Kill all zombies before they reach the top of the canyon and wreak havoc on the citizens of Zombville. Kill them all, make money, upgrade your weapon and buy power-ups. Good luck!
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.
When your balloon crash-lands in a wasteland of fowl creatures, its time to survive. Upgrade your weapons, fort, and turrets while you try to fix your balloon.
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!
Humans are all dead and only zombies are alive who have now turned on each other for food. You're one of the zombie factions and must destroy others to survive now.