Zombie Tower Defense 4 is a great free online game. Prepare for the new fight against the undead's waves and become the winner. You are forced to clear all of them if you want to protect everybody in the town. There is a path and it also the track that your foes use to invade the most important place. Do not allow them to reach the end of the way or you will lose! Before they come, you will have a few minutes to build turrets. If you earn more coins, you can purchase lots of better weapons from the shop. Good luck!