Well so much for getting some free Portal 2 DLC in September, but I guess getting it on October 4th is not that bad. Valve announced that they will have the first DLC for Portal 2 available next week called “Peer Review”. It will include some new multiplayer chambers to test as well as a single player and co-op challenge mode. Also availble today is the third and final volume of the Portal 2 soundtrack at the cost of ZERO dollars! So that’s two great Portal 2 related items for free available within a week of each other, not too shabby. Head on over to the Offical Portal 2 site to download the third soundtrack and look for the “Peer Review” DLC next week for PS3, XBOX 360 and PC.

[via Portal 2 Blog]