Creador de juegos como Over the Edge, Feng Shui, Hero Wars, The Dying Earth y el sistema GUMSHOE, y de varios suplementos para D&D4.
| ▲Título▽ | ▲C▼ | ▲Año▼ | ▲V▼ | ▲Concepto▼ |
|---|---|---|---|---|
| Belle Époque Paris |   | 2018 | — | Escritor |
| Battle Wears No Mask | | 2018 | — | Escritor |
| Backlot Gothic (junto a Jérôme Huguenin) |  | 2009 | — | Escritor |
| Appendix: The Armitage Files (junto a Jérôme Huguenin) |  | 2010 | — | Escritor |
| Appendices: Upper Crust American Names. French Names. | | 2018 | — | Escritor |
| Appendices (to "Cthulhu Confidential") (junto a Chris Spivey y Ruth Tillman) | | 2017 | — | Escritor |
| Afterword: The Alien Thoughts That Continued To Course Through Ted Gallatin’s Brain ... |   | 2014 | — | Escritor |
| A Howling From Carcosa |  | 2018 | — | Escritor |
| A Feast for Wolves |  | 2018 | — | Escritor |
