Zombie Royale Defense is a great zombie tower defense game! Use your powerful Crossbow and hire/upgrade the soldiers to against the zombies and the evil bosses. Defend against 9 different types of enemies in a total of 50 levels. Upgrade weapons, warriors and defensive towers and strengthen the defense. Zombie Tower Defense, Zombie Game, Tower Defense Game, Action Game, Strategy Game, Mobile Game, 50 Levels, Upgrade, Crossbow, Zombie Defense, Best Zombie Game, Free Game, Adventure Game, Skill Based, Defense Game, Shooting, Weapons, Enemies, Bosses, Mobile Gaming