Free ‘Twisted Christmas’ DLC Coming To Killing Floor 14 December

TripWire has revealed that owners of Killing Floor will be getting a Christmas … well, ‘treat’ may not exactly be the right word … but certainly a lot of additional (and free) stuff, gift-wrapped in time for Baby J’s birthday.
‘Twisted Christmas’ will kick off on 14 December and brings with it a horde of Santa-themed fun. A brand new level (Santa’s Evil Lair) and reskinned monsters (so now you’ll be fighting demented reindeer and nasty gingerbread men) are just the tip of the frosted iceberg. TripWire will also introduce 13 new themed achievements, with an unlockable ‘Baddest Santa’ character for anyone who gets ten or more of them.
In addition, there’s a little Team Fortress 2 tie-in action. Anyone who owns both games will get a playable red or blue Pyro character for Killing Floor, and an exclusive Team Fortress 2 white gasmask and tie combo item (pictured below.) If you already own TF2 and purchase Killing Floor any time between now and 4 January, you’ll get those extras.
This trailer should make everything absolutely clear: