Portal 2 Announced

Valve, creators of best-selling game franchises (such as Left 4 Dead, Counter-Strike and Half-Life) and leading technologies (such as Steam and Source), today announced Portal 2 for shipment this coming holiday season.

Portal 2 is the sequel to 2007's Portal, which won 70 industry achievement awards.

For more information, please visit www.steamgames.com

Content from Steam.