| Dragon Knight II | PC Engine / TurboGrafx-16 |
JP | 1992-08-07 | developed |
| Dragon Knight III | PC Engine / TurboGrafx-16 |
JP | 1994-07-22 | developed |
| Mahjong Doukyuusei | Arcade |
JP | 1995 | published |
| Dragon Knight & Graffiti | PC Engine / TurboGrafx-16 |
JP | 1995-03-31 | developed |
| Doukyuusei | PC Engine / TurboGrafx-16 |
JP | 1995-11-23 | developed |
| Nonomura Byouin no Hitobito | Sega Saturn |
JP | 1996-04-26 | published |
| De-Ja | PC Engine / TurboGrafx-16 |
JP | 1996-07-12 | developed |
| Doukyuusei - if | Sega Saturn |
JP | 1996-08-09 | developed |
| Doukyuusei 2 | PC-FX |
JP | 1996-08 | published, developed |
| Dragon Knight 4 | Super Nintendo Entertainment System |
JP | 1996-12-27 | developed |
| Dragon Knight 4 | PlayStation |
JP | 1997-02-07 | developed |
| Dragon Knight 4 | PC-FX |
JP | 1997-03 | developed |
| Kakyuusei | Sega Saturn |
JP | 1997-04-25 | published, developed |
| Doukyuusei 2 | Sega Saturn |
JP | 1997-07-11 | developed |
| Doukyuusei 2 | PlayStation |
JP | 1997-08 | developed |
| Doukyuusei 2 | PlayStation |
AS | 1997-08-07 | developed |
| Doukyuusei 2 | Super Nintendo Entertainment System |
JP | 1997-12-01 | developed |
| Yu-No - Konoyo no Hate de Koi o Utau Shoujo | Sega Saturn |
JP | 1997-12-04 | published, developed |
| Jankyuusei - Cosplay Paradise | Game Boy Color |
JP | 2001-04 | published |
| Lime-iro Senkitan Jun - Meiji Nihon, Otome Sakimorisu | PlayStation 2 |
JP | 2004-03 | developed |