Coriolis – The Great Dark Core Rules

Jules Verne-meets-deep-space exploration in a standalone sci-fi RPG

Coriolis – The Great Dark is Free League’s new take on star-faring discovery and intrigue: navigate the Slipstream aboard mighty Greatships, delve ancient ruins, and outwit the schemes of Ship City as you race to unlock the mysteries of the Lost Horizon. Inspired by 19th-century expeditions, deep-sea diving, and pulp archaeology, it blends wonder with peril at every turn. 

What’s inside

– 308-page hardcover core rulebook. 
– Create your crew of Explorers with talents, vehicles, and crew maneuvers. 
– Rules for delving into the unknown, traveling the Slipstream on Greatships, and surviving wild planets. 
– A detailed gazetteer of the Lost Horizon, including the eleven systems of the Charted Sphere and the asteroid-metropolis Ship City. 
– Intro adventure: The Black Ziggurat, a ready-to-run mission into a forbidden ruin.  – Optional solo tools and rules to explore the Lost Horizon on your own. 

Why you’ll love it

– Powered by the streamlined Year Zero Engine for fast, tense d6 dice-pool play. 
– A strong focus on exploration, teamwork, and awe-filled sci-fi vibes that critics are calling a fresh, atmospheric journey.