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Index background Series Search: Generic (830 results)
| #30 Series | Rite Publishing | Pathfinder 1 |
| 1 on 1 (One-On-One) Adventure Gamebooks | TSR | 1 on 1 Adventures 1 |
| 1 on 1 Adventures | Expeditious Retreat Press | Pathfinder 1 d20 3.5 |
| 1 on 1 Adventures: Olindor | Expeditious Retreat Press | d20 3.5 |
| 100 Adventure Seeds | Cubicle 7 Entertainment Postmortem Studios | Generic 1 |
| 101 Fantasy Riddles | Stainless Steel Dragon | Generic 1 |
| 101 Items | Rite Publishing | Pathfinder 1 |
| 101 Names | Polgarus Games | Generic 1 |
| 101 Spells | Rite Publishing | Pathfinder 1 |
| 17 Series | The Le Games | d20 3.5 |
| 2001 Adventures | TSR | Star Frontiers 2 |
| 21 Series | Gypsy Knights Games | Traveller / Mongoose 1 |
| 6-Pack Adventures | Postmortem Studios | Dungeons & Dragons 4 Pathfinder 1 |
| A (Adventure) Modules | Sacrosanct Games | Altus Adventum 2 D&D / OSR 1 OSRIC 2 |
| A Challenge of Arms Sequence | Inner City Games | Generic 1 |
| A Magical Medieval Society Guides/Excerpts | Expeditious Retreat Press | Generic d20 3-3.5 |
| A Magical Society | Expeditious Retreat Press | Generic 1 d20 3-3.5 |
| A Magical Society Aggressive Ecology | Expeditious Retreat Press | d20 3.5 |
| A Witch's Choice | Rite Publishing | Arcana Evolved 1 Generic 1 |
| AA (Advanced Adventures) Modules | Expeditious Retreat Press | OSRIC 1-2.2 |
| Actual Classes | Postmortem Studios | d20 3.5 d20 Modern 1 |
| AD&D Core Rules 2.0 CD-Roms | TSR | AD&D 2.5 |
| AD&D Sites Series | TSR | AD&D 2 |
| AD&D1 Core Rulebooks | Games Workshop TSR Twenty-First Century Games Wizards of the Coast | AD&D 1 |
| AD&D1 Hardcovers (Orange Spines) | TSR Twenty-First Century Games | AD&D 1 |
| AD&D1 Monster Manuals | Games Workshop TSR Twenty-First Century Games Wizards of the Coast | AD&D 1 |
| AD&D2 Core Rulebooks | TSR Wizards of the Coast | AD&D 2-2.5 |
| AD&D2 Dungeon Crawls | TSR | AD&D 2 |
| AD&D2 Guild Books | TSR | AD&D 2 |
| AD&D2 Magic Encyclopedia | TSR | AD&D 2 |
| AD&D2 Monster Manuals | TSR Wizards of the Coast | AD&D 2-2.5 |
| AD&D2 Priest's Spell Compendium | TSR | AD&D 2 |
| AD&D2 Tomes Adventures | TSR | AD&D 2 Fiction |
| AD&D2 Wizard's Spell Compendiums | TSR | AD&D 2 |
| Add-A-Room | Creation's Edge Games | d20 3 |
| Advanced Adventures Compendiums | Expeditious Retreat Press | OSRIC 2.2 |
| Advanced Builder Sets | Dwarven Forge | Generic 1 |
| Advanced Feats | Open Design | Pathfinder 1 |
| Advanced Fleet Designs | Fat Dragon Games | Generic 1 |
| Advanced Options | OtherWorld Creations Super Genius Games | Pathfinder 1 |
| Advanced Rulebooks | Green Ronin Publishing | Pathfinder 1 d20 3.5 |
| Adventure Havens | Bards and Sages Publishing | d20 3.5 |
| Adventure Keep City Series | AEG | d20 3 |
| Adventure Keep Dragons Series | AEG | d20 3 |
| Adventure Keep Evil Series | AEG | d20 3 |
| Adventure Keep Modules (AEG) | AEG | d20 3 |
| Adventure Keep Oriental Series | AEG | d20 3 |
| Adventure Keep Tirna'gael Series | AEG | d20 3 |
| Adventure Keep Undead Series | AEG | d20 3 |
| Adventure Series | Corvus Lunaris | Pathfinder 1 |
| Adventurer Essentials | Skortched Urf' Studios | Pathfinder 1 d20 3.5 |
| Adventurer's Vaults | Wizards of the Coast | Dungeons & Dragons 4 |
| Adventuring Classes | Tripod Machine | Pathfinder 1 |
| Agent X | Crafty Games | Spycraft 2 |
| Ages Sourcebooks | Green Ronin Publishing | Mutants & Masterminds 2 |
| Alien Profiles | Eridanus Books | d20 Modern 1 |
| All the Treasures of the World | Faster Monkey Games | Labyrinth Lord 2 |
| All the Worlds' Monsters Volumes | Chaosium | D&D / Original 1 |
| All-in-One MSRD | Wizards of the Coast | d20 Modern 1 |
| All-in-One SRD | Wizards of the Coast | Dungeons & Dragons 3-3.5 d20 3-3.5 |
| All-System Catalyst Series | Flying Buffalo | Generic 1 |
| Alternate Setting Books | Mongoose Publishing | Legend / Mongoose 1 RuneQuest / Mongoose 1 |
| Alternity Fast-Play Adventures | TSR | Alternity 1 |
| Appendix N Adventure Toolkit | Brave Halfling Publishing | Castles & Crusades 1 D&D / Original 1 Dungeon Crawl Classics 1 Labyrinth Lord 2 |
| Arcane Mysteries | Mystic Eye Games | d20 3 |
| Arcania of Magic | Mongoose Publishing | Legend / Mongoose 1 |
| Archetype Archives | Green Ronin Publishing | Mutants & Masterminds 2 |
| Art of Wor: City Tiles | Three Sages Games | Generic 1 |
| Art of Wor: Underworld | Three Sages Games | Generic 1 |
| Artifacts of Lore | EN Publishing | Dungeons & Dragons 4 |
| Asian Bestiaries | Hero Games | HERO 5 |
| Atomik Fuzion | Self-published | Fuzion |
| AW (Alphonso Warden) Modules | Brave Halfling Publishing | OSRIC 2 |
| B (Basic) Modules | TSR | D&D / Basic 1-2 D&D / Holmes 1 |
| B (Sequels to TSR\'s B-series) Modules | Pacesetter Games & Simulations | OSRIC 2.2 |
| B/X Essentials | Necrotic Gnome | Old-School Essentials 1-2 |
| Bad Guys | Plain Brown Wrapper Games | Mutants & Masterminds 1-2 |
| Basement Adventures | Olde House Rules | Pits & Perils 1 |
| Basic Paths | 0one Games | Pathfinder 1 |
| Bastion Fantasy | Eldritch Enterprises | Generic 1 |
| Battlemaps | Emerald Press | Dungeons & Dragons 4 Generic 1 |
| Behind the Monsters | Tricky Owlbear Publishing | d20 3.5 |
| Behind the Spells | Ronin Arts Tricky Owlbear Publishing | d20 3.5 |
| BESM Fantasy | Cumberland Games & Diversions Guardians of Order | Anime d20 1 Big Eyes, Small Mouth 2.5 Generic |
| Bestiaries: Creatures of the West and East | Self-published Worlds of Adventure | d20 3.5 |
| Bestiary Previews | Paizo Publishing | Pathfinder 1 |
| Beyond the Wall: Free Addons | Flatland Games | Beyond the Wall and Other Adventures 1 |
| BH (Basic) Modules (fan-made) | Self-published | D&D / Holmes 1 |
| Bits of Darkness | Tabletop Adventures | Generic 1 d20 3.5 |
| Bits of Magicka | Tabletop Adventures | d20 3.5 |
| Bits of the Wilderness | Tabletop Adventures | d20 3.5 |
| Bits of... | Tabletop Adventures | Generic 1 |
| Bleeding Edge Adventures | Green Ronin Publishing | True20 2 d20 3.5 |
| Blood and Brains | RPGObjects | d20 Modern 1 |
| Blood and Circuits | RPGObjects | d20 Modern 1 |
| Blood and Fists | RPGObjects | True20 2 d20 Modern 1 |
| Blood and Space | RPGObjects | d20 Modern 1 |
| Blood Tales | Postmortem Studios | Blood! 2 |
| Bloody Hooks | Big Finger Games | Generic 1 |
| Blueprints (0one's) | 0one Games | Generic 1 |
| Blueprints Backdrops | 0one Games | d20 3.5 |
| Books of Flesh | Eden Studios | Fiction |
| Books of Lairs | TSR | AD&D 1-2 |
| Books of Monsters | Wizards of the Coast | Dungeons & Dragons 3.5 |
| Books of the Faithful | Jon Brazer Enterprises | Pathfinder 1 |
| Books of the River Nations | Jon Brazer Enterprises | Pathfinder 1 |
| BRP Adventure Contest Compilations | Chaosium | BRP 2 |
| Buck-A-Batch (3.0) | Creation's Edge Games | d20 3 |
