Search
Index letter Search: O (529 results)
| 6d6 2 |
| 6d6 Core 1 |
Outbreak!
6d6Fireball.com: 6d6 Core 1 (2011 )
6d6Fireball.com: 6d6 Core 1 (2011 )
| AD&D 1 |
OA2: Night of the Seven Swords
TSR: AD&D 1 (1986 )
TSR: AD&D 1 (1986 )
OA3: Ochimo: The Spirit Warrior
TSR: AD&D 1 (1987 )
TSR: AD&D 1 (1987 )
OA4: Blood of the Yakuza
TSR: AD&D 1 (1987 )
TSR: AD&D 1 (1987 )
OA5: Mad Monkey vs the Dragon Claw
TSR: AD&D 1 (1989 )
TSR: AD&D 1 (1989 )
OP1: Tales of the Outer Planes
TSR: AD&D 1 (1988 )
TSR: AD&D 1 (1988 )
| AD&D 2 |
O1: Harbinger of Darkness
Underworld Publishing: AD&D 2 (1992 )
Underworld Publishing: AD&D 2 (1992 )
OA6: Ronin Challenge
TSR: AD&D 2 (1990 )
TSR: AD&D 2 (1990 )
OA7: Test of the Samurai
TSR: AD&D 2 (1990 )
TSR: AD&D 2 (1990 )
The Oerth Journal #1
The Oerth Journal: AD&D 2 (1995 PDF)
The Oerth Journal: AD&D 2 (1995 PDF)
The Oerth Journal #3
Council of Greyhawk: AD&D 2 (1996 PDF)
Council of Greyhawk: AD&D 2 (1996 PDF)
The Oerth Journal #4
Council of Greyhawk: AD&D 2 (1996 PDF)
Council of Greyhawk: AD&D 2 (1996 PDF)
The Oerth Journal #5
Council of Greyhawk: AD&D 2 (1997 PDF)
Council of Greyhawk: AD&D 2 (1997 PDF)
The Oerth Journal #6
Council of Greyhawk: AD&D 2 (1997 PDF)
Council of Greyhawk: AD&D 2 (1997 PDF)
The Oerth Journal #7
Council of Greyhawk: AD&D 2 (1998 PDF)
Council of Greyhawk: AD&D 2 (1998 PDF)
The Oerth Journal #8
Council of Greyhawk: AD&D 2 (1998 PDF)
Council of Greyhawk: AD&D 2 (1998 PDF)
The Oerth Journal #9
Council of Greyhawk: AD&D 2 (1999 PDF)
Council of Greyhawk: AD&D 2 (1999 PDF)
The Oerth Journal #10: Discovery & Exploration
Council of Greyhawk: AD&D 2 (1999 PDF)
Council of Greyhawk: AD&D 2 (1999 PDF)
The Oerth Journal #11
Council of Greyhawk: AD&D 2 (2000 PDF)
Council of Greyhawk: AD&D 2 (2000 PDF)
The Oerth Journal #12: Recompilation
Council of Greyhawk: AD&D 2 (2002 PDF)
Council of Greyhawk: AD&D 2 (2002 PDF)
Of Ships and the Sea
TSR: AD&D 2 (1997 )
TSR: AD&D 2 (1997 )
On Hallowed Ground
TSR: AD&D 2 (1996 )
TSR: AD&D 2 (1996 )
| Advanced Fighting Fantasy 2 |
Out of the Pit
Cubicle 7 Entertainment: Advanced Fighting Fantasy 2 (2011 )
Arion Games: Advanced Fighting Fantasy 2 (2011 )
Cubicle 7 Entertainment: Advanced Fighting Fantasy 2 (2011 )
Arion Games: Advanced Fighting Fantasy 2 (2011 )
| Adventure System 3 |
Outland - Adventure System Gazetteer
Idyll Creations: Adventure System 3 (2021 PDF)
Idyll Creations: Adventure System 3 (2021 PDF)
| Age of Rebellion 1 |
Onslaught at Arda I
Fantasy Flight Games: Age of Rebellion 1 (2014 Hardcover)
Fantasy Flight Games: Age of Rebellion 1 (2014 Hardcover)
| Alternity 1 |
Outbound: An Explorer's Guide
TSR: Alternity 1 (1999 )
TSR: Alternity 1 (1999 )
| Ars Magica 2 |
The Order of Hermes
Lion Rampant: Ars Magica 2 (1990 )
Lion Rampant: Ars Magica 2 (1990 )
| Ars Magica 4 |
Ordo Nobilis: Mythic Europe's Nobility
Atlas Games: Ars Magica 4 (2000 )
Atlas Games: Ars Magica 4 (2000 )
| Book of War 1 |
Original Edition Delta: Book of War
Self-published: Book of War 1 (2011 Digest)
Self-published: Book of War 1 (2011 Digest)
| BRP 1 |
Other Suns
Fantasy Games Unlimited: BRP 1 (1983 )
Fantasy Games Unlimited: BRP 1 (1983 )
| BRP 2 |
Operation Ulysses
Chaosium: BRP 2 (2011 )
Chaosium: BRP 2 (2011 )
Outpost 19
Chaosium: BRP 2 (2008 PDF)
Chaosium: BRP 2 (2008 PDF)
| Bureau 13 3 |
Origins of Bureau 13: The Black Powder Years
Tri Tac Games: Bureau 13 3 (2002 PDF)
Tri Tac Games: Bureau 13 3 (2002 PDF)
| Call of Cthulhu 6 |
Once Men
Chaosium: Call of Cthulhu 6 (2008 )
Chaosium: Call of Cthulhu 6 (2008 )
Our Ladies of Sorrow
Miskatonic River Press: Call of Cthulhu 6 (2009 )
Miskatonic River Press: Call of Cthulhu 6 (2009 )
| Call of Cthulhu 7 |
Our American Cousins
Cubicle 7 Entertainment: Call of Cthulhu 7 (2017 )
Cubicle 7 Entertainment: Call of Cthulhu 7 (2017 )
| Castles & Crusades 1 |
Of Gods & Monsters
Troll Lord Games: Castles & Crusades 1 (2009 )
Troll Lord Games: Castles & Crusades 1 (2010 Hardcover)
Troll Lord Games: Castles & Crusades 1 (2010 Digest)
Troll Lord Games: Castles & Crusades 1 (2009 )
Troll Lord Games: Castles & Crusades 1 (2009 )
Troll Lord Games: Castles & Crusades 1 (2010 Hardcover)
Troll Lord Games: Castles & Crusades 1 (2010 Digest)
Troll Lord Games: Castles & Crusades 1 (2009 )
| Cepheus Engine 1 |
| Changeling: The Lost 2 |
Oak, Ash, & Thorn: The Changeling: The Lost Second Edition Companion
Onyx Path Publishing: Changeling: The Lost 2 (2020 )
Onyx Path Publishing: Changeling: The Lost 2 (2020 )
| CORPS 1 |
Organization Book 1
BTRC: CORPS 1 (1992 )
BTRC: CORPS 1 (1992 )
| Cthulhu Confidential 1 |
One for the Money
Pelgrane Press: Cthulhu Confidential 1 (2017 PDF)
Pelgrane Press: Cthulhu Confidential 1 (2017 PDF)
| Cthulhu Live 3 |
The Old Man of Damascus
Skirmisher Publishing: Cthulhu Live 3 (2007 PDF)
Skirmisher Publishing: Cthulhu Live 3 (2007 PDF)
| Custom 1 |
One Foot in the Grave
Creepy Doll Studios: Custom 1 (2013 PDF)
Creepy Doll Studios: Custom 1 (2013 PDF)
| Cyberpunk |
The Osiris Chip
Atlas Games: Cyberpunk (1992 )
Atlas Games: Cyberpunk (1992 )
| D&D / Basic |
OD&DITIES #1
Self-published: D&D / Basic (2000 PDF)
Self-published: D&D / Basic (2000 PDF)
OD&DITIES #2
Self-published: D&D / Basic (2000 PDF)
Self-published: D&D / Basic (2000 PDF)
OD&DITIES #3
Self-published: D&D / Basic (2001 PDF)
Self-published: D&D / Basic (2001 PDF)
OD&DITIES #4
Self-published: D&D / Basic (2001 PDF)
Self-published: D&D / Basic (2001 PDF)
OD&DITIES #5
Self-published: D&D / Basic (2001 PDF)
Self-published: D&D / Basic (2001 PDF)
OD&DITIES #6
Self-published: D&D / Basic (2001 PDF)
Self-published: D&D / Basic (2001 PDF)
OD&DITIES #7
Self-published: D&D / Basic (2002 PDF)
Self-published: D&D / Basic (2002 PDF)
OD&DITIES #8
Self-published: D&D / Basic (2002 PDF)
Self-published: D&D / Basic (2002 PDF)
OD&DITIES #9
Self-published: D&D / Basic (2003 PDF)
Self-published: D&D / Basic (2003 PDF)
OD&DITIES #10
Transfinite Publications: D&D / Basic (2003 PDF)
Transfinite Publications: D&D / Basic (2003 PDF)
OD&DITIES #11
Self-published: D&D / Basic (2003 PDF)
Self-published: D&D / Basic (2003 PDF)
OD&DITIES #12
Self-published: D&D / Basic (2004 PDF)
Self-published: D&D / Basic (2004 PDF)
| D&D / Basic 2 |
| D&D / Original 1 |
Of Skulls and Scrapfaggot Green
Judges Guild: D&D / Original 1 (1979 )
Judges Guild: D&D / Original 1 (1979 )
Original Dungeons & Dragons
Wizards of the Coast: D&D / Original 1 (2013 Box)
Wizards of the Coast: D&D / Original 1 (2013 Box)
Original Edition Delta: Book of Spells
Self-published: D&D / Original 1 (2009 Digest)
Self-published: D&D / Original 1 (2009 Digest)
Original Edition Options: Cavalier, Paladin & Squire
Brave Halfling Publishing: D&D / Original 1 (2009 PDF)
Brave Halfling Publishing: D&D / Original 1 (2009 PDF)
Original Edition Options: The Halfling Adventurer
Brave Halfling Publishing: D&D / Original 1 (2009 PDF)
Brave Halfling Publishing: D&D / Original 1 (2009 PDF)
| D&D / OSR 1 |
One-Page Romps: A Simple Request
Genius Loci Games: D&D / OSR 1 (2014 Looseleaf)
