Killing Floor 2, developed and published by Tripwire Interactive, is a first-person shooter video game that immerses players in a chaotic, cooperative gameplay experience. Released for the PlayStation 4 in November 2016, the game is a sequel to 2009's Killing Floor and transports players to continental Europe where they must fight against hordes of gruesome zeds, a result of a failed experiment by a biotech firm. The game features intense gore, a unique blend of weaponized combat, and a dynamic multiplayer mode that includes a six-player cooperative mode and a twelve-player PvP mode.