Left 4 Dead 2 is the sequel to the best-selling and critically-acclaimed cooperative multiplayer smash from Valve, creators of the Half-Life, Portal, Team Fortress and Counter-Strike game properties. Left 4 Dead 2 promises to become one of 2009's top-selling games and set a new benchmark for co-operative action games. The title adds melee combat to the award-winning L4D style of play, with items such as a chainsaw, frying pan, axe, baseball bat, and more.