James Jacobs is an American designer and author of role-playing games and texts in the fantasy, horror and the occult genres.
Jacobs has been involved in the role-playing industry since the age of sixteen, when his adventure "Scepter of the Underworld" was published in Dungeon #12 in 1988.
[citation needed] He moved to Seattle after graduating from college and worked his way into Wizards of the Coast's sales department.
[citation needed] Jacobs has been the developer, lead designer, and sometimes cartographer on releases for Bastion Press, Green Ronin Publishing, Wizards of the Coast, and Paizo.
Among Jacobs' other writings is the "Demonomicon of Iggwilv" feature in Dragon magazine, and he has contributed a number of adventure stories for Dungeon.