Master of Monsters is a turn-based strategy game where you choose one of five different wizards to fight against other wizards for domination of the land after their master's death. You can play two campaigns against the computer, where you must defeat all enemy wizards on each map and collect surviving units for the next battle. You can also play all maps with up to four human players in individual battles.
In every battle, your goal is to defeat all other wizards and conquer the land (in campaigns, you have limited time to achieve this). Your wizard and monsters gain experience from fighting, and each monster has unique abilities that differ greatly. The movement of monsters is also affected by terrain types - flying monsters can move freely, while others are restricted to specific environments. You can summon up to 30 monsters per battle, but the number of monsters you can summon each turn depends on your MP and controlled towers.