A free program for Android, by Raycast Studio.

A free and action-packed FPS game with multiple game modes and challenging missions. Play the campaign mode, and fight against different hordes of zombies, or take on the zombie survival mode, where you must survive in the city.

The gameplay is very intuitive, with simple controls and easy-to-use guns, you can get started right away. However, you will need to earn some money in order to be able to buy different weapons and upgrades.

The graphics are highly detailed and realistic, and the sound effects are perfect for giving you the feeling of being in the middle of a zombie attack.