A great combination of zombie shooting and 'match-three' puzzling with an atmospheric (and bloody!) horror theme. Match up and pop the monster heads before they reach the barricade. Use grenades to get out of a tight spot.
Another Doom style game called "Flatten Horizon" with top view game play. Plenty of monsters, weapons, blood and doom like action in different perspective.
A top-down shooter with over 25 weapons and 50 levels. These zombies are faster and more aggressive than usual. Choose your hero and shoot down those brain dead fools.
The world has gone to hell and the zombies are taking over. Play as both human and zombie in which you can only interchange between human and zombie 5 times.
Protect your radio transmitter from a zombie apocalypse! You and your friends are stuck in a small town with your supplies running out. The radio transmitter on the roof of your building is your only hope for salvation!