With its humble beginnings as a modification, Killing Floor, under the wing of Trip Wire Interactive, has gone on to sell more than a million copies at retail. It's no accident either as it's a gritty, addictive co-op zombie killer that's not to be missed. If you've missed out on the fun thus far, as Steam's Midweek Madness title, it's 85% off until 4 PM PST today.
Congratulations to everyone who's been a part of its success!
- 1.1 MILLION copies of Killing Floor sold on PC in 2 and a half years
- Nearly 2 million Killing Floor DLC packs sold
- 45 MILLION hours of Killing Floor played to date
- 440 MILLION Zeds have been dispatched in Achievements alone - including more than a quarter-million Christmas Santa
- Zeds are being killed by you at the rate of over 20,000 an hour!
- Hundreds of custom maps have been created by the community