This is a list of individuals that design role-playing games, including live-action role-playing games but excluding computer and console games. Artists are listed separately on the annotated List of role-playing game artists. See List of computer and video game industry people and its children for writers of material for computer games. - Keith Baker - Eberron
- Meguey Baker
- Richard Baker
- Vincent Baker
- Jim Bambra
- T. Glenn Bane
- M. A. R. Barker - Tekumel
- Bruce Baugh
- Wolfgang Baur
- Dan Bayn - Author of the Wushu RPG
- Tim Beach
- Rob Bell
- Scott Bennie
- Steve Berman
- Jason L Blair - Little Fears, Wyrd is Bond, Normal, Texas
- Anders Blixt - has written for Traveller, MERP, Cyberspace, and a multitude of Swedish games
- Brian Blume
- Marc Blumberg
- Ed Bonny
- Karen Boomgarden
- R. Sean Borgstrom - Nobilis
- Emily Care Boss
- Norson Botrel - Brazilian author
- Eric L. Boyd
- Patrick Bradley
- Brenda Brathwaite - Wizardry series, Dungeons & Dragons: Heroes
- Mike Breault
- Bill Bridges - Werewolf: The Apocalypse, Mage: The Awakening, Mage: The Ascension, Fading Suns
- Terry Brooks
- Anne Brown
- Timothy Brown
- Phil Brucato - Mage: The Ascension, Mage: The Sorcerers Crusade, Deliria: Faerie Tales for a New Millennium, Werewolf: The Apocalypse
- Jason Bulmahn - Pathfinder Roleplaying Game
- Rich Burlew
- Eric Burns
- Clash Bowley - Flying Mice LLC games such as StarCluster and Cold Space
- Wilf K. Backhaus - Chivalry & Sorcery
- Daniel Salas
- R.A. Salvatore - Menzoberranzan
- Carl Sargent
- R. Hyrum Savage - Creator of Diomin, lead designer of Chill 3rd Edition. and Brand Manager for the Marvel and DC Comics TCG's
- Steven Schend
- Lawrence Schick
- F. Wesley Schneider - Former associate editor of Dragon magazine. Currently member of Paizo Publishing R&D staff.
- Stephen Schubert
- Robert Schwalb
- Daniel Scott Palter - Founded West End Games (WEG), co-author of games in its own company (WEG) and in Ad Astra Games
- Mike Selinker
- Matthew Sernett
- Dean Shomshak
- Kevin Siembieda - Author of Rifts, co-founder of Palladium Books
- Scott Sigler
- Edward E. Simbalist - Author of Space Opera and Chivalry & Sorcery
- Lawrence R. Sims
- Shane Singleton - Chronicles System
- Micah Skaritka - Author of Obsidian and Shadow Nations, founder of Apophis Consortium
- Bill Slavicsek
- John Snead
- Matt Snyder - Dust Devils, Nine Worlds
- Randal Snyder - Sundered Epoch: Generations (SEG)
- Jared A. Sorensen - InSpectres, octaNe, Darkpages, Lacuna Part 1.
- Warren Spector
- Ken St. Andre - Author of Tunnels and Trolls
- Brian St. Claire-King - Fates Worse Than Death, Tibet, In Dark Alleys
- Michael Stackpole - Author of Star Wars and Battletech books
- Greg Stafford - Creator of Glorantha, founder of Chaosium, co-author of RuneQuest and HeroQuest, author of the novel King of Sartar and the RPG Pendragon
- Stan!
- Ed Stark
- Lazlo Steele - Co-Founder of Undecided Studios, Projects include: Absolute 0, Duelist System, and Racer
- Owen K.C. Stephens - Star Wars: Starships of the Galaxy, Advanced GameMaster's Guide, d20 Cyberscape
- Greg Stolze - Author of Usagi Yojimbo RPG, Unknown Armies and Godlike
- Travis Stout
- Keith Strohm
- Patrick Sweeney
- James Wallis
- James M. Ward
- Darren Watts
- Frederick Weining
- Margaret Weis - TSR's Dragonlance and MWP's Serenity
- David Wesely
- John Wick- Game Designer of Legend of the Five Rings, 7th Sea, and Orkworld.
- Chris Wiese
- Jennifer Clarke Wilkes
- Tim Willard - Year of the Zombie for d20 Modern
- Penny Williams
- Skip Williams
- Walter Jon Williams - Privateers & Gentlemen and Hardwired for Cyberpunk
- Lynn Willis - Co-author of RuneQuest, Basic Role-Playing, Stormbringer, Call of Cthulhu and Ghostbusters
- Steve Winter
- David Wise
- Loren Wiseman
- Teeuwynn Woodruff
- Dave Woodrum
- Jonathan l. Woodward - many Steve Jackson Games GURPS books, including GURPS Hellboy
- Doug Woolsey - Battleaxe RPG
- Erick Wujcik - Game Designer of Amber Diceless Roleplaying Game, Teenage Mutant Ninja Turtles & Other Strangeness, Revised RECON, Ninjas and Superspies, After The Bomb, etc.
- James Wyatt
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