Newsbrief: Independent developer and publisher Tripwire Interactive has sold 1.1 million copies of
Killing Floor since the standalone version of the co-op first-person shooter released for PC in 2009.
The studio says the game, which began as an
Unreal Tournament 2004 mod that debuted in 2005, is still selling strongly despite its age. Georgia-based Tripwire has also sold nearly 2 million downloadable content packs for
Killing Floor.
Tripwire's PC games, which include the
Red Orchestra series, have sold more than 2 million copies so far since the company was founded in 2005. It will release
Rising Storm later this year, and has begun publishing externally developed titles like ACE Team's
Zeno Clash on PC.
