Campaigns run on Neon Odyssey, Avantris’ science-fantasy space opera built on 5.5e. Setting is the Stardust Rhapsody — a vinyl-record galaxy of aether, Harmony and Cacophony, where adventurers are called Outrunners and work is posted through the Galactic Bounty Guild.
Currently in playtest (v0.1.1): the Outrunner’s Handbook, the Overdrive Expansion and the Cosmic Codex.