| Buck-A-Batch (4E) | Creation's Edge Games | Dungeons & Dragons 4 |
| Building Complexes | Seeker Gaming Systems | Generic 1 |
| C Adventures | SmiteWorks Troll Lord Games | Castles & Crusades 1 Dungeons & Dragons 5 |
| Call of Cthulhu 5.5 Edition Core Rulebooks | Chaosium | Call of Cthulhu 5.5 |
| Call to Arms | Crafty Games | Fantasy Craft 1 |
| Campaign Coins: Copper Coins | King of the Castle Games | Generic 1 |
| Campaign Coins: Gold Coins | King of the Castle Games | Generic 1 |
| Campaign Coins: Platinum Coins | King of the Castle Games | Generic 1 |
| Campaign Coins: Silver Coins | King of the Castle Games | Generic 1 |
| Campaign Overlays | Mongoose Publishing | Pathfinder 1 |
| Campaign Tools | Inspired Device | RuneQuest / Mongoose 1 d20 3.5 |
| Cardboard Heroes: Fantasy Sets | Steve Jackson Games | Generic 1 |
| Cardstock Characters | Skirmisher Publishing | Generic 1 |
| Cardstock Miniatures | OtherWorld Creations Super Genius Games | Generic 1 |
| Career Books | Spica Publishing | Traveller / Mongoose 1 |
| Career Tracks | Gypsy Knights Games | Traveller / Mongoose 1 |
| Cartophile | SkeletonKey Games | Generic 1 |
| Castle of the Mad Archmage | BRW Games Olde School Role Playing Games | Adventures Dark and Deep 1 D&D / OSR 1 Generic 1 Pathfinder 1 |
| Catacombs Solo Quest | TSR | Solo Quest 1 |
| Catalyst Map Books | Flying Buffalo | Generic 1 |
| Cavernous Lake Sets | Dwarven Forge | Generic 1 |
| Cavernous Sets | Dwarven Forge | Generic 1 |
| Central Casting | Task Force Games | Generic 1 |
| CG (Castellan's Guide) Supplements | SmiteWorks Troll Lord Games | Castles & Crusades 1 |
| Character and Template Books (GURPS) | Steve Jackson Games | GURPS 3-3.5 |
| Cities of Fantasy | RPGObjects | d20 3.5 |
| Cities of Fantasy | Mongoose Publishing | Legend / Mongoose 1 d20 3-3.5 |
| Cities of Legend | Mongoose Publishing | Legend / Mongoose 1 d20 3-3.5 |
| City of Shard Modules | Pacesetter Games & Simulations | OSRIC 2.2 |
| City Streets | Generic Universe Publishing | Generic 1 |
| Citybooks | Flying Buffalo | Generic |
| CLA (Classic Labyrinth Adventures) Modules | Brave Halfling Publishing | Castles & Crusades 1 D&D / Original 1 Dungeon Crawl Classics 1 Labyrinth Lord 2 |
| Class Guides | Kenzer & Company | HackMaster 4 |
| Class Options | Gun Metal Games | Pathfinder 1 |
| Class Options | Reality Deviant Publications | Pathfinder 1 |
| Classes of Kor'Onus | Stardust Publications | Pathfinder 1 d20 3.5 |
| Classic Adventure Tiles | SkeletonKey Games | Generic 1 |
| Classic Adventure Tiles: Dungeons | SkeletonKey Games | Generic 1 |
| Classic Play | Mongoose Publishing | d20 3-3.5 |
| Clever Classes | Alluria Publishing | Dungeons & Dragons 4 |
| Cliffhangers Adventures | Wizards of the Coast | Dungeons & Dragons 3 |
| CoC Keeper's Companions | Chaosium | Call of Cthulhu 5.5 |
| CoC Strange Tales of Dread & Wonder | Chaosium | Call of Cthulhu 6 |
| CoC Tales of Terror | Pagan Publishing Self-published | Call of Cthulhu 4-5.5 |
| Codex Draconis | OtherWorld Creations Super Genius Games | Pathfinder 1 |
| Compleat Class Books | Bard Games Wizards of the Coast | AD&D 1 Generic |
| Complete Character Creation | Dreamscarred Press | d20 3.5 |
| Complete Guides to Monsters | Goodman Games | d20 3-3.5 |
| Cooper's Compendium of Corrected Creatures | Skirmisher Publishing | d20 3.5 |
| Cooper\'s Corrected Summon Monsters | Skirmisher Publishing | d20 3.5 |
| Copper Dragon | Fat Dragon Games | Generic 1 |
| Copper Dragon: Basic Dungeons | Fat Dragon Games | Generic 1 |
| Copper Dragon: Caverns | Fat Dragon Games | Generic 1 |
| Counter Collections | Fiery Dragon Sword & Sorcery | Arcana Evolved 1 Arcana Unearthed 1 d20 3-3.5 d20 Modern 1 |
| Counter Collections: 4th Edition | Fiery Dragon | Dungeons & Dragons 4 |
| Counter Collections: Monster Geographica | Fiery Dragon | d20 3.5 |
| Counter Packs | Fiery Dragon | d20 3 d20 Modern 1 |
| Creature Collections | Sword & Sorcery | d20 3-3.5 |
| Creature Corner | Bards and Sages Publishing | Karma 1 d20 3.5 |
| Creatures of Distant Worlds | Jon Brazer Enterprises | Traveller 1 |
| Creatures of the Night | Steve Jackson Games | GURPS 4 |
| Critter Cache | Blackdirge Publishing Goodman Games | Dungeons & Dragons 4 |
| Critter Encounters | Blackdirge Publishing Goodman Games | Dungeons & Dragons 4 |
| Critters: Bugs Series | Blackdirge Publishing Goodman Games SkeletonKey Games | Dungeons & Dragons 4 Generic 1 |
| Cthulhu Fiction | Chaosium Elder Signs Press | Fiction Generic |
| D Adventures | Troll Lord Games | Castles & Crusades 1 |
| D&D 3rd Edition Core Rulebooks | Wizards of the Coast | Dungeons & Dragons 3-3.5 |
| D&D 4th Edition Core Rulebooks | Wizards of the Coast | Dungeons & Dragons 4 |
| D&D 5th Edition Core Rulebooks | Wizards of the Coast | Dungeons & Dragons 5 |
| D&D Encounters | Wizards of the Coast | Dungeons & Dragons 4-5 |
| D&D Fortune Cards | Wizards of the Coast | Dungeons & Dragons 4 |
| D&D Iconic Character Novels | Wizards of the Coast | Fiction |
| D&D Miniatures 2.0 | Wizards of the Coast | Dungeons & Dragons Miniatures Game 2 |
| D&D3 Character Splatbooks | Wizards of the Coast | Dungeons & Dragons 3 |
| D&D3 Monster Manuals | Wizards of the Coast | Dungeons & Dragons 3-3.5 |
| D&D3.5 "DD" (D&D Core) Adventure Series | Wizards of the Coast | Dungeons & Dragons 3.5 |
| D&D3.5 'Scapes | Wizards of the Coast | Dungeons & Dragons 3.5 |
| D&D3.5 Complete Splatbooks | Wizards of the Coast | Dungeons & Dragons 3.5 |
| D&D3.5 Dungeon Master's Guides | Wizards of the Coast | Dungeons & Dragons 3-3.5 |
| D&D3.5 Environments | Wizards of the Coast | Dungeons & Dragons 3.5 |
| D&D3.5 Player's Handbooks | Wizards of the Coast | Dungeons & Dragons 3-3.5 |
| d20 Malhavoc Books of Eldritch Might | Malhavoc Press Sword & Sorcery | d20 3-3.5 |
| d20 Malhavoc Books of Experimental Might | Malhavoc Press | d20 3.5 |
| d20 Malhavoc Books of Hallowed Might | Malhavoc Press Sword & Sorcery | d20 3-3.5 |
| d20 Malhavoc Books of Might | Malhavoc Press Sword & Sorcery | d20 3.5 |
| d20 Necromancer "G" (Guest Author) Adventures | Necromancer Games | d20 3-3.5 |
| d20 System Master Kit | Adamant Entertainment | Pathfinder 1 d20 3.5 d20 Modern 1 |
| d20 Tangent Campaign Detailer | Tangent Games | d20 3.5 |
| d66 Charts | Jon Brazer Enterprises | Generic 1 |
| Dangerous Creatures | Bards and Sages Publishing | d20 3.5 |
| Daring Tales of the Space Lanes | Triple Ace Games | Savage Worlds 2 |
| Daring Tales of the Space Lanes Adventures | Triple Ace Games | Savage Worlds 2 |
| Daring Tales of the Sprawl | Triple Ace Games | Savage Worlds 2 |
| Dark Awakenings | Auran Games | d20 3 |
| Dark Duology | Eldritch Enterprises | Generic 1 |
| Darker Paths | BRW Games | Adventures Dark and Deep 1 |
| DarkWar Saga | Consortium Entertainment Nightshift Games | d20 3 |
