| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Battle For Endor | 978-0-87431-190-7 (0-87431-190-X) | 1989 | |
| Cthulhu Now: Modern Adventures and Background for Call of Cthulhu Roleplaying/3307 | 978-0-933635-51-7 (0-933635-51-6) | 1992 | William A. Barton · Keith Herber · Jeff Okamoto · Petersen |