hard science

plausible technologies

realistic cultural development

a vast setting

10,000+ years of historical development

realistic exobiology

a myriad of strange characters and cosmic stories

Welcome to Orion's Arm, a scenario set thousands of years in the future where civilization spans the stars. Godlike ascended intelligences rule vast interstellar empires, and lesser factions seek to carve out their own dominions through intrigue and conquest. Out beyond the edge of civilized space and the human-friendly worlds, adventure awaits those prepared to risk all.Come join us in this ever-expanding collective worldbuilding effort. Within the vast universe that is Orion's Arm you will find: