| Title | Publisher | Year | Language | Documents |
|---|---|---|---|---|
| Dangerous Pyramid | 64'er, Markt & Technik | 1984 | German | Solution, Map |
| Darkest Hour | GeekOnSkates | 2021 | English | |
| Death Ship | Aardvark |
1980 | English | Solution, Map |
| Deepspace | Gods of the Universe | 1997 | English | Solution |
| Demon Caverns | Street Games | 1985 | English | Solution |
| Dragnet Case, The | Taskmaster Software | 1989 | English | Solution, Map, Hints |
| Dungeon | Andrew Colin |
1982 | English | Solution, Map |
| Dyania | Paul Allen Panks |
2003 | English |