Haarlem, The Netherlands – 10 December 2010 – Videogames publisher Iceberg Interactive and entertainment software developer and publisher Tripwire Interactive are happy to announce that Christmas is coming early for Killing Floor fans with the massive Twisted Christmas event starting next week, just in time for the holidays.

Featuring Christmas themed specimens replacing all of the regular baddies, a brand new level – Santa’s Evil Lair, Christmas themed achievements with a special unlockable character, an all new difficultly level and loads of new achievements this is THE gaming event of the holiday season.

And if a pile of free content wasn’t enough for you, the Killing Floor crew have enlisted the help of a special guest to battle these Yule-tide baddies – Team Fortress 2’s Pyro. And the sharing doesn’t end there as the Pyro will be bringing back a special Killing Floor item to TF2 with him – Mr. Foster’s trademark gas mask and business tie!