Border Of Zombie: Slaughter

Many people managed to escape and hide in the vast complex of all the zombies and monsters that inhabited the earth! When monsters found where people are, they decided to destroy everything and kill people! But people were able to create a barricade that will hold them back but the more monsters and more difficult to keep those under great pressure of barricades can break down and people will be in danger, and for that you put these barricades to protect!