CRUX: Universal Roleplaying

from the introduction: CRUX: Universal Roleplaying is a roleplaying game system without a world to call home. But that's where you come in! It can be a world of high fantasy, where dragons soar in the skies and wizards cast devastating spells from lofty, impossible towers. It can be an interplanetary adventure, where pioneers take to the stars in seed ships as they search for new territory to call home. It can be a blood curdling tale of horror, wherein daring investigators struggle against the unspeakable terrors lurking in the shadows at the periphery of civilization. CRUX can be anything you want it to be. It's an engine for generating stories with friends, and we built it as a place to explore our own ideas. If all of this sounds interesting you, CRUX might be your kind of game system as well. Join us; you're among friends. Read on, dream big, and make it yours.