The Nightfall Character Pack adds 4 more new and unique playable characters for Killing Floor as Downloadable Content. Once you have bought the pack, they will become selectable in the character selection screen in-game.

Key features:Mr. Foster - "The SuperFantastic life of a day trader and evening attraction at London's premiere karaoke bar". It's a shame no publishers are still alive to pick up Foster's half finished autobiography.

Security Officer Thorne aka "Carnivore" - Horzine pays the bills. The wife is happy because we can eat again. I get to drink again. I'm happy. Salary bonus? Sure! I says. Experimental whats-its? Don't mind if I do. Should a seen it coming.

Lance-Corporal Lee Baron - What are the chances of a major downtown bomb-threat and a flesh eating mutant invasion occurring on the same day? Pretty good, apparentlyMike Noble - When all that is left of your girl-friend are her partly-chewed legs, you have to wonder what sort of rave it had been. The wide variety of monster-things chasing you around in your skeletor costume make that pretty clear.