List of role-playing game designers

This is a list of individuals who have designed one or more role-playing games, including live-action role-playing games but excluding role-playing video games (see List of video game industry people and its children for video game creators). Artists are listed separately on the annotated List of role-playing game artists. Publishing companies are listed under List of role-playing game publishers. Individual games are listed under List of tabletop role-playing games.

The design of role-playing games may include the creation of game systems, game settings and scenarios for roleplaying; game designers engage in one or more of these activities as they create, revise and develop roleplaying games. For each designer, this list includes a few representative games, game lines or publications that the designer in question has created or co-authored or where they are credited with a significant contribution.

A

 * Justin Achilli - Vampire: The Dark Ages, Victorian Age: Vampire, Vampire: The Requiem; co-creator of Exalted
 * Mark Acres - Chill; Gangbusters
 * Peter Adkison - The Primal Order
 * Avery Alder - The Quiet Year, Dream Askew, Monsterhearts
 * Justin Alexander - Infinity, Magical Kitties Save the Day, contributions to Feng Shui, Unknown Armies
 * Aaron Allston - Autoduel Champions, Ghostbusters International; co-author of Champions 5th edition; contributions to Mystara, including the Hollow World Campaign Set
 * Dave Allsop - SLA Industries
 * Terry Amthor - Shadow World; co-author of Space Master
 * Bryan Ansell - Warhammer Fantasy Roleplay; contributions to Call of Cthulhu
 * Sandy Antunes - Rules to Live By (LARP), A Faery's Tale
 * Dave Arneson - co-creator of Dungeons & Dragons (with Gary Gygax); creator of Blackmoor; co-author of Adventures in Blackmoor and Temple of the Frog

B

 * L. Ross Babcock III - co-creator of the BattleTech setting
 * Wilf K. Backhaus - co-author of Chivalry & Sorcery
 * D. Vincent Baker - Dogs in the Vineyard, Apocalypse World 
 * Keith Baker - Eberron; contributions to Feng Shui and various d20 System publications
 * Meguey Baker - Apocalypse World, 1001 Nights, a game of enticing stories, Psi-Run, Valiant Girls
 * Richard Baker - Alternity, Star Drive, Gamma World (7th edition)
 * Jim Bambra - co-author of Warhammer Fantasy Roleplay
 * Cam Banks - co-author of Leverage: The Roleplaying Game and Marvel Heroic Roleplaying; contributions to the Dragonlance setting
 * Jeff Barber - Killer Crosshairs; co-creator of Blue Planet
 * M. A. R. Barker - Tékumel, Empire of the Petal Throne
 * Kevin Barrett - co-author of Space Master
 * Wolfgang Baur - co-creator of Dark•Matter; contributions to various TSR settings
 * Greg Benage - co-creator of Blue Planet
 * Chris Birch - co-author of Starblazer Adventures, Legends of Anglerre
 * Jolly Blackburn - co-designer of HackMaster and Aces & Eights: Shattered Frontier
 * Jason L Blair - Little Fears
 * Loyd Blankenship - GURPS Cyberpunk
 * Bob Bledsaw - City State of the Invincible Overlord; Wilderlands of High Fantasy
 * Anders Blixt - Drakar och Demoner 2nd edition
 * Brian Blume - Boot Hill
 * Emily Care Boss - Breaking the Ice, Under My Skin, Playing With Intent LARP; co-creator of Bubblegumshoe
 * Eric L. Boyd - contributions to the Forgotten Realms setting, including Faiths & Avatars and Faiths and Pantheons
 * Rob Boyle - Shadowrun 4th Edition, Eclipse Phase
 * Mike Breault - contributions to various TSR settings
 * James Herbert Brennan - Man, Myth & Magic; Timeship
 * Bill Bridges - Werewolf: The Apocalypse, Mage: The Ascension, Mage: The Awakening, Promethean: The Created, Passion Play LARP; co-creator of Fading Suns
 * Anne Brown - contributions to various TSR settings
 * Timothy Brown - 2300 AD; co-author of Dark Sun
 * Phil Brucato - Mage: The Sorcerers Crusade, Deliria: Faerie Tales for a New Millennium; contributions to Werewolf: The Apocalypse and Mage: The Ascension
 * Jason Bulmahn - Pathfinder Roleplaying Game