Genius Loci Games: D&D / OSR 1 (2014 Looseleaf)
OSR Bonus Cards: Fantasy Deck #1
Small Niche Games: D&D / OSR 1 (2010 PDF)
Small Niche Games: D&D / OSR 1 (2010 PDF)
| d20 3 |
Oathbound: Arena
Bastion Press: d20 3 (2003 )
Bastion Press: d20 3 (2003 )
Oathbound: Domains of the Forge
Bastion Press: d20 3 (2002 Hardcover)
Bastion Press: d20 3 (2002 Hardcover)
Oathbound: Plains of Penance
Bastion Press: d20 3 (2002 )
Bastion Press: d20 3 (2002 )
Oathbound: Wrack & Ruin
Bastion Press: d20 3 (2003 )
Bastion Press: d20 3 (2003 )
Occult Items of Power
Fast Forward Entertainment: d20 3 (2002 Hardcover)
Fast Forward Entertainment: d20 3 (2002 Hardcover)
Occult Lore
Atlas Games: d20 3 (2002 Hardcover)
Atlas Games: d20 3 (2002 Hardcover)
The Ogre City of Drahk'Suhl
AEG: d20 3 (2002 )
AEG: d20 3 (2002 )
Old Vinnengael: City of Sorrows
Sovereign Press: d20 3 (2002 )
Sovereign Press: d20 3 (2002 )
Olenar's Heartstone
Fantasy Flight Games: d20 3 (2001 )
Fantasy Flight Games: d20 3 (2001 )
One Thousand Faces: Villains & Scoundrels
Citizen Games: d20 3 (2002 )
Citizen Games: d20 3 (2002 )
Orcfest
Fast Forward Entertainment: d20 3 (2002 )
Fast Forward Entertainment: d20 3 (2002 )
Order Book: Michaelites
Sword & Sorcery: d20 3 (2003 )
Sword & Sorcery: d20 3 (2003 )
Out of Body, Out of Mind
AEG: d20 3 (2000 )
AEG: d20 3 (2000 )
Outpost Qether
OtherWorld Creations: d20 3 (2001 PDF)
OtherWorld Creations: d20 3 (2001 PDF)
| d20 3.5 |
Oathbound: Eclipse
Epidemic Books: d20 3.5 (2010 )
Epidemic Books: d20 3.5 (2010 )
Oathbound: Mysteries of Arena
Bastion Press: d20 3.5 (2004 )
Bastion Press: d20 3.5 (2004 )
OGL-Fantasy Lite: Basic Player's Guide
S.T. Cooley Publishing: d20 3.5 (2004 PDF)
S.T. Cooley Publishing: d20 3.5 (2004 PDF)
The Old Rock Tower
Unicorn Rampant Publishing: d20 3.5 (2008 PDF)
Unicorn Rampant Publishing: d20 3.5 (2008 PDF)
One Million Magic Items
Adamant Entertainment: d20 3.5 (2007 PDF)
Adamant Entertainment: d20 3.5 (2007 PDF)
Only Acrobats Need Apply
Self-published: d20 3.5 (2013 PDF)
Self-published: d20 3.5 (2013 PDF)
Open Gaming Bazaar #1
E. W. Morton: d20 3.5 (2006 PDF)
E. W. Morton: d20 3.5 (2006 PDF)
The Open Gaming Bazaar #2
E. W. Morton: d20 3.5 (2006 PDF)
E. W. Morton: d20 3.5 (2006 PDF)
The Open Gaming Bazaar #3
E. W. Morton: d20 3.5 (2007 PDF)
E. W. Morton: d20 3.5 (2007 PDF)
Orbis Mundi
Phalanx Games Design: d20 3.5 (2006 PDF)
Phalanx Games Design: d20 3.5 (2006 PDF)
The Order of the Gilded Rose
Adamant Entertainment: d20 3.5 (2005 PDF)
Adamant Entertainment: d20 3.5 (2005 PDF)
| d20 Modern 1 |
Odyssey Prime
Misfit Studios: d20 Modern 1 (2006 PDF)
Eden Studios: d20 Modern 1 (2006 PDF)
Misfit Studios: d20 Modern 1 (2010 Hardcover)
Eden Studios: d20 Modern 1 (2010 Hardcover)
Misfit Studios: d20 Modern 1 (2010 )
Eden Studios: d20 Modern 1 (2010 )
Misfit Studios: d20 Modern 1 (2006 PDF)
Eden Studios: d20 Modern 1 (2006 PDF)
Misfit Studios: d20 Modern 1 (2010 Hardcover)
Eden Studios: d20 Modern 1 (2010 Hardcover)
Misfit Studios: d20 Modern 1 (2010 )
Eden Studios: d20 Modern 1 (2010 )
Odyssey Prime: Southern Discomfort
Misfit Studios: d20 Modern 1 (2006 PDF)
Misfit Studios: d20 Modern 1 (2010 )
Eden Studios: d20 Modern 1 (2010 )
Misfit Studios: d20 Modern 1 (2006 PDF)
Misfit Studios: d20 Modern 1 (2010 )
Eden Studios: d20 Modern 1 (2010 )
Once Upon a Time
Avalon Game Company: d20 Modern 1 (2010 PDF)
Avalon Game Company: d20 Modern 1 (2010 PDF)
Operation Dead Drop
OtherWorld Creations: d20 Modern 1 (2003 PDF)
OtherWorld Creations: d20 Modern 1 (2003 PDF)
Operation Tunnel RAT
SteamPower Publishing: d20 Modern 1 (2007 PDF)
SteamPower Publishing: d20 Modern 1 (2007 PDF)
Operation Winter Kill
OtherWorld Creations: d20 Modern 1 (2004 PDF)
OtherWorld Creations: d20 Modern 1 (2004 PDF)
Out of the Vaults
Sword & Sorcery: d20 Modern 1 (2004 )
Sword & Sorcery: d20 Modern 1 (2004 )
| DC Heroes 1 |
Operation: Atlantis
Mayfair Games: DC Heroes 1 (1988 )
Mayfair Games: DC Heroes 1 (1988 )
| DC Heroes 2 |
The Otherwhere Quest
Mayfair Games: DC Heroes 2 (1990 )
Mayfair Games: DC Heroes 2 (1990 )
| Deathwatch 1 |
Oblivion's Edge
Deathwatch: Deathwatch 1 (2010 PDF)
Deathwatch: Deathwatch 1 (2010 PDF)
The Outer Reach
Fantasy Flight Games: Deathwatch 1 (2012 Hardcover)
Fantasy Flight Games: Deathwatch 1 (2012 Hardcover)
| Decima System 1 |
Odessa Cache
Brutal Games: Decima System 1 (2008 PDF)
Brutal Games: Decima System 1 (2008 PDF)
| Delta Green 1 |
Observer Effect
Arc Dream Publishing: Delta Green 1 (2016 )
Arc Dream Publishing: Delta Green 1 (2016 )
| Director's Cut |
Outgunned
Two Little Mice: Director's Cut (2023 Hardcover)
Free League Publishing: Director's Cut (2023 Hardcover)
Two Little Mice: Director's Cut (2023 Hardcover)
Free League Publishing: Director's Cut (2023 Hardcover)
| Dragon Brigade 1 |
Opening Salvo
Margaret Weis Productions: Dragon Brigade 1 (2011 )
Margaret Weis Productions: Dragon Brigade 1 (2011 )
| Dragon Warriors |
Out of the Shadows
Corgi Books, UK: Dragon Warriors (1986 )
Corgi Books, UK: Dragon Warriors (1986 )
| Dragon Warriors 1.1 |
Ordo Draconis #1
Magnum Opus Press: Dragon Warriors 1.1 (2009 PDF)
Magnum Opus Press: Dragon Warriors 1.1 (2009 PDF)
| Dungeon Crawl Classics 1 |
The Old God's Return
Goodman Games: Dungeon Crawl Classics 1 (2013 )
Goodman Games: Dungeon Crawl Classics 1 (2013 )
The One Who Watches From Below
Goodman Games: Dungeon Crawl Classics 1 (2014 )
Goodman Games: Dungeon Crawl Classics 1 (2014 )
| Dungeons & Dragons 3 |
Oriental Adventures
Wizards of the Coast: Dungeons & Dragons 3 (2001 Hardcover)
Wizards of the Coast: Dungeons & Dragons 3 (2001 Hardcover)
Over the Edge
Wizards of the Coast: Dungeons & Dragons 3 (2004 HTML)
Wizards of the Coast: Dungeons & Dragons 3 (2004 HTML)
| Dungeons & Dragons 3.5 |
The Oerth Journal #21
Council of Greyhawk: Dungeons & Dragons 3.5 (2007 PDF)
Council of Greyhawk: Dungeons & Dragons 3.5 (2007 PDF)
The Oerth Journal #22
Council of Greyhawk: Dungeons & Dragons 3.5 (2007 PDF)
Council of Greyhawk: Dungeons & Dragons 3.5 (2007 PDF)
The Oerth Journal #23: Maure Castle Special Edition
Council of Greyhawk: Dungeons & Dragons 3.5 (2008 PDF)
Council of Greyhawk: Dungeons & Dragons 3.5 (2008 PDF)
The Oerth Journal #24
Self-published: Dungeons & Dragons 3.5 (2008 PDF)
Self-published: Dungeons & Dragons 3.5 (2008 PDF)
The Oerth Journal #25: 25th Anniversary Gary Gygax Tribute Issue
Self-published: Dungeons & Dragons 3.5 (2009 PDF)
Self-published: Dungeons & Dragons 3.5 (2009 PDF)
| Dungeons & Dragons 4 |
Oakling 4th Edition Player Character Race
Alluria Publishing: Dungeons & Dragons 4 (2008 PDF)
Alluria Publishing: Dungeons & Dragons 4 (2008 PDF)
Obitu 4th Edition Player Character Race
Alluria Publishing: Dungeons & Dragons 4 (2008 PDF)
Alluria Publishing: Dungeons & Dragons 4 (2008 PDF)
The Old Rock Tower
Unicorn Rampant Publishing: Dungeons & Dragons 4 (2009 PDF)
Unicorn Rampant Publishing: Dungeons & Dragons 4 (2009 PDF)
One Dark Night in Weeping Briar
Wizards of the Coast: Dungeons & Dragons 4 (2009 )
