A free program for Android, by Big Fish Games.

Tower Defense Heroes: PvP Battle is a strategy game that combines elements of tower defense (TD), puzzle, action, and RPG. In the game, you can summon and collect heroes, and they will fight for you. You can also merge the heroes to get more powerful ones.

This TD game is all about strategy. You will need to use the heroes’ ultimate skills to fight the enemy and defend your tower from the attack. The gameplay is action-packed, and there are tons of enemies and bosses. You will need to grow your army and defeat the enemies to get the resources and power.

There are different kinds of enemies, such as warriors, archers, mages, etc.