You are trapped in a space lab full of zombies. Can you shoot them all and escape before it's too late? Explore the place, take your gun and shoot the zombies to kill them all. No mercy for those monsters!
Use the arrow keys or WASD to move, Space to jump, Shift to run, LMB to shoot, RMB to zoom, the key numbers to switch weapons, P to pause, and E to use items.