A cool little overhead shooter game with few elements but can get pretty fun, you control a little guy controlled with W S A and D, you can shoot with the left mouse button, and reload with R. You originally can't see anything unless you shine your flashlight on it. You can shoot zombies before they get you, and you have a health bar to tell how much you're hurt.
When you run out of bullets, before you reload you have an unlimited pistol, but instead of rapid fire you have to click a lot to get any good kills out of it.
Oh yes and there is a score system.
Edit:
To heal yourself grab a red square (medkit) and an ammo box to restore munitions is a yellow box.
To win a level, get to the red room (Safe room)