Masks of Nyarlathotep Companion (2017) February 19, 2019May 19, 2024 by Stu HorvathCategories PostCall of Cthulhu, Chaosium, Masks of Nyarlathotep, Masks of Nyarlathotep Companion, Sixty-Stone PressLeave a Comment on Masks of Nyarlathotep Companion (2017) The greatest RPG campaign of all time gets the greatest player-made companion of all time.