Wilds (D20 System Supplements), by Alderac Staff
Complete Arcane: A Player's Guide to Arcane Magic for all Classes (Dungeons & Dragons d20 3.5 Fantasy Roleplaying), by Baker, Richard
Book of the Righteous (Dungeons & Dragons d20 3.0 Fantasy Roleplaying), by Aaron J Loeb, William Simoni, Chris Pramas
Dynasties and Demagogues (Penumbra D20), by Aylott, Chris
Empire (d20 Fantasy Roleplaying), by Mearls, Mike
OGL Horror, by Hanrahan, Gareth
Hyperconscious: Explorations in Psionics (Dungeons & Dragons d20 3.5 Fantasy Roleplaying Adventure, 7th Level), by Cordell, Bruce
Mythic Vistas: Mindshadows (d20 Fantasy Roleplaying Campaign Setting), by Brennan, Kevin, Maliszewski, James
Manual of the Planes (Dungeon & Dragons d20 3.0 Fantasy Roleplaying), by David Noonan, Bruce R. Cordell, Jeff Grubb
Magic of Incarnum (Dungeons & Dragons d20 3.5 Fantasy Roleplaying), by Schubert, Stephen, Brunner, Frank, Wyatt, James
Forgotten Realms Campaign Setting (Dungeons & Dragons d20 3.0 Fantasy Roleplaying, Forgotten Realms Setting), by Rob Heinsoo, Sean K Reynolds, Skip Williams, Ed Greenwood
Secrets of the Dread Realm: Plus Gamemaster Screen (Ravenloft d20 Campaign Setting), by Andrew Wyatt, John W. Mangrum, Andrew Cermak
Swords of Power (d20 System), by Ward, James
The Slayers: D20 System Role-Playing Game, by Lyons, Michelle,Ragan, Anthony
Urban Arcana Campaign Setting (d20 Modern), by Slavicsek, Bill, Grubb, Jeff, Cagle, Eric, Noonan, Dave
Factory: A Compendium of Magical Robots, Computers, and Dweoware (d20 3.0 Roleplaying), by Erik Kjerland
Gamma World: Mutants and Machines (Gamma World d20 3.5 Roleplaying), by Wendig, Chuck, O'Duffy, Patrick, Hanrahan, Gareth, Bolack, David
Dragonmech The Last City (Sword & Sorcery D20), by Hammock, Lee
Psionics Handbook (Dungeons & Dragons d20 3.0 Fantasy Roleplaying), by Bruce R. Cordell
Unearthed Arcana (Dungeons & Dragons d20 3.5 Fantasy Roleplaying), by Redman, Rich, Noonan, David, Decker, Jesse, Collins, Andy
Gamma World Player's Handbook: A Campaign Setting for d20 Roleplaying, by Skellams, Geoff, Rautalahti, Mikko, Eller, Ian, Baugh, Bruce
World of Warcraft: Lands of Mystery (D20 Compatible Roleplaying), by
Occult Items of Power (D20), by
Planar Handbook (Dungeon & Dragons d20 3.5 Fantasy Roleplaying), by Cordell, Bruce R., Kestrel, Gwendolyn F.M.
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