| Delving Deeper | Brave Halfling Publishing | Labyrinth Lord 1-2 OSRIC 2 |
| Delving Deeper Reference Rules | Immersive Ink | Delving Deeper 1-2 |
| Demons (Role Aids) | Mayfair Games | AD&D 2 Fiction |
| Den of Evil Sets | Dwarven Forge | Generic 1 |
| Department 7 Advanced Class Updates | Skortched Urf' Studios | d20 3.5 d20 Modern 1 |
| Department 7 Technology Update | Skortched Urf' Studios | d20 Modern 1 |
| Designers & Dragons Second Edition | Evil Hat Productions | Generic 1 |
| Destinations | Tabletop Adventures | Generic 1 d20 Modern 1 |
| Diabolical Traps | Silver Gryphon Games | Generic 1 Ingenium 1 Savage Worlds 2 Ęther |
| Divine Favor | Open Design | Pathfinder 1 |
| Divine Power Cards | Wizards of the Coast | Dungeons & Dragons 4 |
| DLD (Classic Deep Level Dungeon Adventures) | Prime Requisite Games | Labyrinth Lord 2 |
| DMGR Dungeon Master Guide Rules Supplements | TSR | AD&D 2 |
| Domains of Adventure | Highmoon Games | Generic 1 RuneQuest / Mongoose 1 d20 3.5 |
| Double Agent Top Secret/S.I. Adventures | TSR | Fiction |
| Dr Null Adventures | Lame Mage Productions | Mutants & Masterminds 2 |
| Draconomicons | Wizards of the Coast | Dungeons & Dragons 4 |
| Dragon Tiles | Fat Dragon Games | Generic 1 |
| Dragon Tiles: Dungeon Sets | Fat Dragon Games | Generic 1 |
| Dragon Tree Plots | Dragon Tree Press | AD&D 1 Generic |
| Dragonsfoot Tournament ("DFT") Modules | Dragonsfoot UK | AD&D 1 |
| Dread Codices | Adamant Entertainment | d20 3.5 |
| Dungeon Crawl Classics / 3e | Goodman Games | AD&D 1 Castles & Crusades 1 Generic 1 d20 3-3.5 |
| Dungeon Crawl Classics / 4e | Goodman Games | Dungeons & Dragons 4 |
| Dungeon Crawl Classics / DCC | Goodman Games | Dungeon Crawl Classics 1 |
| Dungeon Crawl Classics Holiday Modules | Goodman Games | Dungeon Crawl Classics 1 |
| Dungeon Decks | Gamers Rule | Dungeons & Dragons 4 |
| Dungeon Floors | Genesis Gaming Products Heritage USA | Generic 1 |
| Dungeon Geomorphs | TSR | Generic |
| Dungeon Master Decks | TSR | AD&D 2 |
| Dungeon of Terror | 0one Games | Generic 1 |
| Dungeon Tile Master Sets | Wizards of the Coast | Generic 1 |
| Dungeon Tiles | Greywood Publishing | Generic 1 |
| Dungeon Tiles Set 1 ("DT") | Wizards of the Coast | Generic 1 |
| Dungeon Tiles Set 2 ("DU") | Wizards of the Coast | Generic 1 |
| Dungeon Tiles Set 3 (DN) | Wizards of the Coast | Dungeons & Dragons 4 Generic 1 |
| Dungeons & Dragons Basic to Immortal Sets | TSR | D&D / Basic 2 |
| Dungeons & Dragons Essentials | Wizards of the Coast | Dungeons & Dragons 4 |
| Dungeons & Dragons Supplements | TSR | D&D / Original 1 |
| Dungeons on Demand | Self-published | Dungeons & Dragons 5 |
| Dweomercraft | Dark Quest Games EN Publishing | d20 3-3.5 |
| e-Adventure Tiles | RPGObjects SkeletonKey Games | Fiction Generic 1 |
| e-Adventure Tiles Weekly | SkeletonKey Games | Generic 1 |
| e-Adventure Tiles: Adventure Town | SkeletonKey Games | Generic 1 |
| e-Adventure Tiles: Annuals | SkeletonKey Games | Generic 1 |
| e-Adventure Tiles: Cave Chambers Volumes | SkeletonKey Games | Generic 1 |
| e-Adventure Tiles: Desert | SkeletonKey Games | Generic 1 |
| e-Adventure Tiles: Dungeon Details Volumes | SkeletonKey Games | Generic 1 |
| e-Adventure Tiles: Dungeons Volumes | SkeletonKey Games | Generic 1 |
| e-Adventure Tiles: Flooded Caves Volumes | SkeletonKey Games | Generic 1 |
| e-Adventure Tiles: Hazards | SkeletonKey Games | Generic 1 |
| e-Adventure Tiles: High Seas Ships | SkeletonKey Games | Generic 1 |
| e-Adventure Tiles: Ice | SkeletonKey Games | Generic 1 |
| e-Adventure Tiles: Ice Caves | SkeletonKey Games | Generic 1 |
| e-Adventure Tiles: Round Tower | SkeletonKey Games | Generic 1 |
| e-Adventure Tiles: Sacred Temples | SkeletonKey Games | Generic 1 |
| e-Adventure Tiles: Swamp | SkeletonKey Games | Generic 1 |
| e-Adventure Tiles: Volcanic Cave Volumes | SkeletonKey Games | Generic 1 |
| e-Adventure Tiles: Wilderness | SkeletonKey Games | Generic 1 |
| E-Z | Fat Dragon Games | Generic 1 |
| E-Z Dungeons | Fat Dragon Games | Generic 1 |
| E-Z Terrain | Fat Dragon Games | Generic 1 |
| E-Z Tiles | Fat Dragon Games | Generic 1 |
| E-Z Tiles | Fat Dragon Games | Generic 1 |
| E-Z Tiles: Dungeons | Fat Dragon Games | Generic 1 |
| E.N. Critters Volumes | EN Publishing | d20 3.5 |
| E.N. Publishing Visual Aids | EN Publishing The Other Game Company | d20 3.5 |
| Eclipse | Distant Horizons Games | d20 Modern 1 |
| Eden Studios Presents Volumes | Eden Studios | Unisystem 2 |
| Edventure Maps | SkeletonKey Games | Generic 1 |
| eEncounter (formerly Critter Encounter) Tiles | SkeletonKey Games | Generic 1 |
| eFuture Tiles | Fiery Dragon SkeletonKey Games | Generic 1 |
| Elements of Magic | EN Publishing Natural 20 Press | d20 3-3.5 |
| En Route | Atlas Games | d20 3-3.5 |
| Enchanted Locations | Fast Forward Entertainment | d20 3 |
| Enchiridion Series | S.T. Cooley Publishing | d20 3 |
| Encounters | Troll Lord Games | Castles & Crusades 1 |
| Encounters Series | Corvus Lunaris | d20 3.5 |
| Encyclopaedias Arcane | Mongoose Publishing | d20 3-3.5 |
| Encyclopedia Psionica | Mongoose Publishing | d20 3 |
| Encyclopedias Divine | Mongoose Publishing | d20 3 |
| Encyclopedias Magica | TSR | AD&D 2 |
| Encyclopedias of Demons & Devils | Fast Forward Entertainment | d20 3 |
| Encyclopedias of Weaponry | Fast Forward Entertainment | d20 3-3.5 |
| Endangered Races | Identical Games | d20 3.5 |
| Endless Quest (Series 1) | TSR | Fiction |
| Endless Quest Books: Crimson Crystal Adventures | TSR | Fiction |
| EONS (Emerald\'s One Night Sessions) | Emerald Press | Dungeons & Dragons 4 |
| eSuper Tiles | SkeletonKey Games | Generic 1 |
| Evil Genius Adventures | Lame Mage Productions | Mutants & Masterminds 2 PDQ / Truth & Justice 1 |
| Evocative City Sites | Rite Publishing | Generic 1 Pathfinder 1 |
| Expert Player's Guides | Mongoose Publishing | d20 3.5 |
| F (Fullerton) Adventures | Chaotic Henchmen Productions | AD&D 1 |
| Faces of the Tarnished Souk | Rite Publishing | Pathfinder 1 |
| Fantastic Locations | Wizards of the Coast | Dungeons & Dragons 3.5 |
| Fantastic Maps | Rite Publishing | Generic 1 Pathfinder 1 |
| Fantastic Races | OtherWorld Creations Super Genius Games | Dungeons & Dragons 4 |
| Fantastic Treasures (Role Aids) | Mayfair Games | AD&D 1 |
| Fantasy 4th | Inspired Device | Dungeons & Dragons 4 |
| Fantasy Forest | TSR | Fiction |
| Fantasy Gridiron | SkeletonKey Games | Generic 1 |
| Fantasy Paths Geomorphs | Board-Craft Simulations | BRP 1 |
| Fantasy Quest Series | S.T. Cooley Publishing | d20 3.5 |
| Fantasy Seeds | Expeditious Retreat Press | Generic 1 |
| Fate Worlds | Evil Hat Productions | Fate Core 1 |
| Fate Worlds of Adventure | Evil Hat Productions | Fate Accelerated 1 Fate Core 1 |
