Space Quest
A spacefaring sci-fi RPG. It uses a d30-based system with class-based character creation and level-based advancement. The basic system includes six classes (spacers¸ warriors¸ mutates/psionics¸ technics¸ or biotechs) and three races. The basic system also includes random star system generation¸ though based on the erroneous Bode's Law. - A description from https://darkshire.net/jhkim/rpg/encyclopedia/ with kind permission of John H. Kim