| Title | Publisher | Year | Language | Documents |
|---|---|---|---|---|
| Damp Camp, The | James Dean, Jarvist Frost | 1999 | English | Solution |
| Day for Soft Food, A | Tod Levi | 1999 | English | Solution |
| Deanna | Optimus | 1999 | English | |
| Death to my Enemies | Jonathan Blask | 1999 | English | Solution |
| Deephome | Joshua Wise | 1999 | English | Solution |
| Digging for Onions | Christopher Huang | 1999 | English | Solution, Map |
| Dinnertime | Bob Reeves | 1999 | English | Solution, Map |
| Doomsday | Admiral Jota | 1999 | English | Solution, Map |