For all those that were waiting for a last-minute present for their friends, family - or themselves - it is time for a Flash sale on Steam. 75% off Killing Floor, the Killing Floor Bundle and all the Killing Floor DLC. Go grab it on the Steam store page: http://store.steampowered.com/app/1250/! This only runs for about 12 hours... through to 5am Eastern Time tomorrow morning (Dec 24th).