You wake up in an unfamiliar place with your memory lost, and with the help of the goddess Mnamosina, you begin a journey to defeat the dragon. Mnamosina is a hack and slash roguelike game where you defeat enemies and clear dungeons with combo skills that combine attacks and dashes, as well as passive skills. Choose a weapon. After the first battle, three out of four weapons are randomly presented. You can choose the weapon you want to use. Each weapon has different attributes and skills, so choose carefully. Defeat enemies and choose skills. You must defeat all the monsters that appear in each battle to move to the next area. After each battle, you can recover a piece of lost memory to gain or strengthen skills. Defeat the boss. The ultimate goal of the journey is to defeat the dragon that stole your memories. But before that, you must first defeat the dragon's powerful subordinates. The dungeon consists of three stages, each with a boss monster.