In the video game Portal, the player assumes the role of a test subject who is trying to escape from a laboratory managed by a robot named GLaDOS.

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  • Samanta Blumberg
  • Jan 02, 2022
The player is initially armed with a portal gun, a device that can create links between two spaces to allow for travel between them. The player must solve a series of puzzles in the laboratory. Portal has been praised for its innovative gameplay and has been praised as one of the most influential games of its decade.


The player is initially armed with a portal gun, a device that can create links between two spaces to allow for travel between them. The player is challenged to solve a series of puzzles in the laboratory. Portal's gameplay is unique. The player is offered only basic instructions about the game. The player is not told that there are four different types of portals, nor that they can be used to create a link between two spaces. The game does not require any explanation about the game's story.

The player-character of Portal is Chell, an unwilling participant in a series of tests conducted by the Aperture Science Enrichment Center for Aperture Science Innovators. The tests are overseen by GLaDOS, an artificial intelligence.

The game begins with Chell waking up in a room with no visible doors, and a computer monitor attached to the wall. GLaDOS's "face" appears on the monitor, and informs Chell that she is to complete a series of test chambers to be granted freedom. Chell quickly discovers the Aperture Science Handheld Portal Device, or Portal Gun, that allows her to create portals that connect two points in space.

Through the course of the game, GLaDOS taunts Chell with promises of cake if she completes all the tests. Shortly after the first test, Chell is informed that the "offices and laboratories" of the Enrichment Center are now in lockdown, and that the only way to escape is to complete all the tests.

GLaDOS informs Chell that the first test is complete after she reaches the exit of the room. The chamber is flooded with neurotoxin, and Chell quickly enters the next chamber to find that it is sealed shut. GLaDOS informs Chell that "the cake is a lie", and that the next portal she enters will lead her to the next test.

The game is played with mouse and keyboard, and consists primarily of puzzles that involve the player using the Portal Gun to teleport Chell to otherwise inaccessible locations, which are often blocked by lasers, energy fields, and other obstacles.

The game is available on Windows, Mac OS X, and PlayStation 3.


Portal is a game that emphasizes gameplay over graphical quality. The game is not graphically intense, but it does not need to be. The game's setting is the only one that the player sees for the entirety of the game, which allows for an immersive experience.


Portal has plenty of replayability. The game offers a level editor that allows players to create their own maps. The game also offers a set of challenges that will be difficult for most players. The game can also be beaten in less than two hours, which is short enough to allow the player to beat the game many times over.


Portal is a first person puzzle game developed and published by Valve corporation. The game was released as a pack-in with the Orange Box on October 10, 2007 for Windows, Mac OS X, and PlayStation 3.

The game consists of a series of puzzles, taught to the player by a sentient artificial intelligence named GLaDOS. The puzzles are solved using the Aperture Science Handheld Portal Device, more commonly known as the Portal Gun, which can create two portals that the player can use to teleport between.

  • Portal is a challenging game, but it is also fair
  • Portal is easy to learn, but hard to master
  • The game has a lot of replay value
  • Portal is not available on many platforms
  • The game does not have multiplayer