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.
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.
Survive the night fighting off zombies from your barricade. Survive longer than a day by making use of the daylight hours effectively by repairing your barricade, searching for weapons and looking for other survivors to help repair and defend.
Another Doom style game called "Flatten Horizon" with top view game play. Plenty of monsters, weapons, blood and doom like action in different perspective.
Zombies and ghosts are invading! Defend the local neighborhoods by building an array of towers to shoot at them and open gates to redirect their hungry minds to places of choice.