| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Castle Greyhawk | 978-0-88038-530-5 | 1988 | |
| Ruins of Adventure | 978-0-88038-588-6 | 1988 | David Cook · Jim Ward |
| Swords of the Iron Legion: Forgotten Realms Module I14 | 978-0-88038-559-6 | 1988 | |
| The City of Greyhawk Boxed Set | 978-0-88038-731-6 | 1989 | Douglas Niles · Kim Mohan |