Left 4 Dead: Survival Pack is a free DLC for Left 4 Dead. It adds a new multiplayer-mode: Survival. On overall 16 maps the players face enemy waves which get stronger over time. The goal is to survive as long as possible.
Additionally it unlocks the two campaign maps "Death Toll" and "Dead Air" for the Versus mode and features a few balance improvements and bug fixes.
[source:mobygames]
Distribution : Retail - CommercialPlatform(s) : PC (Windows) -
Xbox 360 (X360)
Links