Silent Möbius: Genei no Datenshi is a hybrid graphic adventure and RPG based on the manga Silent Möbius and its anime adaptations. It features an original plot set in the world of the original work and follows the main characters' battles against malicious creatures known as Lucifer Hawks.

Players control a team comprised of three of the anime's protagonists: Katsumi Liqueur, Kiddy Phenil, and Nami Yamigumo. Outside of battle, players explore 3D environments in graphic adventure style using a mouse cursor and are able to use it to move their characters or interact with items and characters. Exploration is peridocally interrupted with turn-based RPG battles, in which players control the full party and make use of each character's unique skills. Unlike most RPGs, in which characters have levels and earn experience, here it's the players' weapons which gain experience and which grow in power with use. Each character has several different weapons available, each of which has its own experience pool.