| name | games | status | region | founded | closed | activity | |
|---|
| Digital Psychosis |
4 | | | | | 1995/2009 | |
| EGenesis |
4 | | | | | 2003/2015 | |
| Genesis Soft |
12 | | | | | 1987/1988 | |
| Genesis Software |
12 | | | | | 1982/1993 | |
| Isis Hathor Digital Productions |
1 | | | | | 1983/1983 | |
| Mississippi State University |
1 | nomoregames | US | 1878 | | 1972/1972 | The university was chartered as Mississippi Agricultural & Mechanical College on … |
| Nemesis |
7 | | | | | 1984/2004 | |
| Oasis Games |
6 | | | | | 2010/2019 | |
| Oasis Software |
10 | | | | | 1983/1992 | |
| Psygnosis |
318 | bought | UK | 1984 | 1999 | 1985/2015 | HQ: Liverpool, England Bought by SCEE in 1995 and renamed to SCE Studio Liverpool … |
| Research Analysis Corporation |
2 | active | US | 1972 | | 1974/1974 | The Operations Research Office (ORO) was a civilian military research center founded … |
| RPGCreations |
1 | active | | | | 2007/2007 | Website: http://studioeres.com |
| Surerange Analysis |
5 | | | | | | |
| Thesis |
5 | dead | US | | | 1980/1982 | |
