"Back 4 Blood" is a thrilling first-person shooter created by members of the "Left 4 Dead" development team, in which you find yourself in the center of a war against the "worms". Once human, they are the hosts of a deadly parasite that has turned them into terrifying creatures bent on devouring the remnants of civilization. With humanity on the brink of extinction, it is your responsibility to fight the enemy, exterminate the "worms" and reclaim the world. Co-op Campaign Fight your way through a fast-paced, dangerous world in a co-op campaign of up to 4 players, where you and your friends will have to work together to survive and complete increasingly difficult missions. You can lead your team to victory by playing with up to 3 of your friends online or alone. Choose from 8 "Cleaners" that you can modify to use a range of deadly weapons and items. Devise a strategy to defeat the ever-evolving enemies that seek to annihilate you. Multiplayer Play together or against friends in PVP mode. Become a "cleaner" with special abilities or switch sides and play as the dreaded "worm". Both sides have unique weapons, aptitudes, and special abilities. Unique gameplay A new rogue-lite card system that will give you a different experience every time. You'll get control over creating custom decks and the ability to take on increasingly difficult fights." Game Director" that adapts to player actions and delivers exciting fights, unique gameplay variety, and ever-growing hordes of "worms", including mutated 6-meter bosses.