Tripwire Interactive was launched in 2005, after winning Nvidia's "$1,000,000 Make Something Unreal" contest. We produced our first title (Red Orchestra: Ostfront 41-45) in 2006, followed by Killing Floor in 2009. Next up will be Red Orchestra: Heroes of Stalingrad in 2011. With Killing Floor, we started publishing our own titles, followed by publishing ACE Team's Zeno Clash in 2010, with the latest MSU winner - The Ball - following on. 2011 has brought us the Portal 2 ARG, Dwarfs?! and the release of Red Orchestra 2: Heroes of Stalingrad.