FanTac
In 1977 Mark formed FanTac Games primarily to market Space Marines. FanTac published 3 titles; Space Marines (a science-fiction wargame), Gi'ac My (a Vietnam wargame), and Orbit War (an interplanetary combat wargame). Mark was the author of Space Marines and he collaborated with Fitzhugh MacCrae and Bruce Lutz on Gi'ac My.
He met Scott Bizar, the founder of Fantasy Games Unlimited, at Gen Con in 1977, and that meeting eventually led to the sale of the rights for Space Marines to FGU.
Read more about this topic: A. Mark Ratner