Patrick O'Duffy (O'Duffy, Patrick)

via
Advanced Players Guide
by Aaron Rosenberg, Patrick O'Duffy, White W0Lf, Jeffrey Quinn, Geoff Skellams, Jeremy McHugh, Andrew Bates, Janice M. Sellers, Michael B. Lee, Thomas Denmark, Matt Milberger, Daren Bader
Hardcover, Sword & Sorcery Studio, ISBN 1588469611 (1-58846-961-1)
Cult Of The Illuminated
by Patrick O'Duffy, Mur Lafferty, Not Available
Softcover, Psi, ISBN 1588466825 (1-58846-682-5)
via
Demon Players Guide
by Patrick O'Duffy, Chuck Wendig, Matt McFarland, White W0Lf, Kyla Ward, Jacob Dicherty
Hardcover, Psi, ISBN 1588467562 (1-58846-756-2)
via
Devil's Due: Devil's Due
by Patrick O'Duffy, White Wolf, Morgan A. McLaughlin
Softcover, Psi, ISBN 1588462951 (1-58846-295-1)
Earthbound
by Patrick O'Duffy, Chuck Wendig, White W0Lf, Kyla Ward
Softcover, Psi, ISBN 1588467619 (1-58846-761-9)
Fear to Tread
by Lee, Patrick O'Duffy, Kula Ward
Softcover, Psi, ISBN 1588467538 (1-58846-753-8)
Gamma World: Machines and Mutants
by Patrick O'Duffy
Hardcover, White Wolf Publishing, Incorporated, ISBN 1588460673 (1-58846-067-3)
Gazetteer
by Brian Campbell, Patrick O'Duffy, Robert J. Schwalb
Hardcover, Green Ronin Pub, ISBN 1932442502 (1-932442-50-2)
Houses of the Fallen
by Patrick O'Duffy, Adam Tinworth, White W0Lf, Kyla Ward, Jacob Docheryt, Eleanor Holmes
Hardcover, Psi, ISBN 1588467600 (1-58846-760-0)
Hunter: Fall from Grace
by Greg Stolze, Tim Dedopulos, Patrick O'Duffy, Chuck Wendig, Rick Chillot
Softcover, Psi, ISBN 1588467082 (1-58846-708-2)
Hunter the Reckoning Storytellers Handbook
by David Carroll, Ken Cliffe, Lou Prosperi, Philippe Boulle, Carl Bowen, James Maliszewski, Patrick O'Duffy, Mike Mearls, Sean Riley, Chuck Wendig, Mustafa Bashir
Hardcover, Psi, ISBN 1588467015 (1-58846-701-5)
In Nomine Liber Canticorum: The Book of Songs
by David Edelstein, Sam Chupp, Alain H. Dawson, Jo Hart
Softcover, Jackson Games, Incorporated, Steve, ISBN 155634354X (1-55634-354-X)
Nomads
by Greg Stolze, Patrick O'Duffy, WORLD OF DARKNESS
Hardcover, Psi, ISBN 1588462528 (1-58846-252-8)
Thieves' World
by Aaron Rosenberg, Patrick O'Duffy, Robert J. Schwalb, Gary Astleford, Lynn Abbey
Softcover, Green Ronin Pub, ISBN 193244274X (1-932442-74-X)
via
Utopia
by Greg Stolze, Patrick O'Duffy, Chuck Wendig
Softcover, Psi, ISBN 1588467066 (1-58846-706-6)
via
World of Darkness: Time of Judgment
by Michael Goodwin, Steve Kenson, Greg Stolze, Peter Woodworth, Patrick O'Duffy, Chuck Wendig, White W0Lf, Kyla Ward, Carrie Ann Lewis, Eleanor Holmes
Hardcover, Psi, ISBN 158846475X (1-58846-475-X)