Marc W. Miller is an American game designer.
Miller was one of the founding partners of the Game Designers' Workshop (GDW), and the original creator of the Traveller science-fiction role-playing game. After GDW folded, the Traveller rights reverted to him, resulting in three more editions of the game, administered by his company Far Future Enterprises:
“The purpose of the referee is to present obstacles for players to overcome as they go about seeking their goals, not to constantly make trouble for them. This is a subtle distinction, and one that many beginners have trouble with.”