| Feast of Crows | Postmortem Studios | d20 3.5 |
| Fell Beasts | Adamant Entertainment | Pathfinder 1 |
| Fell Beasts Volumes | Adamant Entertainment | Pathfinder 1 |
| Fez Modules | Mayfair Games | AD&D 1 |
| FGG (Frog God Games) Modules | Frog God Games | Pathfinder 1 Swords & Wizardry 1 |
| Fifth Edition Fantasy | Goodman Games | Dungeons & Dragons 5 |
| First Edition Fantasy Modules | Ronin Arts | OSRIC 1 |
| First Edition Fantasy Supplements | Ronin Arts | OSRIC 1 |
| First Quest | TSR | Fiction |
| Floor Plans (SJG) | Steve Jackson Games | Generic Unisystem |
| Flying Solo | Victory RPG | Mutants & Masterminds 2 |
| Flynn's Guides | Samardan Press | Traveller / Mongoose 1 |
| For Dummies | John Wiley & Sons Wiley Publishing | Dungeons & Dragons 3.5-4 GURPS 4 Vampire: The Requiem 1 |
| Forgotten City modules | Self-published | D&D / Holmes 1 |
| Forgotten Heroes | Goodman Games | Dungeons & Dragons 4 |
| Foul Locales | Mystic Eye Games | d20 3 |
| Fourth Edition Monster Manuals | Wizards of the Coast | Dungeons & Dragons 4 |
| Freakshow | Postmortem Studios Postmortem Studios2 | Blood! 2 RuneQuest / Mongoose 1 d20 Modern 1 |
| Free RPG Day 2007 | Various Publishers | Various Systems |
| Free RPG Day 2008 | Various Publishers | Various Systems |
| Free RPG Day 2009 | Various Publishers | Various Systems |
| Free RPG Day 2009: PDF Adjunct | Alea Publishing Group Rite Publishing | Arcana Evolved 1 Dungeons & Dragons 4 Generic 1 |
| Free RPG Day 2010 | Various Publishers | Various Systems |
| Free RPG Day 2011 | Various Publishers | Various Systems |
| Free RPG Day 2012 | Various Publishers | Various Systems |
| Free RPG Day 2013 | Various Publishers | Various Systems |
| Free RPG Day 2014 | Various Publishers | Various Systems |
| Free RPG Day 2015 | Various Publishers | Various Systems |
| Free RPG Day 2016 | Various Publishers | Various Systems |
| Frontier Towns | Dog House Rules | Sidewinder: Recoiled 1 |
| Fudge Treats | Avalon Game Company ComStar Media | Fudge 1 |
| Future Firearms Packs | Applied Vectors | d20 Modern 1 |
| G-Series (Giants) Companion | Pin-Hammer PinHammer Self-published | AD&D 1 |
| Game Chef Finalists | Technomancer Press | Generic / One-Off System 1 |
| GameMastery Campaign Coins | King of the Castle Games Paizo Publishing | Generic 1 |
| GameMastery Flip-Mats | Paizo Publishing | Generic 1 |
| GameMastery Map Packs | Paizo Publishing | Generic 1 |
| Gamescapes Flip-Mats | Cubicle 7 Entertainment Savage Mojo | Generic 1 |
| Gary Gygax Presents Fantasy Master | New Infinities Productions | Generic 1 |
| Gems & Pearls | Goodman Games | Dungeon Crawl Classics 1 Generic 1 |
| Genius Guides | OtherWorld Creations Super Genius Games | Pathfinder 1 |
| Genius Guides to Archetypes | OtherWorld Creations Super Genius Games | Pathfinder 1 |
| Genius Guides to Core Classes | OtherWorld Creations Super Genius Games | Pathfinder 1 |
| Genius Guides to Domains | OtherWorld Creations Super Genius Games | Pathfinder 1 |
| Genius Guides to Feats | OtherWorld Creations Super Genius Games | Pathfinder 1 |
| Genius Guides to Loot 4 Less | OtherWorld Creations | Pathfinder 1 |
| Genius Guides to Magic | OtherWorld Creations Super Genius Games | Pathfinder 1 |
| Genius Guides to Prestige Classes | OtherWorld Creations | Pathfinder 1 |
| Genre Books | I.C.E. | Rolemaster 2.5 Space Master 2 |
| GG (Goodman Games) Adventures | Goodman Games | Castles & Crusades 1 |
| GM (Martian Game Module) Accesories | Martian Game Modules | Generic 1 |
| GM Mastery Volumes | RPGObjects | d20 3-3.5 |
| GR (General Reference) Accessories | TSR | AD&D 2 |
| Green Ronin Master Class | Green Ronin Publishing | d20 3-3.5 |
| Green Ronin Pocket Collections | Green Ronin Publishing | d20 3 |
| Grimtooth's Traps Books | Flying Buffalo Necromancer Games Task Force Games | Generic d20 3.5 |
| Grittier Races | Eridanus Books | Pathfinder 1 |
| GT (Gate) Modules | Knightvision Games | Labyrinth Lord 2 |
| GUMSHOE Zoom | Pelgrane Press | GUMSHOE 1 |
| GURPS Action | Steve Jackson Games | GURPS 4 |
| GURPS After the End | Steve Jackson Games | GURPS 4 |
| GURPS Aliens | Steve Jackson Games | GURPS 3-4 |
| GURPS Alphabet Arcane | Steve Jackson Games | GURPS 4 |
| GURPS Best of Pyramid Volumes | Steve Jackson Games | GURPS 3 |
| GURPS Compendiums | Steve Jackson Games | GURPS 3 |
| GURPS Cyberpunk | Steve Jackson Games | GURPS 3 |
| GURPS Dungeon Fantasies | Steve Jackson Games | GURPS 4 |
| GURPS Dungeon Fantasy Adventures | Steve Jackson Games | GURPS 4 |
| GURPS Dungeon Fantasy Denizens | Steve Jackson Games | GURPS 4 |
| GURPS Dungeon Fantasy Monsters | Steve Jackson Games | GURPS 4 |
| GURPS Dungeon Fantasy Treasures | Steve Jackson Games | GURPS 4 |
| GURPS High-Tech (4th Edition) | Steve Jackson Games | GURPS 4 |
| GURPS Horror | Steve Jackson Games | GURPS 4 |
| GURPS Limited Edition Hardcovers | Steve Jackson Games | GURPS 3 |
| GURPS Loadouts | Steve Jackson Games | GURPS 4 |
| GURPS Locations | Steve Jackson Games | GURPS 4 |
| GURPS Low-Tech | Steve Jackson Games | GURPS 4 |
| GURPS Low-Tech Companions | Steve Jackson Games | GURPS 4 |
| GURPS Magic (for 4E) | Steve Jackson Games | GURPS 4 |
| GURPS Magic Items | Steve Jackson Games | GURPS 3 |
| GURPS Magical Styles | Steve Jackson Games | GURPS 4 |
| GURPS Mars | Steve Jackson Games | GURPS 3 |
| GURPS Martial Arts (3rd Edition) | Steve Jackson Games | GURPS 3-4 |
| GURPS Martial Arts (4th Edition) | Steve Jackson Games | GURPS 3-4 |
| GURPS Monster Hunters | Steve Jackson Games | GURPS 4 |
| GURPS Power-Ups | Steve Jackson Games | GURPS 4 |
| GURPS Powers | Steve Jackson Games | GURPS 4 |
| GURPS Psionics (4th Edition) | Steve Jackson Games | GURPS 4 |
| GURPS Restock Bundles | Steve Jackson Games | GURPS 3 |
| GURPS Social Engineering | Steve Jackson Games | GURPS 4 |
| GURPS Space | Steve Jackson Games | GURPS 2-4 |
| GURPS Space Atlases | Steve Jackson Games | GURPS 2-3 |
| GURPS Spaceships | Steve Jackson Games | GURPS 4 |
| GURPS Supers | Steve Jackson Games | GURPS 3 |
| GURPS Supporting Cast | Steve Jackson Games | GURPS 3-4 |
| GURPS Thaumatology | Steve Jackson Steve Jackson Games | GURPS 4 |
| GURPS Time Travel | Steve Jackson Games | GURPS 3 |
| GURPS Ultra-Techs | Steve Jackson Games | GURPS 3 |
| GURPS Vehicles (3E) | Steve Jackson Games | GURPS 3 |
| GURPS Who's Who | Steve Jackson Games | GURPS 3 |
| GURPS Zombies | Steve Jackson Games | GURPS 4 |
| GW Dungeon Floor Plans (Set 1) | Games Workshop | Generic 1 |
| GW Dungeon Floor Plans (Set 2) | Games Workshop | Generic 1 Warhammer Fantasy Roleplay 1 |
| Gygaxian Fantasy Worlds | Troll Lord Games | Generic 1 |
| Hacklopedia of Beasts | Kenzer & Company | HackMaster 4 |
| Halloween Horror | Chaosium | Call of Cthulhu 6 |
| Hard Boiled Ideas | One Bad Egg | Dungeons & Dragons 4 |
