Valve including plush Companion Cubes, as well as fan recreations of the cake and portal gun.Ī standalone version with extra puzzles, Portal: Still Alive, was published by Microsoft Game Studios on the Xbox Live Arcade service in October 2008 exclusively for Xbox 360. Portal is often cited as one of the greatest video games ever made. GLaDOS, voiced by Ellen McLain in the English-language version, received acclaim for her unique characterization, and the end credits song " Still Alive", written by Jonathan Coulton for the game, was praised for its original composition and humorous twist. It received praise for its originality, unique gameplay and dark story with a humorous series of dialogue. Portal was acclaimed as one of the most original games of 2007, despite criticisms for its short duration and limited story. This gameplay element is based on a similar concept from the game Narbacular Drop many of the team members from the DigiPen Institute of Technology who worked on Narbacular Drop were hired by Valve for the creation of Portal, making it a spiritual successor to the game. The game's unique physics allows kinetic energy to be retained through portals, requiring creative use of portals to maneuver through the test chambers. The player-character, Chell, is challenged and taunted by an artificial intelligence named GLaDOS (Genetic Lifeform and Disk Operating System) to complete each puzzle in the Aperture Science Enrichment Center using the portal gun with the promise of receiving cake when all the puzzles are completed.
Portal consists primarily of a series of puzzles that must be solved by teleporting the player's character and simple objects using "the Aperture Science Handheld Portal Device", a device that can create inter-spatial portals between two flat planes.
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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 is a 2007 puzzle- platform game developed and published by Valve.
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