Left 4 Dead 2

 
Left 4 Dead 2 is a thrilling cooperative first-person shooter set in a post-apocalyptic world overrun by zombies. You and up to three other players team up to survive through intense campaigns, fighting off hordes of the undead with a variety of weapons and tools. The game is known for its fast-paced action, strategic gameplay, and dynamic AI director that adjusts the difficulty based on your performance, ensuring every playthrough is unique and challenging.

Release date: November 17, 2009
Genre: First-person shooter, Survival horror
Developer: Valve
Publisher: Valve