Turtle Rock Studios is a video game development company based in California, known for creating cooperative multiplayer games. Founded in 2002, the studio gained recognition for its work on the popular game Left 4 Dead, which was released in collaboration with Valve Corporation. In addition to Left 4 Dead, Turtle Rock Studios developed Evolve, a unique asymmetrical multiplayer game that features a team of hunters battling a player-controlled monster. The studio focuses on innovative gameplay mechanics and engaging player experiences, contributing significantly to the gaming industry.