Raiders of the Republic

If you like the genres History (Alternative), Science Fiction (Space Opera), Culture , this game is for you.

If you like the mechanics Attribute/Stat Based (STR, CON, PER, etc), Progression Tree (Skills, professions, magic abilities, etc.), Class Based (Pilot, Wizard, Scientist, etc), Skill Based (buy or gain skills), Level Based (Earn XP and level up), Dice (Primarily d20) , you will enjoy this game.

This game falls under the category: Sourcebook (rules/options to enhance play), Campaign Setting (game world).