Coriolis: The Great Dark, the New Edition of Free League’s Original Sci-Fi RPG, Coming August 12 – Now On Pre-Order

A beautifully-illustrated core rulebook, GM screen and dice set beckon players into The Great Dark

Stockholm, Sweden (August 7, 2025) | Following a buzzing pre-release event at Gen Con 2025, Free League Publishing announced today that Coriolis: The Great Dark, the new edition of Free League’s original sci-fi RPG, will be officially released everywhere on August 12. Pre-orders are available now in the Free League webshop, with immediate access to a complete PDF.

Inspired by 19th century expeditions, deep sea diving and pulp archaeology, Coriolis: The Great Dark is a roleplaying game about exploration and intrigue. Join dangerous expeditions, navigate the Byzantine schemes of Ship City, and hunt for the keys that unlock the mystery of this Lost Horizon.

Coriolis: The Great Dark Core Rulebook Key Features:

  • Rules for Creating Your Crew of Explorers: With upgrades such as talents, vehicles, and crew maneuvers to enhance campaign play
  • Rules for Delving into the Unknown: Traveling on Greatships through the dangerous Slipstream, and trekking across wild planets
  • A Detailed Gazetteer of the Lost Horizon: the eleven systems of the Charted Sphere and the asteroid-metropolis of Ship City
  • The Black Ziggurat: An introductory adventure that will take you deep into an ancient ruin on a distant moon
  • Tools and Rules for Solo Play: Making it possible to explore the Lost Horizon all by yourself

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About Free League Publishing

Free League Publishing is a game studio and publisher dedicated to speculative fiction based in Stockholm, Sweden. Voted Fan Favorite Publisher at the ENNIES in 2020, 2021, 2023, 2024, and 2025, Free League has published a wide range of award-winning tabletop roleplaying games and acclaimed art books set in strange and wondrous worlds.

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