Scum and Villainy (Star Wars Roleplaying Game), by Gary Astleford, Robert J. Schwalb, Owen K. C. Stephens, Rodney Thompson
Seafarer's Handbook: Sourcebook of Ships, Oceans, and the Beasts Therein (Legends & Lairs, d20 System), by Fantasy Flight Staff
Secret at Greenrock, by Stone, Rob
Secrets of Sarlona (Dungeons & Dragons d20 3.5 Fantasy Roleplaying, Eberron Supplement), by Keith Baker, Scott Fitzgerald Gray, Glenn McDonald, Chris Sims
Sovereign Stone Campaign Sourcebook (D20 System), by Sovereign Press
Spycraft D20: Fixer, Point Man Class Guide, by Aeg
The Coils of Set (Dungeons & Dragons d20 3.5 Fantasy Roleplaying Supplement), by Ryan Henry
The Complete Monstrous Undead Compendium: Detailed Rules for Monstrous Undead PCs and Npcs! (Green Races D20 World), by
The Deep: Underwater Adventure Sourcebook (d20 Fantasy Roleplaying Supplement), by Mystic Eye Games Staff
The Fantastic Adventure, by Golden, Mac
The Forge of War (Dungeons & Dragons d20 3.5 Fantasy Roleplaying, Eberron Setting), by Marmell, Ari,Baur, Wolfgang,Wyatt, James
The Hunt : Rise of Evil World Book (d20 System), by
The Quintessential Drow (Dungeons & Dragons d20 3.0 Fantasy Roleplaying), by Witt, Sam
The Scaum Valley Gazetteer, by David Thomas, Jim Webster
The Tome Of Horrors III (Dungeons & Dragons d20 3.5 Fantasy Roleplaying) (v. 3), by Greene, Scott
The Witchfire Trilogy, Book 3: The Legion of Lost Souls (Privateer Press d20), by Staroscik, Matt, Kilmartin, J. Michael
The Wurst Of Grimtooth's Traps (Dungeons & Dragons d20 3.5 Fantasy Roleplaying), by Rick Loomis
Tome of Horrors *OP (d20 Generic System), by Greene, Scott (with: Clark Peterson; Erica Balsley; Kevin Baase; Casey Christoff
Tome of Horrors II (Sword Sorcery), by
Tournaments, Fairs & Taverns (d20 Fantasy Roleplaying Supplement), by Mystic Eye Games Staff
Traveller's Handbook (Traveller T20 D20), by Dougherty, Martin
Treasure Quests (d20 System), by James M. Ward
Trigun D20, by MacKinnon, Mark C., Lyons, Michelle
Trouble at Durbenford (D20 Generic System), by Robert J. Schwalb
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