C

 * Peter Cakebread - co-author of Dark Streets
 * James Cambias - Star Hero
 * Brian Campbell - contributions to various World of Darkness settings
 * C.J. Carella - WitchCraft, Armageddon: The End Times, Buffy, Angel, Unisystem
 * Jason Carl - contributions to the Forgotten Realms setting and the Mind's Eye Theatre LARP
 * Mike Carr - In Search of the Unknown; contributions to Advanced Dungeons & Dragons
 * Michele Carter - contributed to development of Dungeons and Dragons 4th Edition
 * Marcelo Cassaro - Street Fighter RPG Brazil; 3D&T
 * Frank Chadwick - Twilight: 2000, 2300 AD, Space: 1889, Dark Conspiracy
 * Jamie Chambers - creator of the Cortex System for the Serenity Role Playing Game
 * Banana Chan - co-designer of Jiangshi: Blood in the Banquet Hall
 * Coleman Charlton - Rolemaster, MERP
 * Bob Charrette - co-author of Bushido, Aftermath!, Daredevils, Shadowrun
 * David Chart - Ars Magica 5th edition
 * Davis Chenault - co-designer of Castles & Crusades
 * Stephen Chenault - co-designer of Castles & Crusades
 * Mike Chinn - contributions to Legends of Anglerre
 * Troy Christensen - Advanced Phantasm Adventures
 * Deborah Teramis Christian - contributions to various TSR settings
 * Sam Chupp - co-creator of Wraith: the Oblivion and Changeling: The Dreaming
 * Ken Cliffe - Ars Magica 3rd edition; World of Darkness 2004 edition; co-creator of Trinity and Hunter: The Reckoning
 * Bill Coffin - Systems Failure, Septimus
 * Genevieve Cogman - contributions to In Nomine, Exalted; co-authored Orpheus
 * Andy Collins - Dungeons & Dragons 4th edition
 * William W. Connors - contributions to Dungeons & Dragons 2nd edition and the Ravenloft campaign setting
 * David "Zeb" Cook - Dwellers of the Forbidden City, Slave Pits of the Undercity, Amazing Engine system, Advanced Dungeons & Dragons 2nd edition
 * Monte Cook - Ptolus, Numenera; co-creator of Dungeons & Dragons 3rd edition,
 * Sue Weinlein Cook - SAGA System
 * Bruce Cordell - many Dungeons & Dragons supplements, notably Return to the Tomb of Horrors and the Expanded Psionics Handbook
 * Steven Cordovano - The Compleat Alchemist
 * Peter Corless - contributions to Pendragon
 * Greg Costikyan - creator of Star Wars: The Roleplaying Game and Violence; co-creator of Toon and Paranoia
 * Jeremy Crawford - co-designer of Blue Rose; lead game designer for Dungeons & Dragons 4th edition
 * Croc - In Nomine Satanis/Magna Veritas, Stella Inquisitorus
 * N. Robin Crossby - Hârn, HarnMaster
 * John H. Crowe III - contributions to Call of Cthulhu
 * Paul Czege - My Life with Master

D

 * Tom Dalgliesh - co-author of the Pilots' Almanac for HârnMaster
 * Ryan Dancey - co-author of the Hero Builder's Guidebook; conceived and developed the Open Game License concept
 * Liz Danforth - Tunnels & Trolls, fifth and subsequent editions
 * Richard Dansky - various World of Darkness settings
 * Peter Darvill-Evans - co-creator of Time Lord; several Fighting Fantasy books
 * Graeme Davis - Warhammer Fantasy Roleplay, Mind's Eye Theatre LARP
 * Jesse Decker - contributions to Dungeons & Dragons 4th edition
 * Tim Dedopulos - contributions to Unknown Armies and Hunter: The Reckoning
 * Jeff Dee - Villains and Vigilantes
 * Marcelo Del Debbio - Arkanun, Trevas, RPGQuest (Brazilian RPGs)
 * Troy Denning - Chill 2nd edition; co-author of Dark Sun
 * James "Grim" Desborough - Gor role-playing game; contributions to Dungeons & Dragons 3.5 edition
 * Dennis Detwiller - co-author of Delta Green, Godlike and Nemesis
 * Joe Dever - Lone Wolf, Greystar, Freeway Warrior
 * Larry DiTillio - Masks of Nyarlathotep
 * Kevin Dockery - The Morrow Project
 * Michael Dobson - contributions to various TSR settings
 * Rob Donoghue - co-author of Leverage: The Roleplaying Game, Marvel Heroic Roleplaying and Spirit of the Century
 * Dale Donovan - contributions to Dungeons & Dragons
 * Tom Dowd - Mind's Eye Theatre LARP, co-author of Shadowrun, contributions to the Storyteller system
 * Ann Dupuis - contributions to GURPS and Fudge

