Killing Floor

Killing Floor 2 is a wave-based first-person shooter built around co-op survival against swarms of mutant specimens called Zeds. Between waves you buy weapons, restock ammo, and lean into class perks, then try to hold together when the larger enemies and boss rounds arrive. The game’s identity is all heavy weapons, chunky gore, and teamwork under pressure rather than a traditional campaign. It is best for players who want repeatable co-op firefights with clear roles and escalating chaos.

Genre

First-person shooter

Length

Variable length