| Hard Boiled Ideas | Highmoon Games | Dungeons & Dragons 4 |
| HC (Hex Crawl Chronicles) Series | Frog God Games | Pathfinder 1 Swords & Wizardry 1 |
| HeartQuest Books | TSR | Fiction |
| Heavenring Village | 0one Games | Generic 1 |
| Hellfrost Region Guides | Triple Ace Games | Savage Worlds 2 |
| Here Be Monsters | Zombie Sky Press | Pathfinder 1 |
| Hero Packs | Adamant Entertainment | Icons 1 |
| Hero System 6 Advanced Player\'s Guides | Hero Games | HERO 6 |
| Hero System 6th Edition Volumes | Hero Games | HERO 6 |
| Hero's Handbooks | Goodman Games | Dungeons & Dragons 4 |
| Heroes of High Favor | Bad Axe Games | d20 3 |
| Heroes of the Far East | EN Publishing | Dungeons & Dragons 4 |
| Heroic Moments | Highmoon Games | 4C System 1 |
| HHQ (Head to Head Quest) Modules | TSR | AD&D 2 |
| Hideous Creatures | Pelgrane Press | Generic 1 Trail of Cthulhu 1 |
| Hideouts & Hoodlums Core Books | Games by Scott Casper | Hideouts & Hoodlums 1 |
| HM Robinloft Adventures | Kenzer & Company | HackMaster 4 |
| Hordes | Adamant Entertainment | d20 3.5 |
| Horizon | Fantasy Flight Games | d20 3 d20 Modern 1 |
| Horror on the Hill | Self-published TSR | D&D / Basic 2 |
| Horror Seeds | Expeditious Retreat Press | Generic 1 |
| Hot Pursuit | Adamant Entertainment | d20 3.5 d20 Modern 1 |
| Hunter & Prey | Arbor Productions | Mutants & Masterminds 2 |
| I (Intermediate) Modules | Daystar West Media Productions TSR | AD&D 1-2 |
| I (Intermediate) Modules (fan-made) | Self-published | AD&D 1 |
| I series | Pacesetter Games & Simulations | OSRIC 2.2 |
| ICE Generic RPG Sourcebooks | I.C.E. | Generic |
| Immortals Handbook | Eternity Publishing Mongoose Publishing | d20 3.5 |
| Indie Mixtapes | Corvid Sun | Generic 1 |
| Indulgences, Wave One | Sinister Adventures | d20 3.5 |
| InfiniBadger Vignette Scenarios ("VS") Series | InfiniBadger Press | Labyrinth Lord 2 OSRIC 2.2 Swords & Wizardry 1 |
| Instant Adventures Series I | Fantasy Flight Games | d20 3 |
| Instant Adventures Series II | Fantasy Flight Games | d20 3 |
| Instant Adventures Series III | Fantasy Flight Games | d20 3 |
| Into the ... Environment Books | Bastion Press | d20 3-3.5 |
| Into the Future | Tabletop Adventures | Generic 1 |
| Iron Heroes Campaign | Fiery Dragon | Iron Heroes 1 |
| Iron Heroes Core Rulebooks | Fiery Dragon Malhavoc Press Sword & Sorcery | Iron Heroes 1-2 |
| Item Cards | Adamant Entertainment | Pathfinder 1 |
| Items of Power | Fast Forward Entertainment | d20 3 |
| JG Books of Treasure Maps | Judges Guild | D&D / Original 1 Generic 1 |
| JG Campaign Hexagon System Playaids | Judges Guild | D&D / Original 1 Generic 1 |
| JG Castle Books | Judges Guild | Generic |
| JG Portals Adventures | Judges Guild | AD&D 1 |
| JG Village Books | Judges Guild | D&D / Original 1 Generic 1 |
| JN (J. D. Neal) series | Self-published | Basic Fantasy 2 |
| Journals of Franklin Von Mookenstein | Cracked Mirror Publishing | Mutants & Masterminds 2 |
| K (Kenzer) Adventures | Kenzer & Company Necromancer Games | HackMaster 4 d20 3.5 |
| Karmic Adversaries | Bards and Sages Publishing | Karma 1 |
| Karmic Monsters | Bards and Sages Publishing | Karma 1 d20 3.5 |
| Keep on the Borderlands Modules | TSR | AD&D 2 D&D / Basic 1 |
| Ken Writes About Stuff | Pelgrane Press | GUMSHOE 1 Generic 1 Trail of Cthulhu 1 |
| Kill the Monsters Take Their Treasure (KTM3T) | Self-published | Labyrinth Lord 2 |
| Kingdom of Cthulhu | Fat Dragon Games | Generic 1 |
| Kobold Ninja Random Lists | Jon Brazer Enterprises | Pathfinder 1 |
| Krazy Kragnar\'s | OtherWorld Creations Super Genius Games | Pathfinder 1 |
| Kubla Khan Adventures | Troll Lord Games | d20 3.5 |
| Lake Geneva Castle & Campaign Series | Black Blade Publishing Pied Piper Publishing | AD&D 1 Generic 1 |
| Lands of Darkness | Expeditious Retreat Press | Dungeons & Dragons 4 |
| Larger than Life | Kobold Press | Pathfinder 1 |
| Legends | RPGObjects | d20 3.5 |
| Legends & Lairs | Fantasy Flight Games | d20 3-3.5 |
| Legends & Lairs Bestiary ("Lore") Sourcebooks | Fantasy Flight Games | d20 3 |
| Legends & Lairs Character Class ("Path of") Sourcebooks | Fantasy Flight Games | d20 3 |
| Legends & Lairs Compendiums of Magic ("School" Series) | Fantasy Flight Games | d20 3 |
| Legends & Lairs Design and Survival Handbooks | Fantasy Flight Games | d20 3-3.5 |
| Legends & Lairs Sourcebooks of Deadly Machinations | Fantasy Flight Games | d20 3 |
| Legends Collection | Bastion Press | d20 3 |
| Legends of Sorcery | RPGObjects | d20 3.5 |
| Lejentia Campaigns | Flying Buffalo | Generic 1 |
| Liber Sodalitas | Highmoon Games | Pathfinder 1 d20 3.5 |
| Librum Equitis Volumes | Ambient Mystic Eye Games | d20 3 |
| Lich Dungeon | Eldritch Enterprises | Generic 1 |
| Like a Fucking Boss | Kort'thalis Publishing | D&D / O5R 1 Generic 1 |
| Little Shops of Poisons and Potions | Bob Liddil Publishing Group | Generic |
| Locations Series | Corvus Lunaris | d20 3.5 |
| Lost Classes of Fantasy | LPJ Design | Pathfinder 1 |
| Lost Treasures | Pantheon Press | Fate Twist 1 |
| M&M Superlink | Adamant Entertainment Cubicle 7 Entertainment | Icons 1 Mutants & Masterminds 2 |
| Malevolent and Benign Monster Manuals | Expeditious Retreat Press | OSRIC 1-2 Pathfinder 1 |
| Malhavoc Event Books | Malhavoc Press Sword & Sorcery | d20 3-3.5 |
| Map Folios | Wizards of the Coast | Dungeons & Dragons 3-3.5 |
| Map Pack | Raging Swan Press | Generic 1 |
| Martial Cultures | Chaotic Shiny Productions | Dungeons & Dragons 4 |
| Martial Power Cards | Wizards of the Coast | Dungeons & Dragons 4 |
| Mass Transit Posters | Maps of Mastery | Generic 1 |
| Master Adventures | 0one Games | Impresa 1 OSRIC 1-2 Pathfinder 1 d20 3-3.5 |
| Master Tiles | SkeletonKey Games | Generic 1 |
| MasterCraft | Crafty Games Mongoose Publishing | Fantasy Craft 1 |
| Masterwork Maps | Darkfuries Publishing | d20 3-3.5 |
| Maze of Zayene | Creations Unlimited Different Worlds Publications Necromancer Games | AD&D 1 d20 3-3.5 |
| McGuffin Spacecraft Guides | Cracked Mirror Publishing | Mutants & Masterminds 2 |
| Mech Tech \'n\' Bot | Jon Brazer Enterprises | Traveller 1 |
| Medieval Building Sets | Dwarven Forge | Generic 1 |
| Merchants' Quarter | Hart-Felt Productions | d20 3.5 |
| Metahuman Mystics & Supernatural Supers | Misfit Studios | Mutants & Masterminds 2 |
| Metamorphosis -- From Dretch to Demon Lord Books | EN Publishing | Fiction |
| Microlite74 Companions | Self-published | Microlite74 3 |
| MicroQuests | Metagaming | The Fantasy Trip 1-2 |
| Military Seeds | Expeditious Retreat Press | Generic 1 |
| Mindscapes Volumes | Malhavoc Press Malhavoc Press | d20 3-3.5 |
| Mirkmoot\'s Items | Troll in the Corner | Pathfinder 1 |
| Mirrors | White Wolf Publishing | Storytelling System 1 |
