| Title | Publisher | Year | Language | Documents |
|---|---|---|---|---|
| Underground Adventure | Duckworth Home Computing |
1983 | English | Solution, Map |
| Underground Escape | Jon Ripley |
1996 | English | Solution |
| Underworld - The Village | Orpheus | 1985 | English | Solution, Map, Hints |
| Unnkulia One-Half: The Salesman Triumphant | Adventions | 1993 | English | Solution |
| Unnkulian Underworld: The Unknown Unventure | Adventions | 1990 | English | Solution |