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".
Challenge (game magazine) Challenge was a role-playing game magazine published by Game Designers' Workshop between 1986 and 1996. Announced in "Journal of the Travellers Aid Society" No. 22, the new (at the time unnamed) magazine was going to expand "JTAS" to a larger format (8.5"×11") and add coverage of GDW's new game "Twilight 2000" and other games. The larger size would allow printing of things such as deck plans or sector maps which would not fit in the smaller "JTAS" format.