J.K. · Jeff Kass · Jeff Keuss · Jeff Koch
Pegasus Spiele · Steve Jackson Games
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) | |
|---|---|---|---|---|
| GURPS, Vampire, Die Maskerade | 978-3-930635-09-2 (3-930635-09-7) | 1996 | Mark Rein- Hagen · Steve Jackson | |
| Principia Discordia: Or How I Found Goddess, and What I Did to Her When I Found Her | 978-1-55634-320-9 (1-55634-320-5) | 1994 | Steve Jackson · Derek Pearcy |