From Wikipedia:
Tripwire Interactive is an American game development studio based in Roswell, Georgia, formed by members of the team that created the acclaimed Unreal Tournament 2004 mod, Red Orchestra: Combined Arms. Red Orchestra won top prize in the nVidia-sponsored Make Something Unreal competition. Their first retail product, Red Orchestra: Ostfront 41-45, was released over Valve's Steam service on March 14, 2006. They are also a license of Epic's Unreal Engine 3, which is used in their upcoming title Red Orchestra: Heroes of Stalingrad, scheduled for release in fall 2010.
Tripwire's second game, Killing Floor, was released on May 14, 2009. Like Red Orchestra, this game also began development as a UT2004 mod, later becoming a standalone retail title.
Based in Roswell, Georgia.
Controversy:
Supporting Texas Abortion Ban: The company's CEO John Gibson has openly expressed support via Twitter for the Texas abortion ban (stops termination as early as 6 weeks) and complained about laws that restrict his rights to gun ownership. Public comments on the forum claim Gibson is hypocritical by supporting restrictions on other peoples rights, especially those for women and minority groups, so long as his rights remain intact. Gibson's open support for the ban prompted developers Shipwright Studios (Maneater) and Torn Banner (Chivalry 2) to cut ties with Tripwire Interactive, who released the following statement: "This perspective is not shared by our team, nor is it reflected in the games we create. The statement stands in opposition to what we believe about women's rights." The controversy prompted Gibson to step down as CEO from Tripwire.