Killing Floor Official Mod Revealed & Free Content Pack Now Available

Premier videogames publisher Iceberg Interactive and developer Tripwire Interactive have yesterday released a huge free content pack for Killing Floor named Level Up, as well as the Defence Alliance mod. Killing Floor was released over Steam earlier this year and has been one of the its best selling shooters, triggering Iceberg Interactive to take over European retail release for the exciting co-operative Horror First-Person Shooter (FPS).