Dead Frontier - Dead Frontier is among the few zombie based video games that you can obtain in your web browser and for free.

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.

Xonotic - Xonotic is a free (GPL), fast-paced first-person shooter that works on Windows, OS X and Linux.

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.

Rage - Rage Software, also Rage Games and FX Digital Network, was a British video game developer.