It's now as much a part of Christmas as monster trucks, the Killing Floor Christmas update. This time Tripwire have released a Moonbase map that will have you fending off zombies in low gravity.
The update brings with it a new map - the Moonbase - and also a new weapon, the Schneidzekk Medic Gun "for all the healers-who-like-to-kill out there".
Tripwire have also teamed up with the makers of Dwarfs!? to offer a special weapon, the Dwarfs!? Axe. To get it you need to own the game or collect 40,000 gold in the free-to-play version of the game.
There'll be new achievements, old achievements, and the chance to unlock the Bad Santa costume.