| Misfits & Menaces | Misfit Studios | Icons 1 Mutants & Masterminds 2 |
| Miskatonic University Archives | Chaosium | Fiction |
| Modern Dispatch | Sword's Edge Publishing | d20 Modern 1 |
| Monster Cards | TSR | AD&D 1 |
| Monster Chronicles | Open Design | Pathfinder 1 |
| Monster Encyclopedia | Mongoose Publishing | d20 3.5 |
| Monster Geographica | Expeditious Retreat Press | d20 3.5 |
| Monster Vaults | Wizards of the Coast | Dungeons & Dragons 4 |
| Monstercology | Goodman Games | Dungeons & Dragons 4 |
| Monsternomicons / Dungeon Masters Guild | Dungeon Masters Guild | Dungeons & Dragons 5 |
| Monsters of Myth and Legend (Role Aids) | Mayfair Games | AD&D 1-2 |
| Monsters of Taboo | Rite Publishing | d20 3.5 |
| Monsters of the Far East | EN Publishing | Dungeons & Dragons 4 |
| Monstrous Arcana: Beholders | TSR | AD&D 2 |
| Monstrous Arcana: Mind Flayers | TSR | AD&D 2 |
| Monstrous Arcana: Sahuagin | TSR | AD&D 2 |
| Monstrous Compendium Annuals | TSR | AD&D 2 |
| Monstrous Menaces | Adventure Games Publishing | Castles & Crusades 1 |
| Monstrous Tomes | Dragonsfoot UK | AD&D 1 |
| Moonless Night: The Defense of Goblin's Tooth | Dragonsfoot UK | AD&D 1 |
| Mother of All Tables | Necromancer Games | d20 3.5 |
| Mountain of Mystery Campaign | Dimension Six | Generic 1 |
| Munchkin RPG | Steve Jackson Games | d20 3-3.5 |
| Mysteries Setting Monographs | Chaosium | Call of Cthulhu 5.5-7 |
| Myth & Magic Core Rules | New Haven Games | BASE20 1 |
| Mythic Adventures | Paizo Publishing | Pathfinder 1 |
| Mythic Menagerie | OtherWorld Creations Super Genius Games | Pathfinder 1 |
| Mythmere's Adventure Design Deskbooks | Black Blade Publishing Mythmere Games | Generic 1 Swords & Wizardry 1 |
| Mythoard April 2015 | Various Publishers | Various Systems |
| Mythoard February 2015 | Various Publishers | D&D / OSR 1 Generic 1 TSRS 1 |
| Mythoard March 2015 | GM Games Inkwell Ideas Mythoard ThrowiGames | D&D / OSR 1 Generic 1 |
| Mythoard May 2015 | Barrel Rider Games Heroic Maps Judges Guild Mentats of Gaming | Generic 1 Pathfinder 1 Swords & Wizardry / White Box 1 d20 3.5 |
| Mythos | Bards and Sages Publishing | d20 3.5 |
| Myths & Legends | EN Publishing | Dungeons & Dragons 4 |
| Necromancer\'s Grimoires | Necromancers of the Northwest | Pathfinder 1 |
| Nemeses | Bards and Sages Publishing | Karma 1 d20 3.5 d20 Modern 1 |
| Neo Monks | The Le Games | d20 3.5 |
| Neo Rangers | The Le Games | d20 3.5 |
| New Style | Cubicle 7 Entertainment Hogshead Publishing | Baron Munchausen 1 De Profundis 1-2 Generic / One-Off System 1 Puppetland 1 |
| Night of Terror Series | Johnny Rook Games | OSRIC 2-2.2 |
| Night Reign Sneak Peeks | Destiny Games | Dungeons & Dragons 4 |
| Nodwick Chronicles | Dork Storm Press | Fiction |
| Non Player Compendiums: | Adamant Entertainment | d20 3.5 |
| NPC Files | Expeditious Retreat Press | d20 3.5 |
| O (One-On-One) Modules | Metro Detroit Gamers TSR | D&D / Basic 2 D&D / Original 1 |
| OD&D Monster & Treasure Assortments | TSR | D&D / Original 1 |
| OD&D Winter War IV Tournament | Judges Guild | D&D / Original 1 |
| OGL Alternatives | Samardan Press | d20 3.5 |
| OGL Barbarian | Misfit Studios | d20 3.5 |
| OGL Fantasy | Atlantean Studios Eternal Knot Games Green Ronin Publishing Misfit Studios | d20 3.5 |
| OGL Future | Eternal Knot Games Misfit Studios | d20 Modern 1 |
| OGL Genre Books | Mongoose Publishing | Various Systems |
| OGL Modern | Misfit Studios | d20 Modern 1 |
| Old School Fantasy | Reality Blurs | Fantasy Craft 1 Savage Worlds 2 |
| Olde School Arcana | Mob United Media | OSRIC 1 |
| One Night Stand Adventures (OtherWorld Creations) | OtherWorld Creations | Dungeons & Dragons 4 Pathfinder 1 |
| One Night Stands Series (Frog God) | Frog God Games Mythmere Games | Pathfinder 1 Swords & Wizardry 1 |
| One Shot Adventures | Keck Publishing | Simple Sixes 1 |
| One Shot Adventures: Side Trek Scenarios | Keck Publishing | Simple Sixes 1 |
| One-Shot Adventure Series | GM Games | Swords & Wizardry 1 |
| Online Original Adventures | Wizards of the Coast | Dungeons & Dragons 3-3.5 |
| Open Game Table: The Anthologies of Roleplaying Game Blogs | Self-published | Generic 1 |
| Origin of the Species | Crafty Games | Spycraft 2 |
| Original Edition Adventures | Brave Halfling Publishing | Castles & Crusades 1 D&D / Original 1 Dungeon Crawl Classics 1 Labyrinth Lord 2 |
| Original Edition Options | Brave Halfling Publishing | D&D / Original 1 |
| P (Painter) Adventures | Underworld Publishing | AD&D 2 |
| Pacesetter System Action Table Cards | Goblinoid Games | Cryptworld 1 Majus 1 Rotworld 1 Timemaster 1 |
| Pale Knight (Blood Plateau) | MonkeyGod Enterprises | d20 3 |
| Paper Minis | Rite Publishing | Pathfinder 1 |
| Party of One | Open Design | Pathfinder 1 |
| Pathfinder Bestiaries | Paizo Publishing | Pathfinder 1 |
| Pathfinder Player Companion: Miscellanea | Paizo Publishing | Pathfinder 1 |
| Paths of Doom Adventure Books | Margaret Weis Productions | Generic 1 |
| Paths of Power | Distant Horizons Games | d20 3.5 |
| Paths to Prestige | Blackdirge Publishing Goodman Games | Dungeons & Dragons 4 |
| Penumbra | Atlas Games | d20 3-3.5 |
| People, Places, and Things | Second Rat Games | Generic 1 |
| Persons | MIT MIT Press | Generic 1 |
| PHBR (Players Handbook Reference) Supplements | TSR | AD&D 2 |
| Pirates of the High Seas | EN Publishing | Dungeons & Dragons 4 |
| Pits & Perils Rules | Olde House Rules | Pits & Perils 1 |
| Places of Mystery | The Companions | Generic 1 |
| Plain Wrap Supplements | Seraphim Guard | RuneQuest / Mongoose 1 |
| Planarch Codices | Corvid Sun | Dungeon World 2 |
| Planetary Tool Kits | Zozer Games | Traveller / Mongoose 1 |
| Player's Guides to Classes | Sword & Sorcery | d20 3.5 |
| Player's Handbook Power Cards | Wizards of the Coast | Dungeons & Dragons 4 |
| Player's Handbook Races | Wizards of the Coast | Dungeons & Dragons 4 |
| Player's Handbooks | Wizards of the Coast | Dungeons & Dragons 4 |
| Player's Options | TSR | AD&D 2-2.5 |
| Player\'s Options | Wizards of the Coast | Dungeons & Dragons 4 |
| Plot Spots | Hart-Felt Productions | d20 3.5 |
| Pocket Adventures | Flying Buffalo | Tunnels & Trolls 5 |
| Pocket Adventures | Eridanus Books | d20 3.5 |
| Points of Light | Goodman Games | Generic 1 |
| Poisoncraft 4E | One Bad Egg | Dungeons & Dragons 4 |
| Poisonworks | One Bad Egg SkeletonKey Games | Dungeons & Dragons 4 Generic 1 |
| Polymecha | LPJ Design | d20 Modern 1 |
| Portable Hole Series | Ambient EN Publishing | d20 3-3.5 |
| Post-Apocalyptic Seeds | Expeditious Retreat Press | Generic 1 |
| Power Books | Wizards of the Coast | Dungeons & Dragons 4 |
| Power Classes | Mongoose Publishing | d20 3 |
| Power Gamer's 3.5 Strategy Guides | Goodman Games | d20 3.5 |
| Power Profiles | Green Ronin Publishing | Mutants & Masterminds 3 |
