Shadow World is a high-fantasy campaign setting situated on the fictional planet of Kulthea, currently maintained by the primary author of the setting, Terry K. Amthor an American game designer, who has worked primarily on role-playing games, and as a fantasy author, and is of Eidolon Studio, born on which date? 
Shadow World (role playing game):  It is currently maintained by the primary author of the setting, Terry K. Amthor of Eidolon Studio (who also holds the trademark for Shadow World, and copyrights for non-gaming fiction related to the world). Terry K. Amthor: Terry K. Amthor (born October 18, 1958) is an American game designer who has worked primarily on role-playing games, and as a fantasy author.
October 18, 1958