This boxed set is the base set for the Star Frontiers system by TSR Inc. The original box set was blue and a couple years later they released the Star Frontiers - Alpha Dawn set which was the very same as the original boxed set - just renamed after a number of expansions and modules started to arrive on the scene from TSR. The primary difference is the covers - which were magenta instead of blue. Even the copyright notices on the insides of the booklets (original blue and new magenta) were the same.