| Cross Tantei Monogatari - Motsureta Nanatsu no Labyrinth | Sega Saturn |
JP | 1998-06-25 | published, developed |
| Cross Tantei Monogatari | PlayStation |
JP | 1999-10-21 | published, developed |
| Cross Tantei Monogatari | PlayStation |
JP | 1999-10-21 | published, developed |
| Cross Tantei Monogatari 1 - Kouhen | PlayStation |
JP | 2000-09-28 | published, developed |
| Cross Tantei Monogatari 1 - Zenpen | PlayStation |
JP | 2000-09-28 | published, developed |
| Tantei Jinguuji Saburou - Innocent Black | PlayStation 2 |
JP | 2002-10 | published, developed |
| Tantei Jinguuji Saburou - Kind of Blue | PlayStation 2 |
JP | 2004-04 | published, developed |
| Tantei Jinguuji Saburou - Shiroi Kage no Shoujo | Game Boy Advance |
JP | 2005-01 | developed |
| Jake Hunter - Detective Chronicles | Nintendo DS |
US | 2007 | developed |
| Jake Hunter Detective Story - Memories of the Past | Nintendo DS |
US | 2007 | developed |
| Tantei Jinguuji Saburou DS - Inishie no Kioku | Nintendo DS |
JP | 2007 | developed |
| Tantei Jinguuji Saburou DS - Kienai Kokoro | Nintendo DS |
JP | 2008 | developed |
| Gakkou no Kowai Uwasa - Hanako-san ga Kita!! - Minna no Hanako-san | Nintendo DS |
JP | 2008-08 | developed |
| Theresia | Nintendo DS |
US | 2008-09 | developed |
| Theresia.. - Dear Emile | Nintendo DS |
JP | 2008-09 | developed |
| Tantei Jinguuji Saburou DS - Fuserareta Shinjitsu | Nintendo DS |
JP | 2009-03 | developed |
| Tantei Jinguuji Saburou - Hai to Diamond | PlayStation Portable |
JP | 2009-09-17 | developed |
| Tantei Jinguuji Saburou DS - Akai Chou | Nintendo DS |
JP | 2010-09 | developed |
| Tantei Jinguuji Saburo - Fukushuu no Rondo | Nintendo 3DS |
JP | 2012-10 | developed |