| title | ISBN-13 | year of publica- tion | other author(s) | |
|---|---|---|---|---|
| Cthulhu - Waffen-Handbuch | 978-3-939794-14-1 | 2008 | ||
| GURPS High-Tech | 978-1-55634-812-9 | 2017 | S. A. Fisher · Michael Hurst | |
| Gurps High-Tech | 978-1-55634-770-2 | 2007 | Shawn Fisher | |
| GURPS Special Ops | 978-1-55634-625-5 | 2002 | Greg Rose · William Toporek | |
| GURPS Tactical Shooting | 978-1-55634-804-4 | 2011 | ||
| GURPS WWII Motor Pool | 978-1-55634-642-2 | 2004 | ||