E

 * Ron Edwards - creator of Sorcerer RPG, ELFS, Trollbabe, It Was a Mutual Decision, Spione - Story Now in Cold War Berlin, S/Lay w/me
 * Skaff Elias - co-author of the Miniatures Handbook
 * Rose Estes - creator of Endless Quest

F

 * Sean Patrick Fannon - creator of Shaintar setting for Savage Worlds; The Fantasy Roleplaying Gamer's Bible
 * Bill Fawcett - Role Aids game supplement line
 * Raymond E. Feist - Tulan of the Isles; Jonril: Gateway to the Sunken Lands
 * Pete Fenlon - contributions to Middle-earth Role Playing; Rolemaster; Shadow World
 * Nigel Findley - Greyspace, GURPS Illuminati; contributions to Shadowrun
 * Matt Forbeck - Deadlands; Brave New World
 * John M. Ford - GURPS Time Travel; The Yellow Clearance Black Box Blues and other contributions to Paranoia
 * Joe D. Fugate, Sr. - Traveller Book 8: Robots

G

 * Mark Galeotti - Mythic Russia, The Unspoken Word
 * Phil Gallagher - co-author of Warhammer Fantasy Roleplay; contributions to Dungeons & Dragons modules
 * Jose Garcia - Nexus: The Infinite City
 * Richard Garfinkle - Spellcrafter
 * Marc Gascoigne - Judge Dredd: The Role-Playing Game, Advanced Fighting Fantasy gamebooks
 * Dan Gelber - co-creator of Paranoia and Marvel Universe Roleplaying Game
 * Ajit George - Journeys through the Radiant Citadel
 * Adam Scott Glancy - co-creator of Delta Green
 * Lee Gold - Lands of Adventure, GURPS Japan
 * Eric Goldberg - Commando, DragonQuest; co-creator of Paranoia
 * Joseph Goodman - Dungeon Crawl Classics, Dungeon Crawl Classics Role Playing Game
 * Greg Gorden - DC Heroes, Earthdawn; co-author of TORG; contributions to Star Wars: The Roleplaying Game
 * Geoffrey C. Grabowski - Exalted 3rd edition; contributions to Everway and Kindred of the East
 * Andrew Greenberg - Vampire: The Masquerade developer; co-creator of Fading Suns; creator of Rapture: The Second Coming
 * Daniel Greenberg - contributions to Vampire: The Masquerade and Werewolf: The Apocalypse
 * Ed Greenwood - Forgotten Realms
 * Ray Greer - co-designer of the Fuzion system
 * Jeff Grubb - Marvel Super Heroes, Manual of the Planes, Spelljammer, d20 Modern; contributions to the Dragonlance and Forgotten Realms settings
 * Gary Gygax - co-creator of Dungeons & Dragons (with Dave Arneson); creator of Queen of the Spiders, Tomb of Horrors, and Greyhawk; designer of Dangerous Journeys and Lejendary Adventure

