Downloadable Content

DLC (Downloadable Content) for Left 4 Dead has been confirmed by Valve Corporation as of February 5, 2009. The content will be offered to both PC and Xbox 360 players, and is a free addition to the game. It will be available through Steam and Xbox LIVE. The pack has been dubbed the "Survival Pack". This pack, which is to be released in the Spring of 2009, will...


 * Make the Death Toll and Dead Air campaigns available for versus mode.
 * Add a new multiplayer gametype; "Survival", which will put the Survivors against waves of the Infected.
 * Survival mode will have twelve available maps, though whether all are new or existing is yet to be confirmed.
 * A Source Software Development Kit will be released, allowing the creation of custom Left 4 Dead campaigns which players will be able to find via the matchmaking system. However, this feature will only be released for free to the PC version. Xbox 360 players will have to purchase it.