| Title | Publisher | Year | Language | Documents |
|---|---|---|---|---|
| Six Stories | Neil K. Guy | 1999 | English | |
| Skyranch | Jack Driscoll | 1999 | English | |
| SNOSAE | R. Dale McDaniel | 1999 | English | |
| Spodgeville Murphy and the Jewelled Eye of Wossname | David Fillmore | 1999 | English | Solution, Map |
| Stone Cell | Steve Kodat | 1999 | English | Solution |
| Strangers in the Night | Rich Pizor | 1999 | English |