| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| GURPS IOU | 978-1-55634-206-6 (1-55634-206-3) | 2000 | |
| In Nomine Superiors 1: War & Honor | 978-1-55634-409-1 (1-55634-409-0) | 1999 | R. Sean Borgstrom · James Cambias · Genevieve R. Cogman · David Edelstein · Derek Pearcy · S. John Ross |