H

 * Richard Halliwell - Warhammer Fantasy Roleplay
 * Lee Hammock - Farscape role-playing game; Dawning Star
 * Gabrielle Harbowy - adventures for Dungeons & Dragons and Pathfinder Roleplaying Game
 * David A. Hargrave - Arduin, Star Rovers
 * Scott Haring - Empires of the Sands and The Republic of Darokin for TSR
 * John Harshman - co-creator of Traveller
 * Jess Hartley - contributions to World of Darkness, notably Changeling: The Lost
 * Robert Hatch - Kindred of the East; co-creator of Trinity, Aberrant, and Exalted
 * Andria Hayday - Darklords; contributions to various TSR settings
 * Bruce Heard - The Tree of Life; Into the Maelstrom; co-authored Dragons of Faith
 * Jess Heinig - Mage: The Ascension; Hunter: The Reckoning
 * Rob Heinsoo - Dungeons & Dragons 4th edition; co-creator of 13th Age
 * Steve Henderson - Worlds of Wonder, Balastor's Barracks; co-author of RuneQuest and Superworld
 * Shane Lacy Hensley - Deadlands, Savage Worlds
 * Dale "Slade" Henson - Buck Rogers XXVC
 * Keith Herber - The Fungi from Yuggoth, Trail of Tsathogghua, Spawn of Azathoth and other contributions to Call of Cthulhu
 * Jack Herman - co-creator of Villains & Vigilantes
 * Sterling Hershey - contributions to the Star Wars Roleplaying Game; Monster Manual V; Monster Vault
 * Tracy Hickman - Dragonlance, Ravenloft
 * Fred Hicks - Don't Rest Your Head; co-author of Spirit of the Century
 * Will Hindmarch - Kindred of the Ebony Kingdom, Vampire: The Requiem; co-author of Eternal Lies
 * Kenneth Hite - GURPS Infinite Worlds, Trail of Cthulhu, Night's Black Agents, Vampire: the Masquerade 5th edition; Fall of Delta Green; co-author of Bubblegumshoe
 * John Eric Holmes - Dungeons & Dragons Basic Set
 * Miranda Horner - contributions to Bloodshadows and Shatterzone
 * Grant Howitt - Heart: The City Beneath; Honey Heist
 * Conrad Hubbard - contributions to the World of Darkness settings and Exalted
 * Paul Hume - co-author of Bushido, Aftermath!, Daredevils, Shadowrun

I

 * Ross Isaacs - Star Trek: The Next Generation Role-playing Game
 * Shane Ivey - contributed to The One Ring Roleplaying Game

J

 * Steve Jackson (Steve Jackson Games) - The Fantasy Trip, GURPS, Yrth
 * Steve Jackson (Games Workshop) - Fighting Fantasy gamebooks
 * James Jacobs - contributions to Dungeons & Dragons 3rd edition
 * Justin D. Jacobson - Dawning Star
 * Brian R. James - Menzoberranzan: City of Intrigue and other supplements for Dungeons & Dragons
 * Matt James - Monster Vault: Threats to the Nentir Vale and other supplements for Dungeons & Dragons and Pathfinder
 * Jennell Jaquays - Dark Tower, Caverns of Thracia; co-author of Griffin Mountain
 * Harold Johnson - co-author of The Hidden Shrine of Tamoachan and Secret of the Slavers Stockade; contributions to various TSR settings
 * J. Hunter Johnson - GURPS Bestiary; GURPS Japan; GURPS Magic; GURPS Monsters
 * Luke Johnson - contributions to Player's Guide to Eberron; Player's Handbook II; Monster Manual V
 * Gunilla Jonsson - co-author of Mutant and Kult
 * M. Alexander Jurkat - co-founded Eden Studios, Inc.; All Flesh Must Be Eaten; Magic Item Compendium for D&D 3.5
 * Adam Jury - contributions to Shadowrun

K

 * Lucian Kahn - designer of Visigoths vs. Mall Goths
 * Don Kaye - co-creator of Boot Hill
 * J. Andrew Keith - Freedom Fighters
 * William H. Keith Jr. - Behind Enemy Lines, Freedom Fighters
 * Jonaya Kemper - co-writer on Thirsty Sword Lesbians; contributions to 7th Sea
 * Steve Kenson - Mutants & Masterminds, Freedom City; co-creator of Silver Age Sentinels and Blue Rose
 * David Kenzer - HackMaster; The Kingdoms of Kalamar
 * Katharine Kerr - co-author of Legacy of Blood; contributions to Pendragon
 * Shing Yin Khor - co-designer of Field Guide to Memory
 * Ulrich Kiesow - creator of The Dark Eye
 * J. Robert King - co-author of Aurora's Whole Realms Catalog
 * Mary Kirchoff - co-creator of the Dark Sun setting
 * Adam Koebel - co-author of Dungeon World
 * Jeff Koke - GURPS Vampire: The Masquerade, GURPS Black Ops
 * Rudy Kraft - co-author of Griffin Mountain; other contributions to RuneQuest
 * Charlie Krank - Pavis: Threshold to Danger
 * Rick Krebs - Gangbusters
 * Heike A. Kubasch - Angmar, HARP
 * Christopher Kubasik - contributions to TORG, Shadowrun and Earthdawn
 * Robert J. Kuntz - co-author of Gods, Demi-Gods & Heroes
 * Amanda Hamon Kunz - co-author of Van Richten's Guide to Ravenloft; contributions to Pathfinder and Starfinder

