A free app for Android, by Poltro.

The basic objective of Block Zombie Survival Shooter, a free mobile app, is to survive while battling blocky walking-dead zombies, gathering pixel guns and ammunition, and building fortifications, homes, and other structures. You can construct a variety of things in a shooter. 

You will need to survive, defend yourself from zombie attacks and look for provisions. Try to survive as long as possible and protect all the block guys at the bottom of the screen. Be observant if there are enemies around and make sure you have a game plan to keep yourself alive. Download this app now and enjoy the game!