13 Days In Hell
Can you survive thirteen days in hell? Kill the enemies and survive thirteen days in hell. Shoot down approaching zombies before they come close enough to harm you. You only have access to the shop at the end of each day, so don't waste ammo.
Mouse to aim-and-fire. Use the red dot to determine the perfect moment to fire. Keys 1 to 5 or the mousewheel to select a weapon. Spacebar or R to reload. P or esc to pause game.