Lennus is a Japanese-style action RPG that follows the story of Farse, a hero tasked with reuniting the four islands of Andell, which have been separated by a curse. With the help of three Terranos, Farse must find special magic orbs for each island to restore balance to the continent.
Gameplay involves controlling a party of up to four characters, including Farse and three selectable Terranos, as they explore the world and battle random enemies and bosses in turn-based combat. The twist is that special attacks and magical spells don't consume magic points but instead reduce hit points. Players can collect mini-bottles containing potions to heal their characters, and equip various magical artifacts to access eight different elements of magic.