Macrocosm has a new line of science fiction miniatures — and a free rules set. From their website:
Macrocosm is a 28mm Sci-Fi Skirmish game set in a future galaxy of excitement, rayguns, weird aliens and wonder.
Players take on the role of a group of adventurers and explorers, represented by a group of miniatures, where they play out scenarios and campaigns to determine the fate of the colonies and to further the glory of their chosen faction… and of course… to have fun!