Killing Floor 2, developed by Tripwire Interactive, is a cooperative first-person survival horror game and the sequel to Killing Floor. The game is set in Europe, where a biotech corporation, Horzine, has created military clones that have gone rogue, and now roam the continent. The game can be played by up to six players who work together to kill the boss, while holding out against waves of enemies.

The game features a class system, where players can level up to level 25 and specialize in a particular field of combat. For example, medics have a speed boost and can heal other players, while supports can seal doors. Players can earn money and experience points for killing enemies, allowing them to purchase weapons and equipment from the trader between waves. The more players on the map, the more enemies spawn, and the difficulty level increases accordingly. The game is available on PlayStation 4 and falls under the category of action games.