| Title | Publisher | Year | Language | Documents |
|---|---|---|---|---|
| Omniverse | Computerware | 1986 | English | Map |
| One Eye Willie | Coco-Cassette, T&D Subscription Software | 1988 | English | |
| One Room | Falsoft Inc |
1982 | English | Solution, Map |
| One Room | Coco-Cassette, T&D Subscription Software | 1987 | English | |
| Operation: Ocean Master | Falsoft Inc |
1988 | English | |
| Orbs of Derra, The | Coco-Cassette, T&D Subscription Software | 1989 | English |