Wizards of the Coast: Dungeons & Dragons 4 (2009 )
Open Grave: Secrets of the Undead
Wizards of the Coast: Dungeons & Dragons 4 (2009 Hardcover)
Wizards of the Coast: Dungeons & Dragons 4 (2009 Hardcover)
Oracle of Orcas
Alea Publishing Group: Dungeons & Dragons 4 (2009 PDF)
Alea Publishing Group: Dungeons & Dragons 4 (2009 PDF)
| Dungeons & Dragons 5 |
Odyssey of the Dragonlords
Modiphius Entertainment: Dungeons & Dragons 5 (2019 Hardcover)
Arcanum Worlds: Dungeons & Dragons 5 (2019 Hardcover)
Modiphius Entertainment: Dungeons & Dragons 5 (2019 Hardcover)
Arcanum Worlds: Dungeons & Dragons 5 (2019 Hardcover)
Original Adventures Reincarnated #1: Into the Borderlands
Goodman Games: Dungeons & Dragons 5 (2018 Hardcover)
Goodman Games: Dungeons & Dragons 5 (2018 Hardcover)
Original Adventures Reincarnated #2: The Isle of Dread
Goodman Games: Dungeons & Dragons 5 (2018 Hardcover)
Goodman Games: Dungeons & Dragons 5 (2018 Hardcover)
Original Adventures Reincarnated #3: Expedition to the Barrier Peaks
Goodman Games: Dungeons & Dragons 5 (2019 Hardcover)
Goodman Games: Dungeons & Dragons 5 (2019 Hardcover)
Original Adventures Reincarnated #4: The Lost City
Goodman Games: Dungeons & Dragons 5 (2020 Hardcover)
Goodman Games: Dungeons & Dragons 5 (2020 Hardcover)
Out of the Abyss
Wizards of the Coast: Dungeons & Dragons 5 (2015 Hardcover)
Wizards of the Coast: Dungeons & Dragons 5 (2015 Hardcover)
| Earthdawn 1 |
The Ork Nation of Cara Fahd
FASA Corporation: Earthdawn 1 (1998 )
FASA Corporation: Earthdawn 1 (1998 )
| Elric! 1 |
Old Hrolmar
Chaosium: Elric! 1 (2006 )
Chaosium: Elric! 1 (2006 )
| Exalted 1 |
The Outcaste
White Wolf Publishing: Exalted 1 (2004 )
White Wolf Publishing: Exalted 1 (2004 )
| Fading Suns 2 |
Orphaned Races: Ascorbites and Hironem
Holistic Design: Fading Suns 2 (2003 )
Holistic Design: Fading Suns 2 (2003 )
| Fate Accelerated 1 |
OmegaZone Instant Setting Deck
Brooklyn Indie Games: Fate Accelerated 1 (2014 Pack)
Brooklyn Indie Games: Fate Accelerated 1 (2014 Pack)
OmegaZone Setting Guide
Brooklyn Indie Games: Fate Accelerated 1 (2014 )
Brooklyn Indie Games: Fate Accelerated 1 (2014 )
Brooklyn Indie Games: Fate Accelerated 1 (2014 )
Brooklyn Indie Games: Fate Accelerated 1 (2014 )
| Feng Shui 1.5 |
On Location
Atlas Games: Feng Shui 1.5 (2002 )
Atlas Games: Feng Shui 1.5 (2002 )
| Fiasco 1 |
Objective Zebra
Bully Pulpit Games: Fiasco 1 (2011 PDF)
Bully Pulpit Games: Fiasco 1 (2011 PDF)
| Fiction |
An Opportunity for Profit
TSR: Fiction (1998 )
TSR: Fiction (1998 )
Oath of Nerull
Wizards of the Coast: Fiction (2002 )
Wizards of the Coast: Fiction (2002 )
Oath of Vigilance
Wizards of the Coast: Fiction (2011 )
Wizards of the Coast: Fiction (2011 )
Obsidian Ridge
Wizards of the Coast: Fiction (2008 )
Wizards of the Coast: Fiction (2008 )
Odyssey
Wizards of the Coast: Fiction (2001 )
Wizards of the Coast: Fiction (2001 )
Of Aged Angels
Wizards of the Coast: Fiction (2001 )
Wizards of the Coast: Fiction (2001 )
Ogre Hunt
Tentacles Press: Fiction (2017 )
Tentacles Press: Fiction (2017 )
On the Verge
TSR: Fiction (1998 )
TSR: Fiction (1998 )
Once Upon An Apocalypse
Chaosium: Fiction (2014 )
Chaosium: Fiction (2014 )
The Orb of Xoriat
Wizards of the Coast: Fiction (2005 )
Wizards of the Coast: Fiction (2005 )
The Order of the Stick: Don't Split the Party
Giant in the Playground: Fiction (2009 )
Giant in the Playground: Fiction (2009 )
The Order of the Stick: Dungeon Crawlin' Fools
Giant in the Playground: Fiction (2005 TPB)
Giant in the Playground: Fiction (2005 TPB)
The Order of the Stick: No Cure for the Paladin Blues
Giant in the Playground: Fiction (2006 TPB)
Giant in the Playground: Fiction (2006 TPB)
The Order of the Stick: On the Origin of PCs
Giant in the Playground: Fiction (2005 TPB)
Giant in the Playground: Fiction (2005 TPB)
The Order of the Stick: Start of Darkness
Giant in the Playground: Fiction (2007 )
Giant in the Playground: Fiction (2007 )
The Order of the Stick: War and XPs
Giant in the Playground: Fiction (2008 )
Giant in the Playground: Fiction (2008 )
Out of Nippon
West End Games: Fiction (1992 )
West End Games: Fiction (1992 )
The Outcast
TSR: Fiction (1993 )
TSR: Fiction (1993 )
The Overseer
White Wolf Publishing: Fiction (2003 )
White Wolf Publishing: Fiction (2003 )
| Fifth Cycle 1 |
Out of the Dark
Shield Games: Fifth Cycle 1 (1990 )
Shield Games: Fifth Cycle 1 (1990 )
| Fighting Fantasy 1 |
Out of the Pit
Puffin Books: Fighting Fantasy 1 (1989 )
Puffin Books: Fighting Fantasy 1 (1989 )
| Gemini 1 |
Orschild: Winds of War
Cell Entertainment: Gemini 1 (1999 )
Cell Entertainment: Gemini 1 (1999 )
| Generic |
Olokand Castle
Columbia Games: Generic (2003 Looseleaf)
Columbia Games: Generic (2003 Looseleaf)
Orbaal
Columbia Games: Generic (1987 )
Columbia Games: Generic (1987 )
| Generic 1 |
ODDS #1
Farsight Games, UK: Generic 1 (2008 )
Farsight Games, UK: Generic 1 (2008 )
ODDS #2
Farsight Games, UK: Generic 1 (2008 )
Farsight Games, UK: Generic 1 (2008 )
ODDS #3: Sci-Fi Special
Farsight Games, UK: Generic 1 (2008 )
Farsight Games, UK: Generic 1 (2008 )
ODDS #4
Farsight Games, UK: Generic 1 (2009 )
Farsight Games, UK: Generic 1 (2009 )
ODDS #5
Farsight Games, UK: Generic 1 (2009 )
Farsight Games, UK: Generic 1 (2009 )
ODDS #6
Farsight Games, UK: Generic 1 (2009 )
Farsight Games, UK: Generic 1 (2009 )
ODDS #7
Farsight Games, UK: Generic 1 (2009 )
Farsight Games, UK: Generic 1 (2009 )
ODDS #8
Farsight Games, UK: Generic 1 (2009 )
Farsight Games, UK: Generic 1 (2009 )
ODDS #9: Last Issue!
Farsight Games, UK: Generic 1 (2009 )
Farsight Games, UK: Generic 1 (2009 )
The Oerth Journal #2
Council of Greyhawk: Generic 1 (1995 PDF)
Council of Greyhawk: Generic 1 (1995 PDF)
The Oerth Journal #13: Recompilation
Council of Greyhawk: Generic 1 (2002 PDF)
Council of Greyhawk: Generic 1 (2002 PDF)
The Oerth Journal #14: Recompilation
Council of Greyhawk: Generic 1 (2002 PDF)
Council of Greyhawk: Generic 1 (2002 PDF)
The Oerth Journal #15
Council of Greyhawk: Generic 1 (2004 PDF)
Council of Greyhawk: Generic 1 (2004 PDF)
The Oerth Journal #16: A Chronicle of the Lands and People of the Flanaess
Council of Greyhawk: Generic 1 (2005 PDF)
Council of Greyhawk: Generic 1 (2005 PDF)
The Oerth Journal #17
Council of Greyhawk: Generic 1 (2005 PDF)
Council of Greyhawk: Generic 1 (2005 PDF)
The Oerth Journal #18: Electrum Anniversary Edition
Council of Greyhawk: Generic 1 (2006 PDF)
Council of Greyhawk: Generic 1 (2006 PDF)
The Oerth Journal #19
Council of Greyhawk: Generic 1 (2006 PDF)
Council of Greyhawk: Generic 1 (2006 PDF)
The Oerth Journal #20
Council of Greyhawk: Generic 1 (2006 PDF)
Council of Greyhawk: Generic 1 (2006 PDF)
The Official Advanced Dungeons & Dragons Coloring Album
Troubador Press: Generic 1 (1979 )
Troubador Press: Generic 1 (1979 )
The Official Price Guide to Role-Playing Games
House of Collectibles: Generic 1 (1998 )
House of Collectibles: Generic 1 (1998 )
The Official Superhero Adventure Game
Self-published: Generic 1 (1981 )
Self-published: Generic 1 (1981 )
Ogre Smash!
