Petersen's Abominations: Tales of Sandy Petersen: 23152-H (Call of Cthulhu Roleplaying)
by Sandy Petersen,Mike Mason
ISBN 13: 9781568824529
Format: Illustrated (200 pages) Publisher: Chaosium Published: 01 May 2018
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Shadows Over Stillwater: Against the Mythos in the Down Darker Trails Setting
by Kevin Ross,C I Werner,Mike Mason
ISBN 13: 9781568824161
Format: Illustrated (176 pages) Publisher: Chaosium Inc Published: 15 Jun 2019
Berlin: The Wicked City: Unveiling the Mythos in Weimar Berlin (Call of Cthulhu Roleplaying)
by David Larkins,Mike Mason,Lynne Hardy
ISBN 13: 9781568824178
Format: Illustrated (272 pages) Publisher: Chaosium Inc Published: 15 Sep 2019
Terror Australis: Call of Cthulhu in the Land Down Under
by Mike Mason
ISBN 13: 9781568824154
Format: Illustrated (304 pages) Publisher: Chaosium Published: 15 Mar 2019
Cthulhu Dark Ages (Call of Cthulhu)
by Chad Bowser,Andi Newton,Mike Mason
ISBN 13: 9781568824215
Format: Hardcover (272 pages) Publisher: Chaosium Inc Published: 01 Jan 2020
Alone Against the Frost: Solitaire Adventure in Canada's Wilds
by Glen Rahman,Gavin Inglis,Mike Mason
ISBN 13: 9781568823706
Format: Illustrated (120 pages) Publisher: Chaosium Inc Published: 30 Jan 2020
A Time to Harvest: A Beginner Friendly Campaign for Call of Cthulhu
ISBN 13: 9781568823836
Format: Hardcover (336 pages) Publisher: Chaosium Inc Published: 01 Jun 2022
Cults of Cthulhu
ISBN 13: 9781568824390
Format: Hardcover (368 pages) Publisher: Chaosium Inc Published: 30 Jun 2022
In Gratitude of the Divine Feminine: Inspirational Readings
by Lynnea Ann Honn,Mike Mason
ISBN 13: 9781987768756
Format: Paperback (147 pages) Publisher: CreateSpace Independent Publishing Platform Published: 11 Jul 2018