L

 * David Ladyman - Chill, GURPS The Prisoner
 * Lenard Lakofka - The Secret of Bone Hill, The Assassin's Knot, Deep Dwarven Delve
 * Sage LaTorra - co-author of Dungeon World
 * Robin D. Laws - Feng Shui, HeroQuest, Dying Earth Roleplaying Game, The Esoterrorists and other GUMSHOE games, Hillfolk, The Yellow King Roleplaying Game
 * Jeff R. Leason - co-author of The Hidden Shrine of Tamoachan; contributions to Chill
 * Andrew Leker - Skyrealms of Jorune
 * Paul Lidberg - Duel
 * Ken Lightner - Real-Life Roleplaying Series for the d20 System
 * Nicole Lindroos - contributions to Everway and Unknown Armies
 * Ian Livingstone - Fighting Fantasy gamebooks
 * Kerry Lloyd - co-author of Thieves' Guild
 * Steve Long - Dark Champions, Hero System 5th and 6th editions, Star Trek: Deep Space Nine Role Playing Game, Star Trek Roleplaying Game, The Lord of the Rings Roleplaying Game
 * James Lowder - Pulp Cthulhu, GURPS Villains, contributions to Dungeons & Dragons
 * T. S. Luikart - Adventures in Middle-earth

M

 * George MacDonald - co-creator of Champions and the Hero System
 * Mark C. MacKinnon - Big Eyes, Small Mouth, The Sailor Moon Role-Playing Game and Resource Book; co-author of Silver Age Sentinels
 * Jeff Mackintosh - co-author of Silver Age Sentinels
 * Ari Marmell - contributions to Scarred Lands and Vampire: The Masquerade
 * Ian Marsh - Time Lord
 * Stephen R. Marsh - Dungeons & Dragons Expert Set; credited with creation of alignment system for Dungeons & Dragons
 * Julia Martin - co-author of Faiths & Avatars; contributions to Dungeons & Dragons 3rd edition
 * Phil Masters - GURPS Castle Falkenstein, Hellboy Sourcebook and Roleplaying Game; GURPS Discworld (with Terry Pratchett)
 * Colin McComb - co-author of the Birthright Campaign Setting; contributions to various TSR settings
 * Angel Leigh McCoy - contributions to Mage: The Ascension and Changeling: The Dreaming
 * Elizabeth McCoy - co-author of GURPS In Nomine and GURPS Illuminati University
 * Anne Gray McCready - Mystery of the Snow Pearls, Red Sonja Unconquered
 * Mike Mearls - Iron Heroes, co-creator of Dungeons & Dragons 5th edition
 * Frank Mentzer - D&D Basic Set third edition; co-author of Temple of Elemental Evil
 * Marc W. Miller - various incarnations of Traveller
 * Steve Miller - contributions to Dungeons & Dragons 3rd edition, including Into the Dragon's Lair
 * Walter Milliken - GURPS Illuminati University
 * Kim Mohan - Cyborg Commando, Wilderness Survival Guide for Advanced Dungeons and Dragons; also editor of Dragon magazine
 * Tom Moldvay - Lords of Creation, D&D Basic Set second edition, Castle Amber; co-creator of Isle of Dread, Mystara
 * Erik Mona - contributions to the Greyhawk setting: also editor of Dragon and Dungeon magazines
 * Christian Moore - Aria: Canticle of the Monomyth; co-author of Star Trek: The Next Generation Role-playing Game
 * James A. Moore - contributions to various World of Darkness games
 * Roger E. Moore - Greyhawk: The Adventure Begins; also editor of Dragon magazine
 * Jenna K. Moran - Nobilis, The Game of Powers (LARP), Chuubo's Marvelous Wish-Granting Engine
 * Jason Morningstar - Durance, Grey Ranks, Fiasco
 * Dave Morris - Dragon Warriors
 * Graeme Morris - contributions to various TSR settings
 * Josh Mosqueira - Constantinople by Night, Montreal by Night; co-author of Tribe 8

