Nebuleon
A spacefaring sci-fi RPG with a percentile skill-based system (the ""Iridium System""). It is set in the RFW (Republic of Free Words) which establishes regular diplomatic ties¸ encourages trade¸ keeps shipping lanes open¸ protects traders¸ and maintains peace. Alongside it¸ the Andromedaen Council of Guilds¸ the Grou-Lynn Empire¸ and the Kolkesh Empire seek to strengthen the galaxy from the threat of the Jiran Theocracy. Character creation is random-roll attributes (best of 3d20)¸ followed by choosing a class which influences skills. - A description from https://darkshire.net/jhkim/rpg/encyclopedia/ with kind permission of John H. KimNebuleon is a richly detailed sci-fi RPG made with the idea that sci-fi settings can be playable and somewhat believable with eight major races in the core¸ Nebuleon gives you the tools to make more and let them out into the vast unknown of space.
The first Sci-Fi system offered from HinterWelt Enterprises complete and ready to be played. This rules engine is simple to follow and easy to role play in. The galaxy of Nebuleon is filled with millions of races some friends and many foes. Play characters from the Free Traders Guild to the Andromedaen Marines. A setting built on free web expansions and including ten races included with the core rules.