Chell, a test subject from Aperture Laboratories, attempts to escape the facility with the guidance of Wheatley, a clumsy and talkative personality core who mistakenly awakes GLaDOS, the mad and murderous central AI of Aperture, who strongly interferes with the breakout.
Think With Portals
Did You Know?
Cave Johnson's face is based on the appearance of Portal 2's Lead Animator, Bill Fletcher, and his assistant Caroline's was inspired by that of Valve Visual Designer, Laura Dubuk. In a hidden room you can see a portrait of the two of them created by Jeremy Bennett, another artist at Valve (Caroline's was artistically aged because Dubuk is a good deal younger than her in-game counterpart). See more
Portals moving would cause reality problems, and so the game cuts any portals that do so. However one level requires you to put portals on moving surfaces. See more
Good work getting this far, future-starter! That said, if you are simple-minded, old, or irradiated in such a way that the future should not start with you, please return to your primitive tribe and send back someone better-qualified for testing.
The main menu background changes to reflect the most recent stage of the game you've played. See more
Cara Mia Addio! (Turret Opera)
Music by Mike Morasky
Lyrics by Ellen McLain
Performed by Ellen McLain See more