N

 * Pete Nash - co-author of RuneQuest II
 * Rae Nedjadi - Apocalypse Keys
 * John Nephew - co-founded Atlas Games; Tall Tales of the Wee Folk
 * Bruce Nesmith - Gamma World 4th edition; co-author of Lankhmar – City of Adventure; contributions to the Dragonlance and Ravenloft settings
 * Douglas Niles - Star Frontiers, Top Secret/S.I., Against the Cult of the Reptile God; co-author of Lankhmar – City of Adventure; contributions to the Dragonlance setting
 * Clinton R. Nixon - The Shadow of Yesterday, Donjon, Paladin
 * David Noonan - contributions to many Dungeons & Dragons products
 * Mike Nystul - The Whispering Vault

O

 * Michael O'Brien - contributions to RuneQuest
 * Steffan O'Sullivan - FUDGE, GURPS Swashbucklers, GURPS Bunnies & Burrows

P

 * Scott Palter - co-author of Deadspeak Dossier for The World of Necroscope
 * Blaine Pardoe - Domination
 * Derek Pearcy - In Nomine
 * Chris Perkins - lead story designer for Ravenloft campaign Curse of Strahd
 * Jeff Perren - co-creator of Chainmail
 * Don Perrin - co-designer of Dragonlance Campaign Setting; Sovereign Stone
 * Steve Perrin - main author of RuneQuest, the Basic Role-Playing system and Steve Perrin's Quest Rules; co-author of Superworld
 * Christian T. Petersen - founder of Fantasy Flight Games; creator of Nocturnum setting for Call of Cthulhu
 * Michael Petersén - co-author of Mutant and KULT
 * Sandy Petersen - main author of Call of Cthulhu; co-author of RuneQuest and Ghostbusters
 * Steve Peterson - co-creator of Champions, the Hero System and the Fuzion system
 * John R. Phythyon, Jr. - co-author of Heaven & Earth and Ghost Dog
 * Jon Pickens - Arms and Equipment Guide for Advanced Dungeons & Dragons, 2nd edition
 * Mike Pohjola - Star Wreck Roleplaying Game, Age of the Tempest, Turku School experimental LARP
 * Mike Pondsmith - Mekton, Cyberpunk, Castle Falkenstein; co-creator of the Fuzion system
 * Greg Porter - TimeLords, CORPS, EABA
 * Chris Pramas - Dragon Age, Warhammer Fantasy Roleplay 2nd edition, Freeport setting
 * Patrick Lucien Price - contributions to Leaves from the Inn of the Last Home supplement for Dragonlance
 * Anthony Pryor - contributions to various TSR settings
 * Lewis Pulsipher - contributions to Fiend Folio for TSR; Swords & Wizardry
 * David L. Pulver - Transhuman Space, GURPS Reign of Steel, GURPS Technomancer; co-author of Ghost Dog; system contributions to GURPS and Tri-Stat dX
 * Sean Punch - GURPS 4th edition, GURPS Lite

R

 * Jean Rabe - contributions to Dungeons & Dragons and Gamma World
 * Merle M. Rasmussen - Top Secret
 * A. Mark Ratner - Space Marines, co-author of Space Opera
 * John D. Rateliff - The Lord of the Rings Roleplaying Game
 * Philip Reed -
 * Paul Reiche III - contributions to Dungeons & Dragons products; co-authored Legion of Gold adventure for Gamma World
 * Thomas M. Reid - contributions to AD&D; Star Wars Roleplaying Game; The Wheel of Time Roleplaying Game
 * Mark Rein·Hagen - Vampire: The Masquerade and other World of Darkness games; the Storyteller system; co-creator of Ars Magica
 * Sean K. Reynolds - contributions to Greyhawk, Forgotten Realms and other TSR settings.
 * Andrew Rilstone - co-authored The Dying of the Light
 * Alex Roberts - Star Crossed, For the Queen
 * Ken Rolston - co-author of Lankhmar – City of Adventure; contributions to Paranoia, Star Wars, RuneQuest and Mystara
 * Aaron S. Rosenberg - Deryni Adventure Game
 * S. John Ross - Uresia: Grave of Heaven, Risus; co-author of GURPS Black Ops
 * Marcus Rowland - Forgotten Futures, Diana: Warrior Princess, The Original Flatland Role Playing Game
 * Charles M. Ryan - contributions to Dungeons & Dragons 3.5
 * Gareth Ryder-Hanrahan - Traveller Core Rulebook; The Laundry RPG

