Call of Cthulhu 40th Anniversary November 7, 2022February 28, 2023 by Stu Horvath and John McGuireCategories PodcastCall of Cthulhu, Chaosium, Keeper Tips2 Comments on Call of Cthulhu 40th Anniversary Cthulhu may be an ageless horror, but the Call of Cthulhu RPG just turned forty!