Game Night!: This weekend! https://www.facebook.com/events/317792721696252/
Like Left 4 Dead, this game is based on some kind of Apocalypse.
Other than L4D this game is a bit slower, but man oh man is it tough. It requires a lot of team work to survive, and of course a lot of FPS skill.
You can spend hours playing this game, as things keep on staying intense. That is what I love about survival horrors.
Thanks to Steam, this game will only keep on improving, and the community is also quite large.
I would recommend this to anyone.
Game Traits applied to Killing Floor (PC) by ViGotH