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* Explore the horrific intensity of the Left 4 Dead universe in a new way, with new Survivors, a new story and new dialogue
* Battle the zombie mutants in tense melee combat that will have you brandishing weapons that include an axe, chainsaw, frying pan and baseball bat
* Procedurally change weather effects, world objects and pathways, as well as tailor the enemy population, effects and music with the new AI Director 2.0
* Fight for your life in a journey that will take you across the southeastern United States, from Savannah, Georgia, to bayou country to the French Quarter of New Orleans
* Enjoy more cooperative campaigns and more campaigns and maps for Versus game modes, plus support for Survival mode right out of the box
* Rely on stats, rankings and an awards system in exciting collaborative play
* From the makers of Half-Life, Portal, Team Fortress and Counter-Strike