| Gals Panic SS | Sega Saturn |
JP | 1996-09-27 | developed |
| Go III Professional - Taikyoku Igo | Sega Saturn |
JP | 1997-08-01 | developed |
| Mahjong Haou - Jansou Battle | PlayStation 2 |
JP | 2001-01 | developed |
| Mahjong Haou - Dankyuu Battle | PlayStation 2 |
JP | 2002-10 | developed |
| Mahjong Haou - Taikai Battle | PlayStation 2 |
JP | 2003-09 | developed |
| Mahjong Haou - Shinken Battle | PlayStation 2 |
JP | 2004-05 | published, developed |
| Toudai Shougi - Jouseki Dojo Kanketsuhen | PlayStation 2 |
JP | 2004-09 | published |
| Saikyou Toudai Shougi Special II | PlayStation 2 |
JP | 2005-04 | published, developed |
| Mahjong Haou - Battle Royale | PlayStation 2 |
JP | 2005-07 | published, developed |
| Mahjong Haou - Dankyuu Battle II | PlayStation 2 |
JP | 2006-04 | published, developed |
| Saikyou Shougi - Gekisashi Special | PlayStation 2 |
JP | 2006-08 | published, developed |
| Mahjong Haou DS - Dan-Kyuu Battle | Nintendo DS |
JP | 2007-09 | published |
| Umezawa Yukari no Yasashii Igo | Nintendo DS |
JP | 2008-01 | published, developed |
| Mahjong Navi DS | Nintendo DS |
JP | 2008-05 | published, developed |
| Shogi World Champion - Gekisashi Portable | PlayStation Portable |
JP | 2010-04-15 | published, developed |
| Tenchou no Igo | PlayStation 3 |
JP | 2013-04-25 | published |