Tripwire Interactive has released a brand new trailer for their Twisted Christmas 2011 event, which is set to feature a ton of awesome Holiday content later this month.
Perhaps more exciting than the trailer embedded above is that from now until Sunday, December 11th, Killing Floor has gone entirely free to play in an extended free to play weekend. Hopefully, players will get a chance to see what Killing Floor has to offer them this weekend and if you decide to purchase the game, there's never been a better time.
Killing Floor is going to be 75% off this weekend, bringing the price down to a very affordable $4.99. Check it all out on Steam at http://store.steampowered.com/.