Turtle Rock Studios

Turtle Rock Studios is an independent game development studio based in Lake Forest, California. Founded in 2002 by Michael Booth, the studio is recognized for its innovative approach to cooperative multiplayer gaming and has a strong legacy in first-person shooter titles. After a brief acquisition by Valve, Turtle Rock re-established itself in 2009 and has since developed several notable games. The studio gained fame through its collaborations with Valve, contributing to the *Counter-Strike* franchise and co-developing the *Left 4 Dead* series. Their major titles include *Left 4 Dead* and *Left 4 Dead 2*, *Evolve*, and *Back 4 Blood*, the latter being a spiritual successor to *Left 4 Dead*. Turtle Rock specializes in full-cycle game development, focusing on design, programming, and publishing partnerships, with expertise in multiplayer mechanics and narrative-driven action. In 2021, the studio was acquired by Tencent, further expanding its reach in the gaming industry.