Left 4 Dead 2 is the sequel to the best-selling and critically-acclaimed co-op multiplayer smash from Valve, creators of the Half-Life, Portal, Team Fortress and Counter-Strike game properties. With multiple multiplayer options both on and offline, extensive AI custom functionality, four character options, new melee weapons and more, Left 4 Dead 2 promises to become one of 2009's best games on the PC and set a new benchmark for co-op centric action games.

Left 4 Dead 2 is set at roughly the same time as the original – just after the outbreak that turned most of the population into various zombie mutants. Players assume the role of four new "Survivors," each with their own personality and new dialog. The game leads these "Survivors" through the southeastern region of the US - from Savannah, Georgia through the bayou country, and climaxing in New Orleans’ French Quarter.