You are taking the fight to the horde. With your massive arsenal of weapons available from the shop. You are going to kill thousands of zombies and explore the different levels to try help humanity survive the zombie apocalypse.
Use the arrow keys/ W,A,S,D to move around. Press the spacebar to shoot. Press R to reload your weapon. Press Q,E,ctrl or the shift buttons to change your weapons. Kill all the different zombies with your large selection of weapons. From Melee weapons to assault rifles and snipers to a rocket launcher, you will find which weapons you prefer to use the most against certain zombies and situations.