| Title | Publisher | Year | Language | Documents |
|---|---|---|---|---|
| Ultimate Quest, The | 4th Dimension Computer Software | 1984 | English | |
| Underground | Gary Kleppe | 1978 | English | |
| Untitled Adventure | M. Dixon | 1983 | English | |
| Upper School Adventure | B. Jackson | 1984 | English | |
| Urwald | Mcs, Pw | 1985 | German |