| Powerful Flavors | Chaotic Shiny Productions | Dungeons & Dragons 4 |
| Protect the Master | RPGObjects SkeletonKey Games | Generic 1 d20 3.5 |
| Prototypes | LPJ Design | d20 Modern 1 |
| Psychedelic Fantasies Modules | Geoffrey McKinney | D&D / OSR 1 |
| Pulp Dungeons | Corsair Publishing Destination Games | Generic 1 |
| Pulp Dungeons Series 1: Just Above the Pit | Destination Games | Generic 1 |
| Pulp Dungeons Series 2: The Elements of Terror | Destination Games | Generic 1 |
| Pulp Dungeons Series 3: The Guardians of the Knives | Corsair Publishing Destination Games | Generic 1 |
| Pulp Dungeons Series 4: Two Sides of the Coin | Corsair Publishing Destination Games | Generic 1 |
| Pulp Seeds | Expeditious Retreat Press | Generic 1 |
| QUERPS Core Books | Greywood Publishing | QUERP 2 |
| Quest Triad Books | TSR | Fiction |
| Quick Play Adventures | Pacesetter Games & Simulations | OSRIC 2.2 |
| Quick Worlds | Gypsy Knights Games | Traveller / Mongoose 1 |
| Quintessential II: Advanced Tactics Series | Mongoose Publishing | d20 3.5 |
| Quintessential Series | Mongoose Publishing | d20 3-3.5 |
| Quintessential Series | Asterion Press Mongoose Publishing | Dungeons & Dragons 4 |
| Quirin Encounters | GMC | d20 3.5 |
| Quirin Maps | GMC | Generic 1 |
| R (Reference) Series | SmiteWorks Troll Lord Games | Castles & Crusades 1 |
| Races of ... | Wizards of the Coast | Dungeons & Dragons 3.5 |
| Races of Kor'Onus | Stardust Publications | Pathfinder 1 |
| Races of Legend | Paradigm Concepts | d20 3-3.5 |
| Races of Renown | Green Ronin Publishing | d20 3-3.5 |
| Rage Series | Nerd Rage Games | Rage 1 |
| Rage Series Supplements | Nerd Rage Games | Rage 1 |
| RAM (Realms of Arkonus / Magique) Adventures | Magique Productions | OSRIC 1-2 |
| Random Encounters | Raging Swan Press | Pathfinder 1 |
| Rappan Athuk Adventure Maps | SkeletonKey Games | Generic 1 |
| RC Modules | Pacesetter Games & Simulations | D&D / Basic 2 OSRIC 2.2 |
| Realm of the Ancients Sets | Dwarven Forge | Generic 1 |
| REF (Reference) Accessories | TSR | AD&D 1-2 |
| Rehacked Adventures | Kenzer & Company | HackMaster 4 |
| Remarkable Races (Pathway to Adventure) | Alluria Publishing | Dungeons & Dragons 4 Pathfinder 1 |
| Riders of the Apocalypse | EN Publishing | Dungeons & Dragons 4 |
| Ripped from the Headlines | Roleplayers Chronicle | Generic 1 |
| Rise of the Dead | Chaosium | Call of Cthulhu 6 |
| Role Aids | Mayfair Games | AD&D 1-2 |
| Rolemaster 2 Companions | Guild Companion Publications I.C.E. | Rolemaster 2-2.5 Rolemaster Classic 1 |
| Rolemaster 2 Creatures & Treasures | I.C.E. | Rolemaster 2-2.5 Rolemaster Classic 1 |
| Rolemaster 3 Annuals | I.C.E. | Rolemaster 3 |
| Roll XX | The Sentinels of Meregoth | Generic 1 |
| RPGA Adventures | RPGA | AD&D 1 D&D / Basic 2 |
| Rule Zero | Minotaur Games | Pathfinder 1 |
| Rules of Play | MIT | Generic 1 |
| Rune Sources | Sceaptune Games | RuneQuest / Mongoose 1 |
| RuneQuest Numbered Boxes | Avalon Hill | RuneQuest 3 |
| Runic Fantasy | Ronin Arts | RuneQuest / Mongoose 1 |
| S (Special) Adventures | Kenzer & Company | HackMaster 4 |
| S (Stephen Chenault) Adventures | Troll Lord Games | Castles & Crusades 1 d20 3 |
| Saturday Night Delves | Save Versus Death | Dungeons & Dragons 4 |
| Savage Tales | Pinnacle SmiteWorks | Savage Worlds 1-2 |
| Savage Worlds Genre Companions | Pinnacle | Savage Worlds 2 |
| SC (Sunken City) Modules | Purple Sorcerer Games | Dungeon Crawl Classics 1 |
| Schoolgirl RPG Supplements | Yaruki Zero Games | Schoolgirl RPG 1 |
| Sci-Fi Seeds | Expeditious Retreat Press | Generic 1 |
| Scoundrels fo the Old West | EN Publishing | Dungeons & Dragons 4 |
| Season Sourcebooks | Mongoose Publishing | Babylon 5 d20 1 |
| Seven Voyages of Zylarthen Volumes | Campion & Clitherow | Seven Voyages of Zylarthen 1 |
| SG Series | Troll Lord Games | Castles & Crusades 1 |
| Shadowvein Trilogy | Expeditious Retreat Press | OSRIC 1-2.2 |
| Shaheen\'s Scratch Pad | S.T. Cooley Publishing | d20 3.5 |
| Shatterstone's Schematics | Hart-Felt Productions | d20 3.5 |
| Ships of the Galaxy | Blue Max Studios | OpenD6 1 d20 Modern 1 d6 System 2 |
| Simply Classes | Mad Scotsman Games | d20 3.5 |
| Simply... | Mad Scotsman Games | d20 3.5 |
| Skill Encounters | 4th Dimension Games | Pathfinder 1 |
| Slayer's Guides | Mongoose Publishing | d20 3-3.5 |
| Slumbering Tsar: Temple-City of Orcus | Frog God Games | Pathfinder 1 |
| Slumbering Tsar: The Desolation | Frog God Games | Pathfinder 1 |
| So What\'s... | Raging Swan Press | Pathfinder 1 |
| Solo Adventure Series | Auxo | RuneQuest / Mongoose 1 |
| Solo Adventures | Chris Harvey Corgi Books Flying Buffalo Strategy Games Limited | Tunnels & Trolls 2-6 |
| Solo Adventures | 9th Level Games | Kobolds Ate My Baby! 1 |
| SoloQuests | Chaosium | RuneQuest 2 |
| Space Opera Support | Polgarus Games | Generic 1 |
| Spacefarers Guides: Unofficial Traveller Supplements | Phoenix Games | Generic 1 |
| Spellbook Cards | Gale Force Nine | Dungeons & Dragons 5 |
| Spellbound | Crafty Games | Spycraft 2 |
| Spellcraft & Swordplay Volumes | Elf Lair Games | Spellcraft & Swordplay 1.1 |
| Spells of Aldernon | Angstrum Ink | D&D / Original 1 Generic 1 |
| Splinters of Faith | Frog God Games | Pathfinder 1 Swords & Wizardry 1 |
| Spycraft Class Guides | AEG Crafty Games | Spycraft 1-2 |
| Squadron UK Books | Simon Burley Productions | Golden Heroes 2 |
| Squirrel Attack! | Hinterwelt Enterprises | Iridium Lite 1 |
| Stand Alone Adventures | Troll Lord Games | Castles & Crusades 1 |
| Star System | Adamant Entertainment | Generic 1 |
| Star System Reference | Eternal Knot Games Misfit Studios | d20 Modern 1 |
| Stonehell Dungeon Supplements | The Society of Torch, Pole and Rope | Labyrinth Lord 2 |
| Story Maps | Savage Mojo | Generic 1 |
| Storypath Cards | Nocturnal White Wolf Publishing | Generic 1 |
| Strange Aeons | Chaosium | Call of Cthulhu 5-6 |
| Street-Level Archetypes | Green Ronin Publishing | Mutants & Masterminds 2 |
| Strongholds | EN Publishing | Dungeons & Dragons 4 |
| Subsector Sourcebook | Gypsy Knights Games | Traveller / Mongoose 1 |
| Summer Class Blitz | Drop Dead Studios | Pathfinder 1 |
| Sunless Citadel Adventure Path | Wizards of the Coast | Dungeons & Dragons 3 |
| SUP (Supplement) Series | Old Soul Games | Blood & Treasure 1 |
| Super Endless Quest / AD&D Adventure Gamebook | TSR | Super Endless Quest 1 |
| Superior Synergy | Misfit Studios | Mutants & Masterminds 2 d20 3.5 d20 Modern 1 |
| Supers Seeds | Expeditious Retreat Press | Generic 1 |
| Supplements (Hideouts & Hoodlums) | Games by Scott Casper Great Scott! Games | Hideouts & Hoodlums 1 |
| Suppressed Transmissions | Steve Jackson Games | Generic |
| Swords & Wizardry WhiteBox Books | Brave Halfling Publishing | Swords & Wizardry / White Box 1 |
