Back 4 Blood is an exciting cooperative first-person shooter from the creators of the acclaimed Left 4 Dead franchise. You find yourself at the center of a war against the Ridden. These once human hosts of a deadly parasite have turned into terrifying creatures who seek to destroy the remnants of civilization. With the extinction of humanity at stake, it's up to you and your friends to battle the enemy, wipe out the Ridden, and reclaim the world.