Call of Duty - Call of Duty is a first-person and third-person shooter series by Infinity Ward.
Left 4 Dead 2 - Left 4 Dead 2 remains the co-operative zombie adventure with all new characters, locations, enemies and also weapons to change in the popular game-play introduced in the unique Left 4 Dead.
Counter-Strike - Counter-Strike is a PC-exclusive FPS video game developed by Valve Corporation.
Tribes Ascend - Tribes Ascend is an Action and a Free First-person Shooter video game created and published by Hi-Rez Studios.
Arma - Experience true combat gameplay in a massive military sandbox.
Dead Frontier - Dead Frontier is among the few zombie based video games that you can obtain in your web browser and for free.