| Roleplaying Game Credits: |
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| Book | | Publisher | | Credit |
| Domains of Dread (Ravenloft) (1997) | | TSR, Inc. | | Original Design |
| Psionic Artifacts of Athas (Dark Sun) (1996) | | TSR, Inc. | | Design |
| Beyond the Prism Pentad (Dark Sun) (1995) | | TSR, Inc. | | Project Coordinator |
| Dark Sun Campaign Setting, Expanded and Revised (1995) | | TSR, Inc. | | Project Coordinator |
| Dark Sun Monstrous Compendium Appendix II: Terrors Beyond Tyr (1995) | | TSR, Inc. | | Design |
| Fighter's Player Pack (Advanced Dungeons & Dragons) (1994) | | TSR, Inc. | | Coordinator |
| First Quest (Advanced Dungeons & Dragons) (1994) | | TSR, Inc. | | Design |
| Hour of the Knife (Ravenloft) (1994) | | TSR, Inc. | | Design |
| Monstrous Compendium Ravenloft Appendix III: Creatures of Darkness (1994) | | TSR, Inc. | | Additional Design |
| Priest's Player Pack (Advanced Dungeons & Dragons) (1994) | | TSR, Inc. | | Coordinator |
| Ravenloft Campaign Setting, 2nd Ed. (1994) | | TSR, Inc. | | Design |
| Thief's Player Pack (Advanced Dungeons & Dragons) (1994) | | TSR, Inc. | | Coordinator |
| Wizard's Player's Pack (Advanced Dungeons & Dragons) (1994) | | TSR, Inc. | | Coordinator |
| Created, The (Ravenloft) (1993) | | TSR, Inc. | | Design |
| House of Strahd (Ravenloft) (1993) | | TSR, Inc. | | Design |
| Van Richten's Guide to Werebeasts (Ravenloft) (1993) | | TSR, Inc. | | Additional Design |
| Forbidden Lore (Ravenloft) (1992) | | TSR, Inc. | | Design |
| From the Shadows (Ravenloft) (1992) | | TSR, Inc. | | Design |
| Gamma World, 4th Ed. (1992) | | TSR, Inc. | | Design |
| Mutant Master (Gamma World) (1992) | | TSR, Inc. | | Design |
| Unsung Heroes (Dragonlance) (1992) | | TSR, Inc. | | Design |
| Darklords (Ravenloft) (1991) | | TSR, Inc. | | Additional Design |
| Goblins' Return (Spelljammer) (1991) | | TSR, Inc. | | Design |
| Monstrous Compendium Forgotten Realms Appendix II (1991) | | TSR, Inc. | | Design |
| Touch of Death (Ravenloft) (1991) | | TSR, Inc. | | Design |
| Greyhawk Ruins (1990) | | TSR, Inc. | | Additional Design |
| Monstrous Compendium Dragonlance Appendix (1990) | | TSR, Inc. | | Design |
| Monstrous Compendium Greyhawk Appendix (1990) | | TSR, Inc. | | Design |
| Monstrous Compendium Spelljammer Appendix (1990) | | TSR, Inc. | | Design |
| Ravenloft: Realm of Terror (1990) | | TSR, Inc. | | Game Design |
| Hall of Heroes (Forgotten Realms) (1989) | | TSR, Inc. | | Author |
| Monstrous Compendium, Volume 1 (Advanced Dungeons & Dragons) (1989) | | TSR, Inc. | | Design |
| Monstrous Compendium, Volume 2 (Advanced Dungeons & Dragons) (1989) | | TSR, Inc. | | Design |
| Tales of the Outer Planes (Advanced Dungeons & Dragons) (1988) | | TSR, Inc. | | Author |
| Book of Lairs II (Advanced Dungeons & Dragons) (1987) | | TSR, Inc. | | Author |
| Master Player Screen Featuring The Spindle (Dungeons & Dragons (classic)) (1985) | | TSR, Inc. | | Design |
| Zebulon's Guide to Frontier Space (Star Frontiers) (1985) | | TSR, Inc. | | Special Contributions |
| Dragons of Desolation (Dragonlance) (1984) | | TSR, Inc. | | Game Design |
| Sabre River (Dungeons & Dragons (classic)) (1984) | | TSR, Inc. | | Design |
| War Rafts of Kron, The (Dungeons & Dragons (classic)) (1984) | | TSR, Inc. | | Design |
| |
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| Magazine Article Credits: |
| |
| Article | | Credit |
| "Broken Photocopiers" in Polyhedron #67 (Jan 1992) | | Author |
| "Game Wizards: Ravenloft" in Dragon #162 (Oct 1990) | | Author |
| "Gamma World Game Lives, The" in Polyhedron #64 (Oct 1991) | | Author |
| "Gamma World Game Loot" in Polyhedron #69 (Mar 1992) | | Author |
| "Know Who Your Friends Are" in Polyhedron #72 (Jun 1992) | | Author |
| "Secrets Best Kept Hidden" in Polyhedron #74 (Aug 1992) | | Author |
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