Left 4 Dead (Series)
Commercial
Left 4 Dead is a cooperative first-person shooter video game with survival horror elements.
Alien Swarm
Free
Alien Swarm is a freeware multiplayer top-down shooter video game.
Killing Floor
Commercial
Killing Floor is a cooperative first-person shooter video game.
Compare Killing Floor with alternatives
Compare Left 4 Dead (Series) and Killing Floor and decide which is most suitable for you.
Compare Killing Floor and Killing Floor and decide which is most suitable for you.
Compare Alien Swarm and Killing Floor and decide which is most suitable for you.