Japanese Board/card game hybrid series by NEC Interchannel. The series debuted with a japan only release on the Sega Saturn. This game, Culdcept, was eventually ported to the Playstation and DS. The second entry Culdcept II was released on the Dreamcast and ported to the PS2. Confusingly this second game was released in America simply as Culdcept. The latest entry into the series is the Xbox 360 exclusive Culdcept Saga.
In Japan, (most of) the series is developed by Omiyasoft. The lastest game is Culdcept on the 3DS, developed by Omiyasoft and published by Nintendo.