Awakening in the ruins of the old Aperture Science facility, you once again take control of Chell, armed with the iconic portal gun. Guided (and sometimes misled) by the bumbling AI Wheatley, you must navigate deadly test chambers, solve mind-bending puzzles, and survive the return of the sarcastic and sinister GLaDOS.

As the facility crumbles around you, the journey uncovers Aperture’s strange history, eccentric founder Cave Johnson, and experiments gone horribly wrong.

Portal 2 is a witty, clever, and often hilarious sci-fi adventure where thinking with portals is your only escape.