| Roleplaying Game Credits: |
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| Book | | Publisher | | Credit |
| Encyclopedia of Prestige Classes (d20 System (generic)) (2003) | | Fast Forward Entertainment | | Writing and Design |
| Assassin's Handbook, The (d20 System (generic)) (2002) | | Green Ronin Publishing | | Design |
| Green Races (2002) | | Fast Forward Entertainment | | Design |
| Secret College of Necromancy (d20 System (generic)) (2002) | | Green Ronin Publishing | | Design |
| Jade Dragons & Hungry Ghosts (d20 System (generic)) (2001) | | Green Ronin Publishing | | Introduction |
| Jade Dragons & Hungry Ghosts (d20 System (generic)) (2001) | | Green Ronin Publishing | | Design |
| Sovereign Stone Campaign Sourcebook (2001) | | Sovereign Press | | Design Assistance |
| AD&D Dungeon Master Guide, 2nd Ed. Revised (Advanced Dungeons & Dragons) (1995) | | TSR, Inc. | | Design |
| AD&D Player's Handbook, 2nd Ed. Revised (Advanced Dungeons & Dragons) (1995) | | TSR, Inc. | | Design |
| Ruins of Zhentil Keep (Forgotten Realms) (1995) | | TSR, Inc. | | Additional Design |
| City Sites (Advanced Dungeons & Dragons) (1994) | | TSR, Inc. | | Design Assistance |
| First Quest (Advanced Dungeons & Dragons) (1994) | | TSR, Inc. | | Design |
| Kromosome (Amazing Engine) (1994) | | TSR, Inc. | | System Design |
| Planes of Chaos (Planescape) (1994) | | TSR, Inc. | | Design Review |
| Planescape Campaign Setting (1994) | | TSR, Inc. | | Design |
| Amazing Engine System Guide (1993) | | TSR, Inc. | | Design |
| Book of Artifacts (Advanced Dungeons & Dragons) (1993) | | TSR, Inc. | | Design |
| Book of Artifacts (Advanced Dungeons & Dragons) (1993) | | TSR, Inc. | | Developer |
| Bughunters (Amazing Engine) (1993) | | TSR, Inc. | | System Design |
| For Faerie, Queen, & Country (Amazing Engine) (1993) | | TSR, Inc. | | Design |
| Monstrous Manual (Advanced Dungeons & Dragons) (1993) | | TSR, Inc. | | Concepts |
| Player's Guide to the Dragonlance Campaign (1993) | | TSR, Inc. | | Source Material |
| Aurora's Whole Realms Catalogue (Forgotten Realms) (1992) | | TSR, Inc. | | Additional Design |
| Gamma World, 4th Ed. (1992) | | TSR, Inc. | | Contributor |
| Golden Voyages (Al-Qadim) (1992) | | TSR, Inc. | | Design |
| Pirates of the Fallen Stars (Forgotten Realms) (1992) | | TSR, Inc. | | Combat System Development |
| Road to Urik (Dark Sun) (1992) | | TSR, Inc. | | Design |
| Unsung Heroes (Dragonlance) (1992) | | TSR, Inc. | | Design Coordinator |
| Freedom (Dark Sun) (1991) | | TSR, Inc. | | Design |
| Monstrous Compendium Forgotten Realms Appendix II (1991) | | TSR, Inc. | | Design Coordinator |
| Tome of Magic (Advanced Dungeons & Dragons) (1991) | | TSR, Inc. | | Developer |
| Tome of Magic (Advanced Dungeons & Dragons) (1991) | | TSR, Inc. | | Design |
| Vikings Campaign Sourcebook (Advanced Dungeons & Dragons) (1991) | | TSR, Inc. | | Design |
| Horde, The (Forgotten Realms) (1990) | | TSR, Inc. | | Design |
| Vecna Lives! (Greyhawk) (1990) | | TSR, Inc. | | Design |
| AD&D Dungeon Master's Guide, 2nd Ed. (Advanced Dungeons & Dragons) (1989) | | TSR, Inc. | | Design |
| AD&D Player's Handbook, 2nd Ed. (Advanced Dungeons & Dragons) (1989) | | TSR, Inc. | | Design |
| Monstrous Compendium, Volume 1 (Advanced Dungeons & Dragons) (1989) | | TSR, Inc. | | Design Concept |
| Monstrous Compendium, Volume 2 (Advanced Dungeons & Dragons) (1989) | | TSR, Inc. | | Design Concept |
| Time of the Dragon (Dragonlance) (1989) | | TSR, Inc. | | Design |
| Commando (Top Secret) (1988) | | TSR, Inc. | | Design |
| Kara-Tur: The Eastern Realms (Oriental Adventures) (1988) | | TSR, Inc. | | Coordinator |
| Mad Monkey vs. the Dragon Claw (Oriental Adventures) (1988) | | TSR, Inc. | | Design Consultant |
| Ruins of Adventure (Forgotten Realms) (1988) | | TSR, Inc. | | Author |
| Blood of the Yakuza (Oriental Adventures) (1987) | | TSR, Inc. | | Author |
| Book of Lairs II (Advanced Dungeons & Dragons) (1987) | | TSR, Inc. | | Author |
| Ochimo: The Spirit Warrior (Oriental Adventures) (1987) | | TSR, Inc. | | Design Consultant |
| Avengers Coast-To-Coast (Marvel Super Heroes) (1986) | | TSR, Inc. | | Author |
| Night of the Seven Swords (Oriental Adventures) (1986) | | TSR, Inc. | | Design & Development |
