Do you remember that level on L4D2 way back in the summer sale last year? It was only a beta and you needed to play it to get some achievement to get.... something or something. You would be forgiven for not remembering because not much has been said about it since. Until now!
Introducing, Left 4 Dead 2's new DLC! COLD STREAM!
Valve have officially announced the new DLC for their popular zombie killing game will be released on the 24th of July for PC and Xbox 360 alongside a patch making all mutations available at all times!
Check out the official blog (as well as the source below for more details).