| Sword\'s Path Glory | Leading Edge Games | Generic 1 |
| Tales from the Blood Plateau | MonkeyGod Enterprises | d20 3 |
| Terminal Identity | Adamant Entertainment | d20 Modern 1 |
| The "C" (Competition) Modules | TSR Wizards of the Coast | AD&D 1 Dungeons & Dragons 4 |
| The "GA" (General Adventure) Modules | TSR | AD&D 2 |
| The "MC" (Monstrous Compendium) Volumes | TSR | AD&D 2 |
| The "N" (Novice) Modules | TSR | AD&D 1-2 |
| The "TSAC" (Top Secret/S.I. Accessories) | TSR | Top Secret/S.I. 1 |
| The Abyssal Plague Prologues | Wizards of the Coast | Fiction |
| The Big Book of Little Games | John Wick Presents | Generic / One-Off System 1 |
| The Books of Archetypes | Eden Studios | Unisystem |
| The Books of Magic | 4 Winds Fantasy Gaming | Pathfinder 1 |
| The Complete Dungeon Master Series | Integrated Games | Generic 1 |
| The Core Specialist Wizard | Misfit Studios | d20 3.5 |
| The Endless Quest Collector\'s Sets | TSR | Fiction 1 |
| The Endless Vault | Emerald Press | Dungeons & Dragons 4 Generic 1 |
| The Enduring | UKG Publishing | d20 3.5 |
| The Field Guide to Superheroes! Volumes | Vigilance Press | Icons 1 |
| The Forbidden Monsters of Foree | Skirmisher Publishing | Generic 1 |
| The Future Soldier | SteamPower Publishing | d20 Modern 1 |
| The Game Masters Collection of Sound Effects | Toxic Bag Productions | Generic 1 |
| The Key of the Fey | Emerald Press | Dungeons & Dragons 4 |
| The Kobold Guide to Game Design | Open Design | Generic 1 |
| The Lazy GM | Creative Conclave The Creative Conclave | Pathfinder 1 d20 3.5 |
| The Mini Manors | GM Games | Swords & Wizardry 1 |
| The Necromancer "DM" (Dungeon Master) Series | Necromancer Games | d20 3 |
| The Necromancer "L" (Lair) Adventures | Necromancer Games | d20 3-3.5 |
| The Necromancer "R" (Rappan Athuk) Adventures | Necromancer Games | d20 3 |
| The Nine Doctrines of Darkness | Dimension Six | Generic 1 |
| The Noble Wild | Skirmisher Publishing | Pathfinder 1 d20 3.5 d20 Modern 1 |
| The Northlands Saga | Frog God Games | Pathfinder 1 Swords & Wizardry 1 |
| The Order of the Stick | Giant in the Playground | Fiction |
| The Ruined Town | 0one Games | Generic 1 |
| The Secrets of... | Rite Publishing | Pathfinder 1 |
| The Sharp End | Adamant Entertainment | d20 3.5 |
| The Tomes of Horror | Necromancer Games | d20 3-3.5 |
| The Virtuous and the Vile | Clockwork Gnome Publishing | Labyrinth Lord 2 Pathfinder 1 |
| This Old Haunted House | Chaosium | Call of Cthulhu 6 Generic 1 |
| Three Quick Games about the Human Heart | Black and Green Games | Generic 1 Generic / One-Off System |
| Thrilling Tales 2e | Adamant Entertainment Cubicle 7 Entertainment | Savage Worlds 2 |
| Thrilling Tales Adventures | Adamant Entertainment Hero Games | Fate 3 HERO 5 Savage Worlds 2 d20 Modern 1 |
| Tile Designer | 0one Games | Generic 1 |
| TM (Technical Manuals) | DSL Ironworks | Traveller 1 |
| Tournaments, Fairs, & Taverns | EN Publishing | Dungeons & Dragons 4 |
| Towers of Adventure | Troll Lord Games | Castles & Crusades 1 |
| Traveller Adventures | Mongoose Publishing | Traveller / Mongoose 1 |
| Traveller Books | Mongoose Publishing | Traveller / Mongoose 1 |
| Traveller Referee's Aids | Mongoose Publishing | Traveller / Mongoose 1 |
| Traveller Ship Books | Moon Toad Publishing | Traveller / Mongoose 1 |
| Traveller Special Supplements | Mongoose Publishing | Traveller / Mongoose 1 |
| Traveller Supplements | Mongoose Publishing | Traveller / Mongoose 1 |
| Traveller Vehicle Books | Moon Toad Publishing | Traveller / Mongoose 1 |
| Travellers' Tales | Mongoose Publishing | Legend / Mongoose 1 d20 3 |
| Treasure Chest Unlocked | Sword's Edge Publishing | d20 3.5 |
| Treasure Chests | Tricky Owlbear Publishing | d20 3.5 |
| Treasure Quests | Fast Forward Entertainment | d20 3 |
| Tribes | Raging Swan Press | Pathfinder 1 |
| Troll in the Corner Presents | Troll in the Corner | Pathfinder 1 |
| Troll in the Corner's Magic Emporium | Troll in the Corner | Pathfinder 1 |
| Troll in the Corner\'s Magical Emporium | Troll in the Corner | Pathfinder 1 |
| True20 Role Handbooks | Green Ronin Publishing | True20 2 |
| TS (Top Secret) Supplements | TSR | Top Secret 1-2 |
| Tyranny of Dragons | Wizards of the Coast | Dungeons & Dragons 5 |
| U Adventures | SmiteWorks Troll Lord Games | Castles & Crusades 1 |
| UAC (Usherwood Adventure or High-Adventure from Middle-School) Modules | Usherwood Publishing | OSRIC 2 |
| UK (United Kingdom) Adventures | TSR | AD&D 1 |
| Ultimate Books | Mongoose Publishing | d20 3-3.5 |
| Ultimate Fan Guides | Guardians of Order | Big Eyes, Small Mouth 2-2.5 |
| Ultimate Plug-Ins | Legendary Games | Pathfinder 1 |
| Ultimate Relationships Characters | Legendary Games | Pathfinder 1 |
| Ultimate Sourcebooks | Hero Games | HERO 4-6 |
| Undefeatable | LPJ Design | Pathfinder 1 |
| UNTIL Superpowers Databases | Hero Games | HERO 5 |
| V&V Most Wanted | Fantasy Games Unlimited | Villains and Vigilantes 2 |
| Van Graaf\'s Journals | Mongoose Publishing | Pathfinder 1 |
| Venture 4th | Adamant Entertainment | Dungeons & Dragons 4 |
| Venture 4th: Design Kits | Adamant Entertainment | Dungeons & Dragons 4 |
| Venture 4th: Game Tiles | Adamant Entertainment | Dungeons & Dragons 4 |
| Venture 4th: Warlock Pacts | Adamant Entertainment | Dungeons & Dragons 4 |
| Villanous Archetypes | Green Ronin Publishing | Mutants & Masterminds 2 |
| War of the Dead: Chapter Two | Daring Entertainment | Savage Worlds 2 |
| Warscapes | SkeletonKey Games | Generic 1 |
| Weapons of Mecha Destruction | LPJ Design | d20 Modern 1 |
| Weapons of Power Armor Destruction | LPJ Design | d20 Modern 1 |
| Weapons of Starship Destruction | LPJ Design | d20 Modern 1 |
| Wellstone City Chronicles | Silver Gryphon Games | Savage Worlds 2 Ęther 1 |
| Western Seeds | Expeditious Retreat Press | Generic 1 |
| Westgate Adventures! | Johnny Rook Games | OSRIC 2 |
| What's New | Palliard Press Studio Foglio | Fiction |
| Wicked Additions Sets | Dwarven Forge | Generic 1 |
| Wicked Fantasy | John Wick Presents | Pathfinder 1 |
| Wicked Fantasy Factory | Goodman Games | Dungeons & Dragons 4 d20 3.5 |
| Wizards Presents Previews | Wizards of the Coast | Dungeons & Dragons 4 |
| World Building | Bards and Sages Publishing | Generic 1 |
| World Building Library | Expeditious Retreat Press | d20 3.5 |
| World\'s Largest... | AEG | d20 3-3.5 |
| Wyrms & Warlocks | Goblinoid Games | Generic 1 OSRIC 1 |
| X (Expert) Modules (fan-made) | Self-published | D&D / Basic 1 |
| Ye Bookes of Monstres | Chaosium | Call of Cthulhu 5 |
| \"AX\" OSR Gaming Accessory | New Big Dragon Games Unlimited | D&D / OSR 1 |
| \"C\" Series of Modules | SmiteWorks Troll Lord Games | Castles & Crusades 1 D&D / OSR 1 Dungeons & Dragons 5 d20 3 |