Star Frontiers 1982 T-Shirt

Star Frontiers is a space opera role-playing game that is set near the center of a spiral galaxy. A previously undiscovered quirk of the laws of physics allows starships to jump to "The Void," a hyperspatial realm that greatly shortens the travel times between inhabited worlds, once they reach 1% of the speed of light. Four races — Dralasite, Humans, Vrusk, and Yazirian — have independently discovered this way of travelling vast distances, and in "The Frontier Sector," they form the United Planetary Federation (UPF). A large number of the star systems shown on the map of the Frontier sector in the basic rule book are unexplored and undetailed, allowing the game master to put whatever they wish there.