| Title | Publisher | Year | Language | Documents |
|---|---|---|---|---|
| DSYP | Cellar Door Games | 2009 | English | |
| Duel in the Snow, The | Utkonos | 2009 | English | Solution |
| Duel That Spanned the Ages, The | Oliver Ullmann | 2009 | English | Solution |
| Dulle Griet and the Antenorian Icebox | Sam Kabo Ashwell | 2009 | English | Solution, Map |