| title | ISBN-13 | year of publica- tion | other author(s) | |
|---|---|---|---|---|
| Antarctic Express *NOP | 978-1-58978-111-5 | 2009 | ||
| Cliffourd the Big Red God | 978-1-58978-125-2 | 2011 | ||
| Crusade Lore Sorcerers Crusade Scrn *OP | 978-1-56504-490-6 | 1998 | Phil Brucato · Wayne Peacock | |
| Cthulhu 101*OP | 978-0-9816792-1-1 | 2009 | ||
| Cthulhurotica | 978-0-9831373-0-6 | 2010 | Carrie Cuinn · Cody Goodfellow · Steven J. Scearce · Silvia Moreno-Garcia · Gabrielle Harbowy · Matthew Marovich · Kirsten Brown | |
| Das Camarilla-Handbuch | 978-3-931612-76-4 | 2002 | Richard E. Dansky · Geoffrey C. Grabowski | |
| Day After Ragnarok Savage Worlds *OP | 978-0-9816792-2-8 | 2011 | ||
| Gamemastering Secrets Second Edition | 978-1-887154-11-6 | 2002 | Aaron Rosenberg · Sam Chupp · Hilary Doda · Ann Dupuis · Lee Gold · Matt Forbeck · Larry D. Hols | |
| Grim War | 978-1-907204-50-0 | 2010 | Greg Stolze | |
| Guide de la Camarilla | 978-2-84188-064-5 | 1999 | Richard E. Dansky · Geoffrey C. Grabowski | |
| GURPS Alternate Earths 2 | 978-1-55634-399-5 | 1999 | ||
| GURPS Alternate Earths *OP | 978-1-55634-318-6 | 1998 | Craig Neumeier | |
| GURPS Cabal | 978-1-55634-429-9 | 2002 | ||
| GURPS Horror 4th Edition | 978-1-55634-803-7 | 2011 | ||
| GURPS Horror | 978-1-55634-453-4 | 2002 | ||
| GURPS Infinite Worlds | 978-1-55634-734-4 | 2005 | ||
| In Nomine Heaven and Hell | 978-1-55634-339-1 | 1997 | James Cimbais · James Cambias · David Edelstein · Matthew Grau · Steve Kenson · S. John Ross · John Tynes | |
| Kobold Guide to Magic | 978-1-936781-28-7 | 2014 | Wolfgang Baur · Tim Pratt · Jeff Grubb · James Enge · Steve Winter · James Jacobs · David Chart | |
| Mage Secrets of the Ruined Temple | 978-1-58846-422-4 | 2006 | Alexander Freed · Joseph Carriker · Howard Ingham · Jeff Kyer | |
| Rough Magicks | 978-1-934859-31-5 | 2009 | ||
| Sherlock Holmes 101 A 101 Book | 978-0-9816792-4-2 | 2012 | ||
| Star Trek Roleplaying Game: Player's Guide | 978-1-58236-900-6 | 2002 | Mathew Colville · Steven S. Long · Don Mappin · Christian Moore · Owen Seyler | |
| Star Trek Roleplaying Game: Starfleet Operations Manual | 978-1-58236-904-4 | 2003 | ||
| Sulle Tracce di Cthulhu. Tra le spire nebbiose di Londra | 978-88-6568-017-9 | 2010 | ||
| The Complete Idiot's Guide to U.S. History, Graphic Illustrated | 978-1-59257-785-9 | 2009 | Shepherd Hendrix | |
| The Nazi Occult | 978-1-78096-598-7 | 2013 | ||
| Tour de Lovecraft: The Tales | 978-0-9816792-0-4 | 2008 | ||
| Trail of Cthulhu | 978-1-934859-07-0 | 2008 | Robin D Laws | |
| Vampire: Mythologies | 978-1-58846-265-7 | 2006 | Kylee Hartman · Kaldoun Khelil | |
| Where The Deep Ones Are *NOP | 978-1-58978-103-0 | 2009 | ||
| Wo die Tiefen Wesen wohnen | 978-3-940424-78-5 | 2009 | ||
| Zombies 101 A 101 Book*OP | 978-0-9816792-5-9 | 2010 | Atomic Overmind Pres | |
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