If you like unity 3d shooting games where you have to kill zombies, then you have to play this game. Killing Zombie is another unity 3d "zombie shooting" game where your mission is to kill all zombies and save the entire humanity. Use different kind of weapons like machine guns, pistols and even a samurai sword to eliminate them. So, if you like to play unity 3d horror games with zombies, then, play Killing Zombie and have fun.
To play Killing Zombie, you will use W,A,S,D keys and mouse to move, scroll wheel to switch weapons, E key to pick up, R key to reload, Shift key to run and F key to toggle automatic/semi-automatic shooting mode.