Destination Games: Generic 1 (1996 Digest)
Destination Games: Generic 1 (1996 Digest)
Old Lighthouse
0one Games: Generic 1 (2006 PDF)
0one Games: Generic 1 (2006 PDF)
The One Ring Core Rules
Free League Publishing: Generic 1 (2021 Hardcover)
Free League Publishing: Generic 1 (2021 Hardcover)
Open Game Table: The Anthology of Roleplaying Game Blogs, Volume 2
Self-published: Generic 1 (2010 )
Self-published: Generic 1 (2010 )
Open Game Table: The Anthology of Roleplaying Game Blogs, Volume I
Self-published: Generic 1 (2009 )
Self-published: Generic 1 (2009 )
Operation Dominoes 1: Moonshadow
Comstar Media: Generic 1 (2006 PDF)
Avenger Enterprises: Generic 1 (2006 PDF)
Comstar Media: Generic 1 (2006 PDF)
Avenger Enterprises: Generic 1 (2006 PDF)
Operation Dominoes 2: The Minds of Idsur
Comstar Media: Generic 1 (2007 PDF)
Avenger Enterprises: Generic 1 (2007 PDF)
Comstar Media: Generic 1 (2007 PDF)
Avenger Enterprises: Generic 1 (2007 PDF)
Operation Dominoes 3: The Isdur Gambit
Comstar Media: Generic 1 (2007 PDF)
Avenger Enterprises: Generic 1 (2007 PDF)
Comstar Media: Generic 1 (2007 PDF)
Avenger Enterprises: Generic 1 (2007 PDF)
Operation Dominoes 4: The Iskyar Metamorphosis
Comstar Media: Generic 1 (2008 PDF)
Avenger Enterprises: Generic 1 (2008 PDF)
Comstar Media: Generic 1 (2008 PDF)
Avenger Enterprises: Generic 1 (2008 PDF)
Operation: Fallen Reich Life Board
Fallen Publishing, UK: Generic 1 (2009 Box)
Fallen Publishing, UK: Generic 1 (2009 Box)
Orc Fortress
0one Games: Generic 1 (2006 PDF)
0one Games: Generic 1 (2006 PDF)
Orc's Lair
Destination Games: Generic 1 (1996 Digest)
Destination Games: Generic 1 (1996 Digest)
Orcus Journal
Frog God Games: Generic 1 (2012 )
Frog God Games: Generic 1 (2012 )
The Original, Revised and Expanded Tegel Manor
Gamescience: Generic 1 (1989 )
Gamescience: Generic 1 (1989 )
Otherverse America Campaign Setting
Skortched Urf' Studios: Generic 1 (2009 PDF)
Skortched Urf' Studios: Generic 1 (2009 PDF)
Outdoor Geomorphs Set One: Walled City
TSR: Generic 1 (1977 )
TSR: Generic 1 (1977 )
Outdoor Mapping Sheets
Troll Lord Games: Generic 1 (2009 Looseleaf)
Troll Lord Games: Generic 1 (2009 Looseleaf)
Outgunned Core Rulebook
Two Little Mice: Generic 1 (2023 Hardcover)
Two Little Mice: Generic 1 (2023 Hardcover)
| Generic / One-Off System 1 |
Objective Interim Modern Combat System
SPQR Studios: Generic / One-Off System 1 (2005 PDF)
SPQR Studios: Generic / One-Off System 1 (2005 PDF)
Obsidian LARP Quickstart
Twilight Games: Generic / One-Off System 1 (2005 )
Twilight Games: Generic / One-Off System 1 (2005 )
Of Gods & Heroes
Green Fairy Games: Generic / One-Off System 1 (2014 )
Green Fairy Games: Generic / One-Off System 1 (2014 )
Of Gods and Men
Non Sequitur Productions: Generic / One-Off System 1 (1991 )
Non Sequitur Productions: Generic / One-Off System 1 (1991 )
On Display
Paracelsus Games: Generic / One-Off System 1 (2015 PDF)
Paracelsus Games: Generic / One-Off System 1 (2015 PDF)
Opening The Dark
Mob United Media: Generic / One-Off System 1 (2007 )
Mob United Media: Generic / One-Off System 1 (2007 )
Operation: Fallen Reich
Fallen Publishing, UK: Generic / One-Off System 1 (2009 Hardcover)
Fallen Publishing, UK: Generic / One-Off System 1 (2009 Hardcover)
Ork! The Roleplaying Game
Green Ronin Publishing: Generic / One-Off System 1 (2000 )
Green Ronin Publishing: Generic / One-Off System 1 (2000 )
Oz: Dark and Terrible
Emerald City Expeditions: Generic / One-Off System 1 (2010 Hardcover)
Emerald City Expeditions: Generic / One-Off System 1 (2010 Hardcover)
| Godlike 1 |
One o'Clock Wake-Up
Arc Dream Publishing: Godlike 1 (2003 PDF)
Arc Dream Publishing: Godlike 1 (2003 PDF)
| GURPS 1 |
Orcslayer
Steve Jackson Games: GURPS 1 (1985 )
Steve Jackson Games: GURPS 1 (1985 )
| GURPS 3 |
The Old Stone Fort
Steve Jackson Games: GURPS 3 (1988 )
Steve Jackson Games: GURPS 3 (1988 )
| HERO 3 |
The Orgillion Horror
I.C.E.: HERO 3 (1989 )
I.C.E.: HERO 3 (1989 )
| HERO 4 |
| Hero Wars 1 |
Orlanth is Dead!
Issaries: Hero Wars 1 (2002 )
Issaries: Hero Wars 1 (2002 )
| Hunt 1 |
Overtime
Maverick Games Co.: Hunt 1 (1992 )
Maverick Games Co.: Hunt 1 (1992 )
| ICON 1 |
Once More Unto the Breach: The Movie Era Sourcebook
Self-published: ICON 1 (2001 PDF)
Self-published: ICON 1 (2001 PDF)
| Icons 1 |
Operation: Bookbinder
Vigilance Press: Icons 1 (2010 PDF)
Vigilance Press: Icons 1 (2010 PDF)
| Inferno 1 |
Out of the Abyss
Death's Edge Games: Inferno 1 (1995 )
Death's Edge Games: Inferno 1 (1995 )
| Into the Odd 1 |
Odditional Materials
Lost Pages: Into the Odd 1 (2015 )
Lost Pages: Into the Odd 1 (2015 )
| Inverted 20 1 |
One Hundred and Thirty Guns
Dakkar Unlimited: Inverted 20 1 (2009 PDF)
Dakkar Unlimited: Inverted 20 1 (2009 PDF)
| James Bond 007 1 |
Octopussy
Victory Games: James Bond 007 1 (1983 )
Victory Games: James Bond 007 1 (1983 )
On Her Majesty's Secret Service
Victory Games: James Bond 007 1 (1987 Box)
Victory Games: James Bond 007 1 (1987 Box)
| Justifiers 1 |
Out of the Mists
Star Childe Publications: Justifiers 1 (1989 )
Star Childe Publications: Justifiers 1 (1989 )
| L.I.F.E. System 2 |
Obia
Dark Phoenix Publishing: L.I.F.E. System 2 (2014 PDF)
Dark Phoenix Publishing: L.I.F.E. System 2 (2014 PDF)
| Labyrinth Lord 2 |
OD&DITIES #13
Self-published: Labyrinth Lord 2 (2010 PDF)
Self-published: Labyrinth Lord 2 (2010 PDF)
OD&DITIES #15
Self-published: Labyrinth Lord 2 (2010 PDF)
Self-published: Labyrinth Lord 2 (2010 PDF)
Old School Monster Classes
Quasar Knight Enterprises: Labyrinth Lord 2 (2014 PDF)
Quasar Knight Enterprises: Labyrinth Lord 2 (2014 PDF)
Original Edition Characters
Goblinoid Games: Labyrinth Lord 2 (2008 )
Goblinoid Games: Labyrinth Lord 2 (2008 )
Oubliette #9: Mini-adventures, spells, magic items, monsters and more...
