About Steffan O'Sullivan
Steffan O'Sullivan was an American writer and role-playing game designer.
Steffan O'Sullivan is the author of several role-playing game books. Among his works are the GURPS system books GURPS Bestiary, GURPS Bunnies & Burrows, and GURPS Swashbucklers. He is also the collaborative author of the Fudge open gaming system and the Sherpa game.
Career Steffan O'Sullivan was a writer for GURPS products including GURPS Swashbucklers (1990) and GURPS Bunnies & Burrows (1992). He designed the FUDGE role-playing game system, first releasing it for free on the internet on December 7, 1993.
As of 2024, he lives in New Hampshire.
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Important facts
Frequently asked questions
Who was Steffan O'Sullivan?
role-playing game designer
What was Steffan O'Sullivan's occupation?
Steffan O'Sullivan was a writer and role-playing game designer.
What nationality was Steffan O'Sullivan?
Steffan O'Sullivan was American.
Sources & further reading
· Wikipedia: Steffan O'Sullivan
· DBpedia: Steffan O'Sullivan
Cite this page
APA: Biography.guide. (2026). Steffan O'Sullivan. https://biography.guide/steffan-o-sullivan/
MLA: "Steffan O'Sullivan." Biography.guide, https://biography.guide/steffan-o-sullivan/.
Chicago: "Steffan O'Sullivan." Biography.guide. https://biography.guide/steffan-o-sullivan/.
Data last updated: 2026-09-20 · Spot an error? Report a correction.
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