A new Back 4 Blood expansion is out now, and it's called River of Blood - that's laregly due to the tremendous amount of zombie juice you'll be spilling in this new story act of the co-op game. With five new chapters, a selection of new weapons and cards, and a plucky new cleaner named Tala, there's plenty to dive into with this latest expansion. Read the rest of the story... RELATED LINKS: Back 4 Blood October update adds new horde UI and No Hope matchmaking Back 4 Blood Children of the Worm lets you play as a deranged prophet Back 4 Blood DLC is adding some new low-tech weapons