Killing Floor

"Killing Floor" is a cooperative survival horror game set in wave-based scenarios. Players fight off hordes of enemies, known as Zeds, using a variety of weapons. The game features a class system, where players can specialize in different roles to better survive the onslaught. As players progress, they can earn money to buy better weapons and equipment for the next wave. The ultimate goal is to survive all waves and defeat the boss Zed.