Left 4 Dead Survival Pack Announced

Valve's zombie thriller expanding in 2009
Valve today announced that the first DLC (Downloadable Content) for Left 4 Dead, dubbed the L4D Survival Pack, is due for release this spring and introduces a new multiplayer game mode entitled, Survival, plus two complete campaigns for Versus Mode. A Critic's Choice Edition of the game will hit the store shelves this spring, and will include access to all the content introduced in the L4D: Survival Pack. In related news, Valve announced that the Left 4 Dead SDK (Software Development Kit) will be available this spring and will be free of charge to all owners of the PC version of the game.