| Title | Publisher | Year | Language | Documents |
|---|---|---|---|---|
| Jagd auf den Atomgangster | ODS Electronics Hannover | 1990 | German | |
| Janitor Jim | Creative Dreams Software | 1990 | English | Solution, Map |
| Jason of the Argonauts | Guild Adventure Software, The |
1990 | English | Solution, Map |
| Jesus Gil, Heroe Nacional | 3PSOFT | 1990 | Spanish | |
| Jewels of Honour, The | Fantasy Leagues | 1990 | English | Solution |
| John Clark - The Escape | ? | 1990 | English |