Who is the owner of a small publishing firm focused on a series of related science fiction role-playing games, the first published in 1977 by Game Designers' Workshop?
Roger Sanger Roger Sanger is an American game designer and the owner of Digest Group Publications, a small publishing firm focused on the role-playing game market and specifically on the game "Traveller".
Hades Publications Hades Publications is a publishing company owned by Brian Hades that focuses on Science Fiction and Fantasy literature. The company publishes under four different imprints and is currently the largest dedicated Canadian Publisher of Science Fiction and Fantasy.