Back 4 Blood: Ultimate Edition on PS4 is a cooperative first-person shooter where you and up to three teammates fight hordes of mutated zombies called the Ridded as Cleaners. Choose from a diverse roster of Cleaners with unique abilities, build card-based loadouts, and battle through intense campaign missions across post-apocalyptic America. The Ultimate Edition includes the full game, all three major DLC expansions, plus deluxe and classic weapon packs.