This is an excellent shooting game where you need to fight zombies. You have a barricade and zombies can not get too close, but they will try and break the barricade. You must shoot them before they do it because without tha barricade you're quite defenseless. Use your mouse to aim and shoot, A - S - D - W keys to move and Space to switch weapons (you have several ones). When the night is over, zombies go back to their graves and you have some time for maintenance. You can distribute the time you have to repair the barikade, search for new weapons and search for survivors that may help you with your fight.