Dead Zed is an FPS where you play a survivor of a zombie apocalypse. Your objective is to defend your position, while you destroy all the zombies who try to come near you. Luckily, you have a good arsenal of weapons to help you.
The controls in Dead Zed are simple. If you slide your finger around the right side of the screen, you can aim your weapon, while on the left, you'll find the buttons to shoot, use the sight, and change your weapon. Your character will always stay in the same place, so you don't have to worry about moving around.
In each level in Dead Zed, you'll have to fight off one or more waves of zombies, which will normally appear from the end of the street. For each level you complete, you'll earn money and experience. This experience will help you unlock new areas to play, while the money will let you buy new weapons and improve the ones you already have in your arsenal.
Dead Zed is a great FPS that offers a perfect gameplay for mobile devices. The game also has good graphics and tons of levels (although you'll have to unlock them as you go).