Devicereign is a mix between a first person perspective adventure game and a third person perspective tactical RPG in the battle parts. The game was released for Playstation and Saturn.

Kumono Seishiro Hiigari and Toya are students who spend their time during drying. Nothing unusual so far, except that their girlfriend Kasumi, daughter of a scholar of German origin who died in unclear circumstances, has a power that she is not aware and that will lead her and her two companions, supernatural in a struggle against an international firm called Dice. But what kind of research (on behalf of that company) was therefore his deceased father?