A free program for Android, by GCenter.
The best of all zombie games is SciFi Survivor. You are a lone survivor after a zombie apocalypse. Your only goal is to survive and fight against all the undead.
You have to build a city to live and protect yourself. You can craft weapons and tools, forage for food, and build a shelter. Your shelter and your town will protect you from the zombies and other undead.
You have to defeat all the zombies and other undead monsters. You have no time to rest. The monsters are everywhere and they will attack you at any moment. Use your skills to fight and survive.