Master of Defense is a strategy game where you have to take on the role of a hero, who has been chosen to save the kingdom from attacks by hordes of monsters.
The game´s objective is to protect against monster attacks and stop them taking the castle. To do this you must build towers along their path and attack them with spells.
If you defeat the monsters you´ll get a reward. You´ll get a reward for the death of each monster and a final bonus for each attack. To guarantee your victory you should invest knowledge into your tower design, replace old ones and update those you have, increasing your power to attack with fire, speed and from a distance.