J-Z · J Zeigler · Jon F. Zeigler
| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| GURPS Greece | 978-1-55634-096-3 | 1995 | |
| GURPS Space Fourth Edition | 978-1-55634-245-5 | 2006 | |
| GURPS Traveller: Humaniti | 978-1-55634-521-0 | 2003 | Loren Wiseman |
| Gurps Traveller Interstellar Wars | 978-1-55634-746-7 | 2006 | Paul Drye · Loren Wiseman |
| Rim of Fire: The Solomani Rim Sourcebook, GURPS Traveller | 978-1-55634-436-7 | 2000 | |
| TransHuman Space: Fifth Wave | 978-1-55634-459-6 | 2002 | |