| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 1996 | 978-1-887740-18-0 | M. Alexander Jurkat | Conspiracy X: Game Master's Screen |
| '' | 978-1-887740-44-9 | Richard Ernst | Conspiracy X: Nemesis (The Grey Sourcebook) |
| '' | 978-1-887740-49-4 | Rick Ernst · Shirley Madewell · Chris Pallace | Conspiracy X RPG: They Are Among Us |