Self-published: Labyrinth Lord 2 (2015 Digest)
Self-published: Labyrinth Lord 2 (2015 Digest)
| Lamentations of the Flame Princess 3 |
Obscene Serpent Religion
Neoplastic Press: Lamentations of the Flame Princess 3 (2014 )
Neoplastic Press: Lamentations of the Flame Princess 3 (2014 )
| LARP / One-Off 1 |
Out of Dodge
Bully Pulpit Games: LARP / One-Off 1 (2014 )
Bully Pulpit Games: LARP / One-Off 1 (2014 )
| Last Best Hope 1 |
Our Last Best Hope
Magpie Games: Last Best Hope 1 (2012 )
Magpie Games: Last Best Hope 1 (2012 )
Our Last Best Hope Expansion Book
Magpie Games: Last Best Hope 1 (2013 )
Magpie Games: Last Best Hope 1 (2013 )
| Legend of the Five Rings 1 |
Otosan Uchi
AEG: Legend of the Five Rings 1 (2000 Box)
AEG: Legend of the Five Rings 1 (2000 Box)
| Legends of the Ancient World 1 |
Orcs of the High Mountains
Dark City Games: Legends of the Ancient World 1 (2006 PDF)
Dark City Games: Legends of the Ancient World 1 (2006 PDF)
| Legends of Time and Space 1 |
Oasis
Dark City Games: Legends of Time and Space 1 (2007 )
Dark City Games: Legends of Time and Space 1 (2007 )
| Living Legends 1 |
Oil Pressure
Monkey House Games: Living Legends 1 (2010 PDF)
Monkey House Games: Living Legends 1 (2010 PDF)
| Lord of the Rings Adventure / MERP 1 |
Over the Misty Mountains Cold
I.C.E.: Lord of the Rings Adventure / MERP 1 (1993 )
I.C.E.: Lord of the Rings Adventure / MERP 1 (1993 )
| Lords of Creation 1 |
Omegakron
Avalon Hill: Lords of Creation 1 (1984 Box)
Avalon Hill: Lords of Creation 1 (1984 Box)
| Mage: The Ascension 2 |
Order of Hermes Tradition Book
White Wolf Publishing: Mage: The Ascension 2 (1997 )
White Wolf Publishing: Mage: The Ascension 2 (1997 )
The Orphans Survival Guide
White Wolf Publishing: Mage: The Ascension 2 (1998 )
White Wolf Publishing: Mage: The Ascension 2 (1998 )
| Mage: The Sorcerers Crusade 1 |
The Order of Reason
ArtHaus: Mage: The Sorcerers Crusade 1 (2001 )
ArtHaus: Mage: The Sorcerers Crusade 1 (2001 )
| MasterBook 1 |
Operation: Nightside
West End Games: MasterBook 1 (1997 )
West End Games: MasterBook 1 (1997 )
| Microlite20 1 |
Owl Hoot Trail
Pelgrane Press: Microlite20 1 (2013 )
Pelgrane Press: Microlite20 1 (2013 )
| Mind's Eye Theatre 2 |
Oblivion
White Wolf Publishing: Mind's Eye Theatre 2 (1997 )
White Wolf Publishing: Mind's Eye Theatre 2 (1997 )
| Morpheus 1 |
Operation: Hitler
Rapport Games: Morpheus 1 (1990 )
Rapport Games: Morpheus 1 (1990 )
| Mortal Coil 2 |
Old Gods: A Campaign Frame for Mortal Coil
Galileo Games: Mortal Coil 2 (2010 PDF)
Galileo Games: Mortal Coil 2 (2010 PDF)
| Mutants & Masterminds 1 |
Omlevex
Z-Man Games: Mutants & Masterminds 1 (2003 )
Z-Man Games: Mutants & Masterminds 1 (2003 )
| Obsidian |
Obsidian: The Age of Judgement
Apophis Consortium: Obsidian (1999 )
Apophis Consortium: Obsidian (1999 )
| Obsidian 2 |
Obsidian: The Age of Judgement
Apophis Consortium: Obsidian 2 (2001 Hardcover)
Apophis Consortium: Obsidian 2 (2001 Hardcover)
| octaNe |
| October Rust 1 |
October Rust
Common Fortress: October Rust 1 (2021 PDF)
Common Fortress: October Rust 1 (2021 PDF)
| October's Shadows 1 |
| Odysseus 1 |
Odysseus
Fantasy Games Unlimited: Odysseus 1 (1980 )
Fantasy Games Unlimited: Odysseus 1 (1980 )
| Og 1 |
| Og 3 |
| OGL Ancients 1 |
OGL Ancients
Mongoose Publishing: OGL Ancients 1 (2004 Hardcover)
Mongoose Publishing: OGL Ancients 1 (2004 Hardcover)
| OGL Cybernet 1 |
OGL Cybernet
Mongoose Publishing: OGL Cybernet 1 (2003 Hardcover)
Mongoose Publishing: OGL Cybernet 1 (2003 Hardcover)
| OGL Horror 1 |
OGL Horror
Mongoose Publishing: OGL Horror 1 (2003 Hardcover)
Mongoose Publishing: OGL Horror 1 (2003 Hardcover)
| OGL Steampunk 1 |
OGL Steampunk
Mongoose Publishing: OGL Steampunk 1 (2004 Hardcover)
Mongoose Publishing: OGL Steampunk 1 (2004 Hardcover)
| OGL Wild West 1 |
OGL Wild West
Mongoose Publishing: OGL Wild West 1 (2004 Hardcover)
Mongoose Publishing: OGL Wild West 1 (2004 Hardcover)
| Ogre 5 |
Ogre / G.E.V
Steve Jackson Games: Ogre 5 (2000 Box)
Steve Jackson Games: Ogre 5 (2000 Box)
Ogre Battlefields
Steve Jackson Games: Ogre 5 (2001 Box)
Steve Jackson Games: Ogre 5 (2001 Box)
The Ogre Book
Steve Jackson Games: Ogre 5 (2000 )
Steve Jackson Games: Ogre 5 (2000 )
| Ogre Miniatures 1 |
Ogre Miniatures
Steve Jackson Games: Ogre Miniatures 1 (1992 )
Steve Jackson Games: Ogre Miniatures 1 (1992 )
| Old Dragon 1 |
Old Dragon
Redbox Editora: Old Dragon 1 (2011 )
Redbox Editora: Old Dragon 1 (2011 )
| Old School Hack |
Old School Hack: The Basic Game Beta
Self-published: Old School Hack (2011 PDF)
Self-published: Old School Hack (2011 PDF)
| Old School Hack 1 |
Old School Hack Playest
Self-published: Old School Hack 1 (2010 PDF)
Self-published: Old School Hack 1 (2010 PDF)
| Old-School Essentials 1 |
Old-School Essentials Black Box
Necrotic Gnome: Old-School Essentials 1 (2019 Box)
Necrotic Gnome: Old-School Essentials 1 (2019 Box)
Old-School Essentials Classic Fantasy: Rules Tome
Necrotic Gnome: Old-School Essentials 1 (2019 )
Necrotic Gnome: Old-School Essentials 1 (2019 )
| Old-School Essentials 2 |
Old-School Essentials Advanced Fantasy Player's Tome
Necrotic Gnome: Old-School Essentials 2 (2021 )
Necrotic Gnome: Old-School Essentials 2 (2021 )
Old-School Essentials Advanced Fantasy Referee's Tome
Necrotic Gnome: Old-School Essentials 2 (2021 )
Necrotic Gnome: Old-School Essentials 2 (2021 )
Old-School Essentials Advanced Fantasy Reference Booklet
Necrotic Gnome: Old-School Essentials 2 (2021 PDF)
Necrotic Gnome: Old-School Essentials 2 (2021 PDF)
Old-School Essentials Advanced Fantasy: Druid and Illusionist Spells
Necrotic Gnome: Old-School Essentials 2 (2019 )
Necrotic Gnome: Old-School Essentials 2 (2019 )
Old-School Essentials Advanced Fantasy: Genre Rules
Necrotic Gnome: Old-School Essentials 2 (2019 )
Necrotic Gnome: Old-School Essentials 2 (2019 )
Old-School Essentials Advanced Fantasy: Monsters
Necrotic Gnome: Old-School Essentials 2 (2021 )
Necrotic Gnome: Old-School Essentials 2 (2021 )
Old-School Essentials Advanced Fantasy: Treasures
Necrotic Gnome: Old-School Essentials 2 (2021 )
Necrotic Gnome: Old-School Essentials 2 (2021 )
Old-School Essentials Classic Fantasy Referee's Screen
Necrotic Gnome: Old-School Essentials 2 (2019 )
Necrotic Gnome: Old-School Essentials 2 (2019 )
Old-School Essentials Classic Fantasy: Basic Rules
Necrotic Gnome: Old-School Essentials 2 (2019 PDF)
Necrotic Gnome: Old-School Essentials 2 (2019 PDF)
Old-School Essentials Classic Fantasy: Cleric and Magic-User Spells
Necrotic Gnome: Old-School Essentials 2 (2019 )
Necrotic Gnome: Old-School Essentials 2 (2019 )
Old-School Essentials Classic Fantasy: Genre Rules
Necrotic Gnome: Old-School Essentials 2 (2019 )
Necrotic Gnome: Old-School Essentials 2 (2019 )
Old-School Essentials Classic Fantasy: Monsters
Necrotic Gnome: Old-School Essentials 2 (2019 )
Necrotic Gnome: Old-School Essentials 2 (2019 )
Old-School Essentials Classic Fantasy: Player's Rules Tome
Necrotic Gnome: Old-School Essentials 2 (2020 )
Necrotic Gnome: Old-School Essentials 2 (2020 )
Old-School Essentials Classic Fantasy: Treasures
Necrotic Gnome: Old-School Essentials 2 (2019 )
Necrotic Gnome: Old-School Essentials 2 (2019 )
Old-School Essentials: Core Rules
Necrotic Gnome: Old-School Essentials 2 (2019 )
Necrotic Gnome: Old-School Essentials 2 (2019 )
| Omni System 1 |
Omni System
Morrigan Press: Omni System 1 (2005 )
Morrigan Press: Omni System 1 (2005 )
| Omnifray 1 |
Omnifray RPG Expert Manual
