Left 4 Dead 2 is a single-player and multiplayer co-operative survival horror FPS game developed by Valve Corporation. It is the sequel to Left 4 Dead, it was first announced June 1st 2009 by Valve Corporation at Microsoft's E3 2009 press conference.

As of January 24, 2010, Metacritic gave Left 4 Dead 2 a metascore of 89 out of 100.

The Left 4 Dead 2 multiplayer demo was released on October 28th, for those who preordered. It was then made available to the public on November 3rd. [1][2]

The sequel picks up one week after the events of the first game (three weeks after the first infection) where The Infection has spread to the southern United States. [3] Left 4 Dead 2 introduces three new Special Infected, new weapons, melee weapons, new items, upgraded Infected, the Uncommon Common Infected, six new campaigns, and three new game modes: Scavenge Mode, Realism Mode, and Mutations which was released along with The Passing DLC.

The four Survivors the players control are Nick, Ellis, Rochelle, and Coach.

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