S

 * Ken St. Andre - Tunnels & Trolls, Starfaring, Monsters! Monsters!
 * R.A. Salvatore - Menzoberranzan
 * Carl Sargent - contributions to Greyhawk and Warhammer settings
 * R. Hyrum Savage - Diomin; contributed to Forbidden Kingdoms
 * Steven Schend - contributions to various TSR settings
 * Lawrence Schick - White Plume Mountain, In the Dungeons of the Slave Lords; co-creator of Mystara
 * Robert J. Schwalb - Dungeons & Dragons; A Song of Ice and Fire Roleplaying; Warhammer Fantasy Roleplay
 * Jesse Scoble - El-Hazard Role-Playing Game
 * Stephan Michael Sechi - creator of Talislanta
 * Mike Selinker - co-author of Marvel Super Heroes Adventure Game
 * Matthew Sernett - contributions to Dungeons & Dragons 4th edition
 * Owen Seyler - Aria: Canticle of the Monomyth
 * Jeeyon Shim - co-designer of Field Guide to Memory
 * Kevin Siembieda - The Mechanoid Invasion, Palladium Fantasy Role-Playing Game, Heroes Unlimited, Robotech, Rifts
 * Edward E. Simbalist - co-author of Space Opera and Chivalry & Sorcery
 * Ethan Skemp - Werewolf: The Apocalypse, Werewolf: The Wild West, Werewolf: The Forsaken, Changeling: The Lost, Geist: The Sin-Eaters
 * Bill Slavicsek - Alternity, d20 Modern, Star Wars Roleplaying Game; co-author of TORG, contributions to Dungeons & Dragons 3rd edition
 * Carl Smith - contributions to Dragonlance; co-founded Pacesetter
 * Lester W. Smith - 2300 AD; Dark Conspiracy
 * Mark Smith - co-author of Fighting Fantasy and Way of the Tiger gamebooks
 * John Snead - co-creator of Blue Rose; contributions to Exalted, Trinity and Mage: The Awakening
 * Richard Snider - Adventures in Fantasy; Powers & Perils; contributed to Thieves' World
 * Ree Soesbee - co-author of Celtic Age d20 sourcebook
 * Jared Sorensen - InSpectres
 * Lucien Soulban - Heaven & Earth, Orpheus
 * Warren Spector - co-author of TOON and Send in the Clones
 * Garry Spiegle - contributions to Dragonlance
 * Matthew Sprange - Lone Wolf Multiplayer Game Book
 * Michael Stackpole - Mercenaries, Spies and Private Eyes
 * Greg Stafford - creator of the Glorantha setting, co-author of RuneQuest and designer of the Arthurian RPGs Pendragon and Prince Valiant: The Story-Telling Game
 * Stan! - principal designer for d20 Modern; co-author of Marvel Super Heroes Adventure Game
 * Ed Stark - MasterBook system, Paranoia "fifth edition"; contributions to Dungeons & Dragons 3rd edition
 * Lisa J. Steele - co-author of Bubblegumshoe
 * Owen K.C. Stephens - Pathfinder Roleplaying Game; Starfinder Roleplaying Game; Star Wars Roleplaying Game
 * Lisa Stevens - editor for Ars Magica
 * Doug Stewart - Encyclopedia Magica
 * Greg Stolze - Usagi Yojimbo RPG, REIGN, Better Angels; co-author of Unknown Armies, Godlike and the Delta Green RPG
 * CA Suleiman - Mummy: The Resurrection, Vampire: The Requiem, Mummy: The Curse
 * James L. Sutter - co-creator of Pathfinder Roleplaying Game and Starfinder Roleplaying Game
 * Rick Swan - contributions to Advanced Dungeons & Dragons for TSR

