The world apocalypse, all the people began to flee in your camp on the outskirts of the city. All the men who know how to hold a weapon went into your defensive squad. You need to correctly arrange the defense forces, and the waves beat the enemy attacks. Zombies will attack in droves, with each new level they will become stronger. If you miss too many mutants, the chances of survival of humanity is very reduced. For every kill, you will be given the money that can be spent on the purchase of arms and ammunition.