Turtle Rock Studios
Michael Booth, is an independent game developer in the business of creating original entertainment titles and providing consulting services to the digital entertainment industry.
The studio worked in collaboration with Valve, producing titles such as Counter-Strike: Condition Zero, Counter-Strike (Xbox), as well as several maps for Counter-Strike: Source.
Turtle Rock Studios announced on March 16, 2006 they would be working with Valve on a "Source project", later to be named Left 4 Dead, which would be utilizing Valve's Source Engine and Steam. Press release.
On January 10th, 2008, Turtle Rock was acquired by Valve and renamed as Valve South. You can read the Press Release here.
Since March 2010, Turtle Rock Studios was split from Valve and later in 2021, TRS's parent company, Slamfire Inc., was acquired by Tencent. Since then, they have developed and released games such as Evolve, and Back 4 Blood (which is Left 4 Dead's spiritual successor), both new games received mixed reviews from fans, and between mixed to mostly positive reviews from critics.
|2003||Co-developed with Ritual.|
|2008||As Valve South|
|2009||: The Passing|
|2010||Left 4 Dead: The Sacrifice
Left 4 Dead 2: The Sacrifice
|As Turtle Rock Studios|
|2016||Evolve Stage 2
Face Your Fears
|2019||Face Your Fears 2
Journey of the Gods
|2021||Back 4 Blood||Spiritual successor to Left 4 Dead and Left 4 Dead 2.|
Turtle Rock Studios is responsible for the artificial intelligence behind CS_Bot, used in Counter-Strike: Condition Zero and Counter-Strike: Source. CS_Bot was later updated by Valve for Counter-Strike: Global Offensive and Counter-Strike 2, and was used as the basis for NextBots in the Left 4 Dead series, Team Fortress 2, and .