Self-published: Omnifray 1 (2009 )
Self-published: Omnifray 1 (2009 )
Omnifray: Basic Handbook
Lulu: Omnifray 1 (2008 )
Lulu: Omnifray 1 (2008 )
| Omnigon 1 |
Omnigon
Omnigon Games: Omnigon 1 (1989 )
Omnigon Games: Omnigon 1 (1989 )
Omnigon: The Alien Analog
Omnigon Games: Omnigon 1 (1989 )
Omnigon Games: Omnigon 1 (1989 )
| One Can Have Her 1 |
| One Ring 1 |
Oaths of the Riddermark
Cubicle 7 Entertainment: One Ring 1 (2017 Hardcover)
Cubicle 7 Entertainment: One Ring 1 (2017 Hardcover)
One Ring Dice Set
Cubicle 7 Entertainment: One Ring 1 (2012 Box)
Cubicle 7 Entertainment: One Ring 1 (2012 Box)
The One Ring: Adventures over the Edge of the Wild
Cubicle 7 Entertainment, UK: One Ring 1 (2014 Hardcover)
Cubicle 7 Entertainment, UK: One Ring 1 (2011 Box)
Cubicle 7 Entertainment, UK: One Ring 1 (2014 Hardcover)
Cubicle 7 Entertainment, UK: One Ring 1 (2011 Box)
| Only War 1 |
Only War
Fantasy Flight Games: Only War 1 (2012 Hardcover)
Fantasy Flight Games: Only War 1 (2012 Hardcover)
Only War Game Master's Kit
Fantasy Flight Games: Only War 1 (2012 )
Fantasy Flight Games: Only War 1 (2012 )
| Open Core 1 |
Open Core Core Rules
Battlefield Press: Open Core 1 (2005 )
Battlefield Press: Open Core 1 (2005 )
| OpenQuest 1 |
OpenQuest
D101 Games: OpenQuest 1 (2009 )
D101 Games: OpenQuest 1 (2009 eBook)
D101 Games: OpenQuest 1 (2010 )
D101 Games: OpenQuest 1 (2010 )
D101 Games: OpenQuest 1 (2009 )
D101 Games: OpenQuest 1 (2009 eBook)
D101 Games: OpenQuest 1 (2010 )
D101 Games: OpenQuest 1 (2010 )
| OpenQuest 2 |
OpenQuest 2nd Edition Deluxe
D101 Games: OpenQuest 2 (2013 )
D101 Games: OpenQuest 2 (2013 )
OpenQuest Basic Edition
D101 Games: OpenQuest 2 (2014 Digest)
D101 Games: OpenQuest 2 (2014 Digest)
| Orbit 1 |
Orbit
6-0 Games: Orbit 1 (1998 )
6-0 Games: Orbit 1 (1998 )
| ORC 1 |
ORC Combat Cards: Street Combat Set
Vajra Enterprises: ORC 1 (2004 PDF)
Vajra Enterprises: ORC 1 (2004 PDF)
| Orkworld 1 |
Orkworld
Wicked Press: Orkworld 1 (2000 )
Wicked Press: Orkworld 1 (2000 )
| ORX 1 |
ORX: Nasty, Brutish & Short
Wild Hunt Studios: ORX 1 (2006 )
Wild Hunt Studios: ORX 1 (2006 )
| OSRIC |
| OSRIC 1 |
Old-School Magic
Vigilance Press: OSRIC 1 (2010 PDF)
Vigilance Press: OSRIC 1 (2010 PDF)
Olde School Monk
Mob United Media: OSRIC 1 (2006 PDF)
Mob United Media: OSRIC 1 (2006 PDF)
Olde School Swashbuckler
Mob United Media: OSRIC 1 (2006 PDF)
Mob United Media: OSRIC 1 (2006 PDF)
OSRIC Unearthed
Ronin Arts: OSRIC 1 (2007 )
Ronin Arts: OSRIC 1 (2007 )
| OSRIC 2 |
Old-School Psionics
Vigilance Press: OSRIC 2 (2010 PDF)
Vigilance Press: OSRIC 2 (2010 PDF)
OS1: Something Unholy Stirs
Sacrosanct Games: OSRIC 2 (2010 PDF)
Sacrosanct Games: OSRIC 2 (2010 PDF)
O.S.R.I.C. Second Edition
First Edition Society: O.S.R.I.C. Second Edition 2 (2009 )
First Edition Society: OSRIC 2 (2009 )
First Edition Society: OSRIC 2 (2009 Hardcover)
First Edition Society: OSRIC 2 (2009 Hardcover)
Self-published: OSRIC 2 (2008 PDF)
First Edition Society: O.S.R.I.C. Second Edition 2 (2009 )
First Edition Society: OSRIC 2 (2009 )
First Edition Society: OSRIC 2 (2009 Hardcover)
First Edition Society: OSRIC 2 (2009 Hardcover)
Self-published: OSRIC 2 (2008 PDF)
| OSRIC 2.2 |
O.S.R.I.C. Second Edition
Usherwood Publishing: OSRIC 2.2 (2011 Digest)
Black Blade Publishing: OSRIC 2.2 (2011 Hardcover)
Usherwood Publishing: OSRIC 2.2 (2011 Hardcover)
Black Blade Publishing: OSRIC 2.2 (2012 Hardcover)
Usherwood Publishing: OSRIC 2.2 (2012 Hardcover)
Usherwood Publishing: OSRIC 2.2 (2011 Digest)
Black Blade Publishing: OSRIC 2.2 (2011 Hardcover)
Usherwood Publishing: OSRIC 2.2 (2011 Hardcover)
Black Blade Publishing: OSRIC 2.2 (2012 Hardcover)
Usherwood Publishing: OSRIC 2.2 (2012 Hardcover)
| Other Dust 1 |
Other Dust
Sine Nomine Publishing: Other Dust 1 (2012 )
Sine Nomine Publishing: Other Dust 1 (2012 Hardcover)
Sine Nomine Publishing: Other Dust 1 (2012 )
Sine Nomine Publishing: Other Dust 1 (2012 Hardcover)
| Other Worlds 1 |
Other Worlds
Signal 13: Other Worlds 1 (2011 PDF)
Signal 13: Other Worlds 1 (2011 PDF)
| Out There 1 |
Out There
Indie Game Design Company #2: Out There 1 (2009 PDF)
Indie Game Design Company #2: Out There 1 (2009 PDF)
| Outbreak: Undead 1 |
Outbreak: Undead
Hunters Books and Apparel: Outbreak: Undead 1 (2010 Hardcover)
Hunters Books and Apparel: Outbreak: Undead 1 (2010 Hardcover)
| Outer Presence 1 |
The Outer Presence
Kort'thalis Publishing: Outer Presence 1 (2015 )
Kort'thalis Publishing: Outer Presence 1 (2015 )
Kort'thalis Publishing: Outer Presence 1 (2015 )
Kort'thalis Publishing: Outer Presence 1 (2015 )
| OVA 1 |
OVA: Open Versatile Anime Role-Playing Game
Wise Turtle: OVA 1 (2006 )
Wise Turtle: OVA 1 (2006 )
| OVA 2 |
OVA: The Anime Role-Playing Game
Wise Turtle: OVA 2 (2015 Digest)
Wise Turtle: OVA 2 (2015 Digest)
| Over the Edge 1 |
| Over the Edge 2 |
| Over the Edge 3 |
Over The Edge Dice Set
Atlas Games: Over the Edge 3 (2018 Pack)
Atlas Games: Over the Edge 3 (2018 Pack)
Over The Edge Dice Set
Atlas Games: Over the Edge 3 (2019 Pack)
Atlas Games: Over the Edge 3 (2019 Pack)
| Overlight 1 |
Overlight
Renegade Game Studios: Overlight 1 (2018 Hardcover)
Renegade Game Studios: Overlight 1 (2018 Hardcover)
| Paranoia 1 |
Orcbusters
West End Games: Paranoia 1 (1986 )
West End Games: Paranoia 1 (1986 )
| Pathfinder 1 |
The Oakling Player Character Race
Alluria Publishing: Pathfinder 1 (2009 PDF)
Alluria Publishing: Pathfinder 1 (2009 PDF)
Oathbound Seven
Epidemic Books: Pathfinder 1 (2011 Hardcover)
Epidemic Books: Pathfinder 1 (2011 Hardcover)
Epidemic Books: Pathfinder 1 (2011 Hardcover)
Epidemic Books: Pathfinder 1 (2011 Hardcover)
The Obitu Player Character Race
Alluria Publishing: Pathfinder 1 (2009 PDF)
Alluria Publishing: Pathfinder 1 (2009 PDF)
Obsidian Twilight Campaign Setting
LPJ Design: Pathfinder 1 (2010 PDF)
LPJ Design: Pathfinder 1 (2010 PDF)
Occult Adventures
Paizo Publishing: Pathfinder 1 (2015 Hardcover)
Paizo Publishing: Pathfinder 1 (2015 Hardcover)
Occult Mysteries
Paizo Publishing: Pathfinder 1 (2014 )
Paizo Publishing: Pathfinder 1 (2014 )
One on One Adventures Compendium
Expeditious Retreat Press: Pathfinder 1 (2009 PDF)
Expeditious Retreat Press: Pathfinder 1 (2009 PDF)
ONS4: Dread Saecaroth Pathfinder Edition
Frog God Games: Pathfinder 1 (2012 )
Frog God Games: Pathfinder 1 (2012 )
Additional Oracle Curses
Super Genius Games: Pathfinder 1 (2010 PDF)
OtherWorld Creations: Pathfinder 1 (2010 PDF)
Super Genius Games: Pathfinder 1 (2010 PDF)
OtherWorld Creations: Pathfinder 1 (2010 PDF)
| Perfect Blue |
Operation: Perfect Blue
Cutter's Guild Games: Perfect Blue (2002 )
Cutter's Guild Games: Perfect Blue (2002 )
| Phoenix Command 1 |
Operation Seven Swords
Leading Edge Games: Phoenix Command 1 (1987 )
Leading Edge Games: Phoenix Command 1 (1987 )
| Reign 1 |
Out of the Violent Planet
Self-published: Reign 1 (2011 PDF)
Self-published: Reign 1 (2011 PDF)
| Rolemaster 2.5 |
The Orgillion Horror
I.C.E.: Rolemaster 2.5 (1989 )
I.C.E.: Rolemaster 2.5 (1989 )
Outlaw
I.C.E.: Rolemaster 2.5 (1991 )
I.C.E.: Rolemaster 2.5 (1991 )
| RuneQuest / Mongoose 1 |
Outpost Qether
OtherWorld Creations: RuneQuest / Mongoose 1 (2006 PDF)
OtherWorld Creations: RuneQuest / Mongoose 1 (2006 PDF)
| Rus 1 |
The Orbas Lode
Rus Games, Australia: Rus 1 (1991 )
Rus Games, Australia: Rus 1 (1991 )
| Savage Worlds |
| Savage Worlds 1 |
Olympian Breed Act One: A Gathering of Heroes
Palewolf Publishing: Savage Worlds 1 (2012 PDF)
Palewolf Publishing: Savage Worlds 1 (2012 PDF)
On the Rocks
Pinnacle: Savage Worlds 1 (2003 PDF)
Pinnacle: Savage Worlds 1 (2003 PDF)
| Savage Worlds 2 |
Of Gods and Men
Triple Ace Games: Savage Worlds 2 (2010 PDF)
Triple Ace Games: Savage Worlds 2 (2010 PDF)
The Old Absinthe House Blues
Pinnacle: Savage Worlds 2 (2013 PDF)
Pinnacle: Savage Worlds 2 (2013 PDF)
Opener of the Ways
Triple Ace Games: Savage Worlds 2 (2010 PDF)
Triple Ace Games: Savage Worlds 2 (2010 PDF)
Orcmark
Triple Ace Games: Savage Worlds 2 (2010 PDF)
Triple Ace Games: Savage Worlds 2 (2010 PDF)
Ostmark
Triple Ace Games: Savage Worlds 2 (2010 PDF)
Triple Ace Games: Savage Worlds 2 (2010 PDF)
Outbreak at Hopewell
Daring Entertainment: Savage Worlds 2 (2010 PDF)
Daring Entertainment: Savage Worlds 2 (2010 PDF)
| Serenity 1 |
Out in the Black
Margaret Weis Productions: Serenity 1 (2006 )
Margaret Weis Productions: Serenity 1 (2006 )
| Shadowrun 2 |
One Stage Before
FASA Corporation: Shadowrun 2 (1992 )
FASA Corporation: Shadowrun 2 (1992 )
| Shadowrun 4 |
On The Run
FanPro: Shadowrun 4 (2006 )
FanPro: Shadowrun 4 (2006 )
| Sorcery & Super Science! 1 |
Objects Below the Shattered Moon: Volume 1
Expeditious Retreat Press: Sorcery & Super Science! 1 (2010 PDF)
Expeditious Retreat Press: Sorcery & Super Science! 1 (2010 PDF)
Objects Below the Shattered Moon: Volume 2
Expeditious Retreat Press: Sorcery & Super Science! 1 (2010 PDF)
Expeditious Retreat Press: Sorcery & Super Science! 1 (2010 PDF)
Objects Below the Shattered Moon: Volume 3
Expeditious Retreat Press: Sorcery & Super Science! 1 (2011 PDF)
Expeditious Retreat Press: Sorcery & Super Science! 1 (2011 PDF)
| Sovereign Stone 1 |
Old Vinnengael: City of Sorrows
Corsair Publishing: Sovereign Stone 1 (2000 )
Corsair Publishing: Sovereign Stone 1 (2000 )
| Space Master 2 |
Outlaw
I.C.E.: Space Master 2 (1991 )
I.C.E.: Space Master 2 (1991 )
| Space Opera 1 |
Operation Peregrine
Fantasy Games Unlimited: Space Opera 1 (1983 )
Fantasy Games Unlimited: Space Opera 1 (1983 )
The Outworlds: A Starsector Atlas
Fantasy Games Unlimited: Space Opera 1 (1986 )
Fantasy Games Unlimited: Space Opera 1 (1986 )
| Spookshow |
Outside Standard Channels
Clockworks: Spookshow (1999 )
Clockworks: Spookshow (1999 )
| Spycraft 2 |
Origin of the Species: Classic Fantasy
Crafty Games: Spycraft 2 (2008 PDF)
Crafty Games: Spycraft 2 (2008 PDF)
Origin of the Species: Light of Olympus
Crafty Games: Spycraft 2 (2007 PDF)
Crafty Games: Spycraft 2 (2007 PDF)
Origin of the Species: Transmechs
Crafty Games: Spycraft 2 (2009 PDF)
Crafty Games: Spycraft 2 (2009 PDF)
| Star Trek 1 |
Orion Ruse
FASA Corporation: Star Trek 1 (1984 )
FASA Corporation: Star Trek 1 (1984 )
| Star Trek 2 |
Old Soldiers Never Die
FASA Corporation: Star Trek 2 (1986 )
FASA Corporation: Star Trek 2 (1986 )
The Orions
FASA Corporation: Star Trek 2 (1987 )
FASA Corporation: Star Trek 2 (1987 )
The Outcasts
FASA Corporation: Star Trek 2 (1985 )
FASA Corporation: Star Trek 2 (1985 )
| Star Trek 2d20 1 |
The Operations Division
Modiphius Entertainment: Star Trek 2d20 1 (2018 Hardcover)
Modiphius Entertainment: Star Trek 2d20 1 (2018 Hardcover)
| Star Wars d6 1 |
Otherspace
West End Games: Star Wars d6 1 (1989 )
West End Games: Star Wars d6 1 (1989 )
Otherspace II: Invasion
West End Games: Star Wars d6 1 (1989 )
West End Games: Star Wars d6 1 (1989 )
| Star Wars d6 2 |
Operation: Elrood
West End Games: Star Wars d6 2 (1996 )
West End Games: Star Wars d6 2 (1996 )
| StarCluster / Starpool 2.5 |
On Her Majesty's Arcane Service
Flying Mice: StarCluster / Starpool 2.5 (2009 )
Flying Mice: StarCluster / Starpool 2.5 (2009 )
| StarCluster / Starpool 3 |
Outremer
Flying Mice: StarCluster / Starpool 3 (2011 )
Flying Mice: StarCluster / Starpool 3 (2011 )
| Starquest 1 |
Outer-Rim System
New Dimension Games: Starquest 1 (2005 )
New Dimension Games: Starquest 1 (2005 )
| Stormbringer 2 |
The Octagon of Chaos
Theatre of the Mind Enterprises: Stormbringer 2 (1986 )
Theatre of the Mind Enterprises: Stormbringer 2 (1986 )
| Storyteller System: World of Darkness 1 |
Outcasts: A Players Guide to Pariahs
White Wolf Publishing: Storyteller System: World of Darkness 1 (1995 )
White Wolf Publishing: Storyteller System: World of Darkness 1 (1995 )
| Storyteller System: World of Darkness 3 |
The Orphan-Grinders
White Wolf Publishing: Storyteller System: World of Darkness 3 (2004 )
White Wolf Publishing: Storyteller System: World of Darkness 3 (2004 )
Orpheus
White Wolf Publishing: Storyteller System: World of Darkness 3 (2003 Hardcover)
White Wolf Publishing: Storyteller System: World of Darkness 3 (2003 Hardcover)
| Storytelling System: Scion 1 |
Of Shadows Yet to Come
White Wolf Publishing: Storytelling System: Scion 1 (2007 )
White Wolf Publishing: Storytelling System: Scion 1 (2007 )
| SuperBabes 1 |
One Night Stands: "The Orlando Adventures"
Tri-City Games: SuperBabes 1 (1994 )
Tri-City Games: SuperBabes 1 (1994 )
| Swords & Wizardry 1 |
ONS4: Dread Saecaroth Swords & Wizardry Edition
Frog God Games: Swords & Wizardry 1 (2012 )
Frog God Games: Swords & Wizardry 1 (2012 )
| Symbaroum 1 |
On the Nature of Davokar
Järnringen: Symbaroum 1 (2015 PDF)
Järnringen: Symbaroum 1 (2015 PDF)
| Terror Network 1 |
| The Fantasy Trip 2 |
Orb Quest
Metagaming: The Fantasy Trip 2 (1982 )
Metagaming: The Fantasy Trip 2 (1982 )
| The Riddle of Steel 1 |
Of Beasts and Men
Driftwood Publishing: The Riddle of Steel 1 (2003 )
Driftwood Publishing: The Riddle of Steel 1 (2003 )
| The Strange 1 |
Ohunkakan: The Living Myths
Monte Cook Games: The Strange 1 (2015 PDF)
Monte Cook Games: The Strange 1 (2015 PDF)
| Torg 1 |
Operation: Hard Sell
West End Games: Torg 1 (1991 )
West End Games: Torg 1 (1991 )
Orrorsh
West End Games: Torg 1 (1991 )
West End Games: Torg 1 (1991 )
| Trail of Cthulhu 1 |
Out of Space
Pelgrane Press: Trail of Cthulhu 1 (2013 )
Pelgrane Press: Trail of Cthulhu 1 (2013 )
Out of the Woods
Pelgrane Press: Trail of Cthulhu 1 (2017 )
Pelgrane Press: Trail of Cthulhu 1 (2017 )
Out of Time
Pelgrane Press: Trail of Cthulhu 1 (2011 )
Pelgrane Press: Trail of Cthulhu 1 (2011 )
| Traveller 1 |
| Traveller / Mongoose 1 |
One Crowded Hour
Comstar Games: Traveller / Mongoose 1 (2008 PDF)
Avenger Enterprises: Traveller / Mongoose 1 (2008 PDF)
Mongoose Publishing: Traveller / Mongoose 1 (2008 PDF)
Comstar Games: Traveller / Mongoose 1 (2008 PDF)
Avenger Enterprises: Traveller / Mongoose 1 (2008 PDF)
Mongoose Publishing: Traveller / Mongoose 1 (2008 PDF)
One-Act Adventure: Vengeance by Proxy
Samardan Press: Traveller / Mongoose 1 (2009 )
Samardan Press: Traveller / Mongoose 1 (2009 )
Outpost Mars
Zozer Games: Traveller / Mongoose 1 (2012 )
Zozer Games: Traveller / Mongoose 1 (2012 )
| Traveller: 2300 2 |
Operation Overlord
3W: Traveller: 2300 2 (1989 )
3W: Traveller: 2300 2 (1989 )
| Tunnels & Trolls 4 |
Overkill
Flying Buffalo: Tunnels & Trolls 4 (1977 )
Flying Buffalo: Tunnels & Trolls 4 (1977 )
| Tunnels & Trolls 5 |
| Tunnels & Trolls 7.5 |
One of Those Nights
Lone Delver Games: Tunnels & Trolls 7.5 (2010 PDF)
Lone Delver Games: Tunnels & Trolls 7.5 (2010 PDF)
| Twilight: 2000 2 |
Operation Crouching Dragon
GDW: Twilight: 2000 2 (1992 )
GDW: Twilight: 2000 2 (1992 )
| Unisystem |
| Unisystem 2 |
Odyssey Prime
Misfit Studios: Unisystem 2 (2006 PDF)
Eden Studios: Unisystem 2 (2006 PDF)
Misfit Studios: Unisystem 2 (2010 Hardcover)
Eden Studios: Unisystem 2 (2010 Hardcover)
Misfit Studios: Unisystem 2 (2010 )
