You play as Chell as you wake up in some kind of testing facility. You use a device called a portal gun to make it through test chambers. The portal gun can place an entrance and exit to a portal on certain walls. Ingenious puzzles are created using this portal gun, companion cubes, switches and physics.
Taken out of the
Orange Box and given it's own release. It features 14 new puzzles.
Out of 3 user(s) who marked the game in their log:
