Here’s something that isn’t common among downloadable content: free. Valve will be releasing the first DLC for Portal 2 this summer for all platforms and it won’t cost gamers a penny.
New test chambers will be added for both single and co-op play, as well as a challenge mode and leaderboards.
Portal 2 has been out since April 19th and is the fastest selling Valve game since Half-Life 2 back in 2004. Portal 2 is currently available for PC, Mac, XB360 and Playstation 3.