| Queen of the Spiders (Advanced Dungeons & Dragons) (1986) | | TSR, Inc. | | Additional Material |
| Ravenloft II: The House on Gryphon Hill (Advanced Dungeons & Dragons) (1986) | | TSR, Inc. | | Design Team |
| Swords of the Daimyo (Oriental Adventures) (1986) | | TSR, Inc. | | Author |
| Conan Role-Playing Game (1985) | | TSR, Inc. | | Game Design |
| Earthshaker! (Dungeons & Dragons (classic)) (1985) | | TSR, Inc. | | Design |
| Oriental Adventures (Advanced Dungeons & Dragons) (1985) | | TSR, Inc. | | Design |
| Combat Shield and Mini-adventure (Dungeons & Dragons (classic)) (1984) | | TSR, Inc. | | Design |
| Conan Unchained! (1984) | | TSR, Inc. | | Author |
| Veiled Society, The (Dungeons & Dragons (classic)) (1984) | | TSR, Inc. | | Design |
| Blizzard Pass (Dungeons & Dragons (classic)) (1983) | | TSR, Inc. | | Design |
| Master of the Desert Nomads (Dungeons & Dragons (classic)) (1983) | | TSR, Inc. | | Design |
| Temple of Death (Dungeons & Dragons (classic)) (1983) | | TSR, Inc. | | Design |
| Assault on the Aerie of the Slave Lords (Advanced Dungeons & Dragons) (1981) | | TSR, Inc. | | Assistance |
| Dwellers of the Forbidden City (Advanced Dungeons & Dragons) (1981) | | TSR, Inc. | | Design |
| Gamma World Referee's Screen and Mini-Module (1981) | | TSR, Inc. | | Editing |
| In the Dungeons of the Slave Lords (Advanced Dungeons & Dragons) (1981) | | TSR, Inc. | | Assistance |
| Isle of Dread, The (Dungeons & Dragons (classic)) (1981) | | TSR, Inc. | | Editing |
| Isle of Dread, The (Dungeons & Dragons (classic)) (1981) | | TSR, Inc. | | Author |
| Keep on the Borderlands, The (Dungeons & Dragons (classic)) (1981) | | TSR, Inc. | | Editing |
| Keep on the Borderlands, The (Dungeons & Dragons (classic)) (1981) | | TSR, Inc. | | Revision |
| Secret of the Slavers Stockade (Advanced Dungeons & Dragons) (1981) | | TSR, Inc. | | Additional Editing |
| Secret of the Slavers Stockade (Advanced Dungeons & Dragons) (1981) | | TSR, Inc. | | Developer |
| Expedition to the Barrier Peaks (Advanced Dungeons & Dragons) (1980) | | TSR, Inc. | | Editing and Production |
| Hidden Shrine of Tamoachan, The (Advanced Dungeons & Dragons) (1980) | | TSR, Inc. | | Editing and Production |
| Hidden Shrine of Tamoachan, The (Advanced Dungeons & Dragons) (1980) | | TSR, Inc. | | Assistance |
| Queen of the Demonweb Pits (Advanced Dungeons & Dragons) (1980) | | TSR, Inc. | | Developer |
| Rogues Gallery, The (Advanced Dungeons & Dragons) (1980) | | TSR, Inc. | | Design |
| Rogues Gallery, The (Advanced Dungeons & Dragons) (1980) | | TSR, Inc. | | Editing |
| Slave Pits of the Undercity (Advanced Dungeons & Dragons) (1980) | | TSR, Inc. | | Writing and Design |
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| Magazine Article Credits: |
| |
| Article | | Credit |
| "?And a Step Beyond That" in Dragon #122 (Jun 1987) | | Author |
| "A Hoard for the Horde" in Dragon #163 (Nov 1990) | | Author |
| "Amazing Engine System Guide" in Dragon #203 (Mar 1994) | | Design |
| "Game Wizards, The" in Dragon #139 (Nov 1988) | | Author |
| "Game Wizards: Who Dies, Round II" in Dragon #121 (May 1987) | | Author |
| "Life and Death of a Castle, The" in Dragon #121 (May 1987) | | Author |
| "Plane Truth, Part I: Codifying Sigil" in Dragon #203 (Mar 1994) | | Author |
| "Plane Truth, Part III: The Transformation" in Dragon #205 (May 1994) | | Author |
| "Sage Advice" in Dragon #139 (Nov 1988) | | Additional Material |
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| Fiction Credits: |
| |
| Book | | Publisher | | Credit |
| Uneasy Alliances (Forgotten Realms) (1998) | | TSR, Inc. | | Author |
| King Pinch (Forgotten Realms) (1995) | | TSR, Inc. | | Author |
| Soldiers of Ice (Forgotten Realms) (1993) | | TSR, Inc. | | Author |
| Beyond the Moons (Spelljammer) (1991) | | TSR, Inc. | | Author |
| Horselords (Forgotten Realms) (1990) | | TSR, Inc. | | Author |
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| Short Story Credits: |
| |
| Story | | Credit |
| "Gallows Day" (Forgotten Realms) in Realms of Infamy | | Author |
| "Patronage" (Forgotten Realms) in Realms of Valor | | Author |
| "Too Familiar" (Forgotten Realms) in Realms of Magic | | Author |
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