| Elysion | Nintendo Entertainment System |
JP | 1988-04-28 | developed |
| Nemurenu Yoru no Chiisana Ohanashi | PC Engine / TurboGrafx-16 |
JP | 1993-07-30 | developed |
| Puyo Puyo CD Tsuu | PC Engine / TurboGrafx-16 |
JP | 1996-03-29 | published |
| Tanjou - Debut S | Sega Saturn |
JP | 1996-06-28 | published |
| De-Ja | PC Engine / TurboGrafx-16 |
JP | 1996-07-12 | published |
| Tenchi Muyou! Ryououki FX | PC-FX |
JP | 1996-07 | published |
| Doukyuusei - if | Sega Saturn |
JP | 1996-08-09 | published |
| Akazukin ChaCha - Osawagase! Panic Race! | PC-FX |
JP | 1996-10 | published |
| Sentimental Graffiti - First Window | Sega Saturn |
JP | 1997-04-11 | published |
| Doukyuusei 2 | Sega Saturn |
JP | 1997-07-11 | published |
| Mahou Shoujo Pretty Samy - Osorubeshi Shintai Sokutei! Kakubakuhatsu 5-Byou-mae!! | Sega Saturn |
JP | 1997-08-08 | published |
| Sotsugyou - Graduation S | Sega Saturn |
JP | 1997-09-25 | published |
| Mahou Shoujo Pretty Samy - Heart no Kimochi | Sega Saturn |
JP | 1998-01-29 | published |
| Sentimental Graffiti | Sega Saturn |
JP | 1998-01-22 | published, developed |
| Debut 21 | PlayStation |
JP | 1998-09-10 | published |
| Pia Carrot e Youkoso!! 2 | Sega Saturn |
JP | 1998-10-08 | published |
| Black-Matrix | Sega Saturn |
JP | 1998-11-06 | published |
| Favorite Dear | PlayStation |
JP | 1999-02-25 | published, developed |
| JailBreaker | PlayStation |
JP | 1999-03 | published |
| Friends - Seishun no Kagayaki | Sega Saturn |
JP | 1999-04-29 | published |
| With You - Mitsumeteitai | Sega Saturn |
JP | 1999-07-29 | published, developed |
| Black-Matrix Advanced | Dreamcast |
JP | 1999-09-30 | published |
| Natsuiro Kenjutsu Komachi | PlayStation |
JP | 2000-03-16 | published, developed |
| Kizuna toyuu Na no Pendant with Toybox Stories | PlayStation |
JP | 2000-04 | published |
| Sentimental Graffiti 2 | Dreamcast |
JP | 2000-07-27 | published, developed |
| Sentimental Graffiti 2 - Third Window | Dreamcast |
JP | 2000-07 | published |
| Ningyo no Rakuin | PlayStation |
JP | 2000-08-03 | published |
| Kanon | Dreamcast |
JP | 2000-09-14 | published |
| Mercurius Pretty - End of the Century | Dreamcast |
JP | 2000-11-16 | published |
| Black-Matrix + | PlayStation |
JP | 2000-12 | published |
| Favorite Dear - Junpaku no Yogensha | PlayStation |
JP | 2000-12-07 | published, developed |
| Pia Carrot e Youkoso!! 2.2 | Game Boy Color |
JP | 2000-12 | published |
| Harusame Youbi | Dreamcast |
JP | 2001-03-22 | published |
| Sentimental Graffiti | PlayStation |
JP | 2001-03-29 | published, developed |
| Sentimental Graffiti - Yakusoku | PlayStation |
JP | 2001-03 | published, developed |
| Angel Present | Dreamcast |
JP | 2001-04-12 | published |
| Canvas - Sepia-iro no Motif | Dreamcast |
JP | 2001-04-05 | published |
| Pia Carrot e Youkoso!! 2.5 | Dreamcast |
JP | 2001-06-21 | published |
| Canary - Kono Omoi o Uta ni Nosete | Dreamcast |
JP | 2001-08-23 | published, developed |
| Air | Dreamcast |
JP | 2001-09-20 | published |
| Favorite Dear - Enkan no Monogatari | PlayStation |
JP | 2001-09-27 | published, developed |
| Kanon | PlayStation 2 |
JP | 2002-02 | published |
| Weakness Hero Torauman DC | Dreamcast |
JP | 2002-02-28 | developed |
| Black-Matrix II | PlayStation 2 |
JP | 2002-03 | published |
| Mizuiro | Dreamcast |
JP | 2002-03-07 | published |
| Dousoukai 2 - Again & Refrain | Dreamcast |
JP | 2002-06-27 | published, developed |
| Elysion - Eien no Sanctuary | Dreamcast |
JP | 2002-07-25 | published |
| Pandora no Yume | Dreamcast |
JP | 2002-09-12 | published |
| Interlude | Dreamcast |
JP | 2003-03-13 | published |
| Pia Carrot e Youkoso!! 3 | Dreamcast |
JP | 2003-03-27 | published |
| Pia Carrot e Youkoso!! 3 - Round Summer | PlayStation 2 |
JP | 2003-03 | published |
| Canary - Kono Omoi o Uta ni Nosete | PlayStation 2 |
JP | 2003-04 | published |
| Elysion - Eien no Sanctuary | PlayStation 2 |
JP | 2003-05 | published |
| Majo no Ochakai | Dreamcast |
JP | 2003-06-26 | published |
| Shirotsumesouwa - Episode of the Clovers | Dreamcast |
JP | 2003-06 | published |
| Aikagi - Hidamari to Kanojo no Heyagi | Dreamcast |
JP | 2003-08-07 | published |
| Snow | Dreamcast |
JP | 2003-09-25 | published |
| Sentimental Graffiti - Yakusoku | Dreamcast |
JP | 2003-12-25 | published, developed |
| Tamakyuu | Dreamcast |
JP | 2004-01-29 | published |
| Suki na Mono wa Suki dakara Shou ga Nai!! First Limit & Target Nights - Sukishou! Episode 01+02 | PlayStation 2 |
JP | 2004-03 | published |
| Pia Carrot e Youkoso!! 3.3 | Game Boy Advance |
JP | 2004-04 | published |
| Black-Matrix 00 | PlayStation |
JP | 2004-05-13 | published |
| Gakuen Heaven - Boy's Love Scramble! Type B | PlayStation 2 |
JP | 2004-07 | published |
| Clover Heart's - Looking for Happiness | PlayStation 2 |
JP | 2004-08 | published |
| Friends - Seishun no Kagayaki | PlayStation 2 |
JP | 2004-09 | published |
| Suki na Mono wa Suki dakara Shou ga Nai!! Rain - Sukishou! Episode 03 | PlayStation 2 |
JP | 2004-10 | published |
| Mizuiro | PlayStation 2 |
JP | 2004-12 | published |
| Aikagi - Nukumori to Hidamari no Naka de | PlayStation 2 |
JP | 2005-03 | published, developed |
| Canvas - Sepia-iro no Motif | PlayStation 2 |
JP | 2005-03 | published |
| Kazoku Keikaku - Kokoro no Kizuna | PlayStation 2 |
JP | 2005-05 | published |
| Realize - Panorama Luminary | PlayStation 2 |
JP | 2005-09 | published |
| Gakuen Heaven - Boy's Love Scramble! | PlayStation 2 |
JP | 2006-08 | published, developed |
| Interlude | PlayStation 2 |
JP | 2007-03 | developed |