Welcome to Aperture Laboratories
The highly anticipated sequel to 2007's Game of the Year, Portal 2 is a hilariously mind-bending adventure that challenges you to use wits over weaponry in a funhouse of diabolical science.

Using a highly experimental portal device, you’ll once again face off against a lethally inventive, power-mad A.I. named GLaDOS. And this time you won’t be alone. Meet an expanded cast of characters as you think your way through dangerous, never-before-seen areas of Aperture Laboratories.

Break the laws of spatial physics in ways you never thought possible, with a wider variety of portal puzzles and an expansive story that spans a single player and co-operative game mode.


Trailers:

http://www.youtube.com/watch?v=JZD17pQSqUU (Gameplay)
http://www.youtube.com/watch?v=95fym...feature=relmfu (Multiplayer)
http://www.youtube.com/watch?v=4mgRj...feature=relmfu (Less in depth Multiplayer Trailer)


Gameplay:

http://www.youtube.com/watch?v=5THiN8szSKM (Demo Pt. 1)
http://www.youtube.com/watch?v=Bq2mZ...feature=relmfu (Demo Pt. 2)
http://www.youtube.com/watch?v=mGlyQ...feature=fvwrel (Demo Pt. 3)


Screenshots:













Official Website: http://www.thinkwithportals.com/index.php


Release Date: April 11, 2011.

Is it out?

It comes out April 11.