Turtle Rock Studios

Turtle Rock Studios (known as Valve South between 2008 and 2010) is an American video game developer founded in March 2002 by Mike Booth. It was acquired by Valve in 2008, but was re-founded in 2010 as a subsidiary of Slamfire Inc. by Phil Robb and Chris Ashton. Turtle Rock Studios is involved in the creation of original titles as well as the provision of consulting services to the digital entertainment industry. The company's most notable games are: the first Left 4 Dead, which was published by Valve; Evolve, which was originally set to be published by THQ but was later published by 2K Games; and Back 4 Blood, which was published by Warner Bros. Games. The founder of the company had worked for Westwood Pacific, and assisted in the development of the Counter-Strike series. The company expanded from six employees to more than seventy staff members from 2011 to 2014 and opened a subsidiary company called Turtle Rock Garage in 2011, which specialized in developing casual and experimental games for platforms such as iPhone, Facebook, and Xbox Live. Tencent acquired the company in December 2021.