Zombie Attack is a action game where you have to build defense and survive wave of zombies attack, upgrade your weapons and defense to defeat variants of zombies. Zombie Attack, zombie game, action game, defense game, survival game, HTML5 game, mobile game, shooting game, strategy game, zombie apocalypse, base building, upgrade, weapons, dynamite, dynamite use, WASD, joystick, adventure, battle, best, defense, gun, skill, shooting