Eden Studios: Unisystem 2 (2010 )
Misfit Studios: Unisystem 2 (2006 PDF)
Eden Studios: Unisystem 2 (2006 PDF)
Misfit Studios: Unisystem 2 (2010 Hardcover)
Eden Studios: Unisystem 2 (2010 Hardcover)
Misfit Studios: Unisystem 2 (2010 )
Eden Studios: Unisystem 2 (2010 )
Odyssey Prime: Southern Discomfort
Misfit Studios: Unisystem 2 (2006 PDF)
Misfit Studios: Unisystem 2 (2010 )
Eden Studios: Unisystem 2 (2010 )
Misfit Studios: Unisystem 2 (2006 PDF)
Misfit Studios: Unisystem 2 (2010 )
Eden Studios: Unisystem 2 (2010 )
| Unknown Armies 1 |
| Vampire: The Requiem 1 |
| Villains and Vigilantes 2 |
Opponents Unlimited
Fantasy Games Unlimited: Villains and Vigilantes 2 (1982 )
Fantasy Games Unlimited: Villains and Vigilantes 2 (1982 )
Organized Crimes
Fantasy Games Unlimited: Villains and Vigilantes 2 (1985 )
Fantasy Games Unlimited: Villains and Vigilantes 2 (1985 )
| Villains and Vigilantes 2.1 |
Oil Pressure
Monkey House Games: Villains and Vigilantes 2.1 (2010 PDF)
Monkey House Games: Villains and Vigilantes 2.1 (2010 PDF)
| Warhammer Fantasy Roleplay 2 |
Old World Armoury
Black Industries, UK: Warhammer Fantasy Roleplay 2 (2005 Hardcover)
Black Industries, UK: Warhammer Fantasy Roleplay 2 (2005 Hardcover)
Old World Bestiary
Black Industries, UK: Warhammer Fantasy Roleplay 2 (2005 Hardcover)
Black Industries, UK: Warhammer Fantasy Roleplay 2 (2005 Hardcover)
| Warhammer Fantasy Roleplay 3 |
Omens of War
Fantasy Flight Games: Warhammer Fantasy Roleplay 3 (2011 Box)
Fantasy Flight Games: Warhammer Fantasy Roleplay 3 (2011 Box)
Omens of War: Advanced Combat and Warriors
Fantasy Flight Games: Warhammer Fantasy Roleplay 3 (2011 PDF)
Fantasy Flight Games: Warhammer Fantasy Roleplay 3 (2011 PDF)
| Witch Hunter 1 |
On Silver Wings
Paradigm Concepts: Witch Hunter 1 (2010 )
Paradigm Concepts: Witch Hunter 1 (2010 )
Orders of Solomon
Paradigm Concepts: Witch Hunter 1 (2010 )
Paradigm Concepts: Witch Hunter 1 (2010 )
| Year Zero 1 |
Our Friends the Machines & Other Mysteries
Free League Publishing, UK: Year Zero 1 (2018 Hardcover)
Free League Publishing, UK: Year Zero 1 (2018 Hardcover)
| Ysgarth 4 |
The Old Powers
Ragnarok Enterprises: Ysgarth 4 (1984 Digest)
Ragnarok Enterprises: Ysgarth 4 (1984 Digest)
Index letter Series Search: O (79 results)
| AD&D1 Hardcovers (Orange Spines) | TSR Twenty-First Century Games | AD&D 1 |
| Advanced Options | OtherWorld Creations Super Genius Games | Pathfinder 1 |
| Adventure Keep City Series | AEG | d20 3 |
| Adventure Keep Tirna'gael Series | AEG | d20 3 |
| Amazing Stories of World War II, Battlescenes | Vigilance Press | Icons 1 |
| B/X Essentials | Necrotic Gnome | Old-School Essentials 1-2 |
| Blood Games Series | Flying Mice | StarCluster 2 StarCluster / Starpool 2.5-3 |
| Blueprints (0one's) | 0one Games | Generic 1 |
| Clan Brujah Trilogy | White Wolf Publishing | Fiction |
| Countdown | OtherWorld Creations | d20 Modern 1 |
| D&D Iconic Character Novels | Wizards of the Coast | Fiction |
| d20 Shakespeare | LPJ Design | d20 3.5 |
| d20 System Master Kit | Adamant Entertainment | Pathfinder 1 d20 3.5 d20 Modern 1 |
| Darwin\'s World Gen Con 2005 Adventures | RPGObjects | d20 Modern 1 |
| Divine Favor | Open Design | Pathfinder 1 |
| DMGR Dungeon Master Guide Rules Supplements | TSR | AD&D 2 |
| Dungeon Crawl Classics / DCC | Goodman Games | Dungeon Crawl Classics 1 |
| Dungeon Crawl Classics Holiday Modules | Goodman Games | Dungeon Crawl Classics 1 |
| Eberron: The War-Torn Series | Wizards of the Coast | Fiction |
| First Edition Fantasy Supplements | Ronin Arts | OSRIC 1 |
| Forgotten Realms: Double Diamond Triangle Saga | TSR | Fiction |
| Forgotten Realms: The Citadels | Wizards of the Coast | Fiction |
| Forgotten Realms: Transitions | Wizards of the Coast | Fiction |
| Free RPG Day 2009: PDF Adjunct | Alea Publishing Group Rite Publishing | Arcana Evolved 1 Dungeons & Dragons 4 Generic 1 |
| Genre Books | I.C.E. | Rolemaster 2.5 Space Master 2 |
| Hellfrost Region Guides | Triple Ace Games | Savage Worlds 2 |
| Houses of Hermes | Atlas Games Lion Rampant Wizards of the Coast | Ars Magica 2-5 |
| Instant Adventures Series I | Fantasy Flight Games | d20 3 |
| Items of Power | Fast Forward Entertainment | d20 3 |
| Mage Tradition Books | White Wolf Publishing | Mage: The Ascension 1-3 |
| MicroQuests | Metagaming | The Fantasy Trip 1-2 |
| Mongoose Living Traveller | Mongoose Publishing | Traveller / Mongoose 1 |
| Mythoard April 2015 | Various Publishers | Various Systems |
| Mythoard February 2015 | Various Publishers | D&D / OSR 1 Generic 1 TSRS 1 |
| O (One-On-One) Modules | Metro Detroit Gamers TSR | D&D / Basic 2 D&D / Original 1 |
| OA (Oriental Adventures) Adventures | TSR | AD&D 1-2 |
| Objects Below the Shattered Moon | Expeditious Retreat Press | Sorcery & Super Science! 1 |
| Odyssey Prime | Eden Studios Misfit Studios | Unisystem 2 d20 Modern 1 |
| OGL Barbarian | Misfit Studios | d20 3.5 |
| OGL Genre Books | Mongoose Publishing | Various Systems |
| Olde School Arcana | Mob United Media | OSRIC 1 |
| One Night Stands (SuperBabes) | Tri-City Games | SuperBabes 1 |
| One Night Stands Series (Frog God) | Frog God Games Mythmere Games | Pathfinder 1 Swords & Wizardry 1 |
| One-Shots | 6d6Fireball.com | 6d6 Core 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 |
| Orpheus | White Wolf Publishing | Storyteller System: World of Darkness 3 |
| Pathfinder Campaign Setting: Organizations | Paizo Publishing | Pathfinder 1 |
| Pathfinder Player Companion: Places of Golarion | Paizo Publishing | Pathfinder 1 d20 3.5 |
| Pathfinder Player Companion: Races of Golarion | Paizo Publishing | Pathfinder 1 d20 3.5 |
| Pathfinder Society Scenarios: Season 0 | Paizo Publishing | d20 3.5 |
| Penumbra | Atlas Games | d20 3-3.5 |
| Pulp Dungeons Series 1: Just Above the Pit | Destination Games | Generic 1 |
| Pulp Dungeons Series 2: The Elements of Terror | Destination Games | Generic 1 |
| Reign Supplements | Self-published | Reign 1 |
| Remarkable Races (Pathway to Adventure) | Alluria Publishing | Dungeons & Dragons 4 Pathfinder 1 |
| Sartar Rising | Issaries | Hero Wars 1 HeroQuest 1 |
| Savage Tales | Pinnacle SmiteWorks | Savage Worlds 1-2 |
| Solo Adventures | Chris Harvey Corgi Books Flying Buffalo Strategy Games Limited | Tunnels & Trolls 2-6 |
| Space Opera Star Sector Atlases | Fantasy Games Unlimited | Space Opera 1 |
| Spycraft Declassified | Crafty Games Mongoose Publishing | Spycraft 2 |
| Tales of the North | Black Wyvern Press | Labyrinth Lord 2 OSRIC 2 |
| The Abyssal Plague Trilogy | Wizards of the Coast | Fiction |
| The Future Soldier | SteamPower Publishing | d20 Modern 1 |
| The Order of the Stick | Giant in the Playground | Fiction |
| The Prism Pentad | TSR Wizards of the Coast | Fiction |
| The Realm of Nippon Tech (Torg) | West End Games | Torg 1 |
| The Realm of Orrorsh (Torg) | West End Games | Torg 1 |
| The Realm of the Living Land (Torg) | West End Games | Torg 1 |
| Traveller: The New Era: Operation Dominoes | Avenger Enterprises Comstar Media | Generic 1 |
| Tribe of One | TSR | Fiction |
| Tribes | Raging Swan Press | Pathfinder 1 |
| Vampire: The Requiem Covenant Guides | White Wolf Publishing | Vampire: The Requiem 1 |
| War of the Burning Sky Campaign Saga #1 to 12 | EN Publishing | Dungeons & Dragons 4 d20 3.5 |
| Warhammer Advanced Role Books | Fantasy Flight Games | Warhammer Fantasy Roleplay 3 |
| Wicked Fantasy | John Wick Presents | Pathfinder 1 |