Get Left 4 Dead 2's New DLC Early By Crossing the Streams
Valve's asking players to test Left 4 Dead 2's Cold Stream campaign. If 20,000 players finish it by Sunday, they'll release the Dead Air campaign early! Coincidentally Left 4 Dead 2 is on sale for $5 on Steam. More »
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- Valve Offer L4D2 DLC Early If Players… Uh Oh - rockpapershotgun
- Valve will release Dead Air early ... if 20k people unlock this Left 4 Dead 2 achievement - joystiq