T

 * Brennan Taylor - How We Came To Live Here
 * Paul Tevis - A Penny for My Thoughts
 * Gary L. Thomas - contributions to Traveller and Dungeons & Dragons
 * Chris Thomasson - contributions to Dungeons & Dragons
 * Howard Thompson - contributions to The Fantasy Trip
 * Rodney Thompson - d20 Future; contributions to Star Wars Roleplaying Game, Dark Sun
 * Jamie Thomson - contributions to Fighting Fantasy series
 * Jeff Tidball - Ars Magica 4th edition; Eternal Lies
 * Mike Tinney - Mind's Eye Theatre LARP
 * Adam Tinworth - Demon: The Fallen, Werewolf: The Forsaken; contributions to Hunter: The Reckoning
 * Richard Tucholka - Fringeworthy, Bureau 13
 * Don Turnbull - editor of the Fiend Folio; contributions to Greyhawk setting for TSR
 * Jonathan Tweet - Over the Edge, Everway; co-creator of Ars Magica, Dungeons & Dragons 3rd edition and 13th Age
 * John Scott Tynes - Puppetland, The Golden Dawn; co-creator of Delta Green and Unknown Armies

U

 * Chad Underkoffler - Dead Inside, Truth & Justice, The Zorcerer of Zo, Swashbucklers of the 7 Skies

V

 * Monica Valentinelli - Firefly Role-Playing Game
 * Susan Van Camp - Dragon Storm
 * Allen Varney - the 2004 edition of Paranoia for Mongoose Publishing; co-author of Send in the Clones; contributions to the Hollow World setting for Mystara
 * George Vasilakos - Conspiracy X, All Flesh Must Be Eaten
 * Greg A. Vaughan - contributions to Dungeons & Dragons and Pathfinder Roleplaying Game
 * Travis Vengroff - Liberty: A.F.T.E.R and Domain of the Nameless God, based on his universes Liberty and Dark Dice respectively

W

 * James Wallis - The Extraordinary Adventures of Baron Munchausen
 * April Kit Walsh - Thirsty Sword Lesbians
 * James M. Ward - Metamorphosis Alpha, Gamma World; co-author of Gods, Demi-Gods & Heroes
 * Ross Watson - Warhammer 40,000 Roleplay
 * Darren Watts - co-author of Champions 5th edition
 * Margaret Weis - Dragonlance
 * Jordan Weisman - co-creator of the BattleTech setting
 * Jean Wells - Palace of the Silver Princess
 * Chuck Wendig - co-author of Hunter: The Vigil
 * David Wesely - Braunstein games
 * Lawrence Whitaker - contributions to Basic Role Playing
 * John Wick - Legend of the Five Rings, Orkworld; co-creator of 7th Sea
 * Steve Wieck - co-creator of Exalted, Mage: the Ascension and other World of Darkness games
 * Stewart Wieck - co-creator of Mage: the Ascension, Hunter: The Reckoning and other World of Darkness games
 * Chris Wiese - contributions to Fading Suns
 * J. D. Wiker - contributions to Star Wars Roleplaying Game and Dungeons & Dragons 3rd edition
 * Skip Williams - co-creator of Dungeons & Dragons 3rd Edition
 * Walter Jon Williams - Privateers & Gentlemen
 * Lynn Willis - co-author of RuneQuest, Basic Role-Playing, Stormbringer, Call of Cthulhu and Ghostbusters
 * Kevin Wilson - Spycraft; co-creator of 7th Sea
 * Ray Winninger - Underground
 * Steve Winter - co-author of Marvel Super Heroes
 * Loren Wiseman - author of GURPS Traveller; contributions to Traveller
 * Teeuwynn Woodruff - The World of Species for the MasterBook system; World of Darkness: Gypsies; contributions to Bloodshadows and the Ravenloft setting
 * Erick Wujcik - Teenage Mutant Ninja Turtles & Other Strangeness, After the Bomb, Ninjas & Superspies, Amber Diceless Role-Playing
 * James Wyatt - Oriental Adventures for Dungeons & Dragons 3rd edition

Y-Z

 * Mike Young - Rules to Live By LARP