Valve announced today that they’re interested in putting up the Dead Air map for the upcoming Cold Stream DLC early. The catch? 20,000 people have to earn the “Stream Crosser” achievement in Left 4 Dead 2, accomplished by surviving a campaign of Cold Stream on any difficulty.
If that happens, then Dead Air will be released on July 22nd.
Also, if you’d like to BUY Left 4 Dead 2 in order to get the achievement, it’s on sale today for only $4.99 on Steam!