Game Informer -
1 Oct 2021 23:00

Founded in 2002, Turtle Rock Studios got its start working on the Counter-Strike and Half-Life series alongside Valve. However, the studio truly made its name through its first all-original game, a cooperative zombie shooter called Left 4 Dead. Valve was so impressed by the project that it acquired Turtle Rock in 2008 and released the game later that year. Left 4 Dead was a smash hit for the developer, and both paved the way for the co-op shooting genre and contributed to a zombie explosion in g...
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