Madou Monogatari ARS is a prequel to Madou Monogatari 1-2-3, like Madou Monogatari 1-2-3, it is a trio of first-person dungeon crawlers. Each chapter is devoted to a different playable character.

A prequel to Madou Monogatari 123 to explain how Arle Nadja obtained her powers, how Schezo Wegey became a dark wizard, and how Rulue fell in love with Satan. The game retains its first-person dungeon crawler gameplay, featuring one character's story per disk.