The Expanse Wiki
The Expanse Wiki

The Expanse Roleplaying Game is an Expanse-themed tabletop RPG. It was originally projected to release digitally in November 2018 with a physical release in January 2019.[1] However, the digital version was not released until March 2019 and a physical version was released on May 21, 2019.[2]

It exclusively includes a short story by James S. A. Corey, titled "The Last Flight of the Cassandra".


The game was launched as part of a Kickstarter by Green Ronin Publishing. Less than 24 hours later, it had well surpassed its goal of $US30,000, reaching over $US194,000. Built around the Adventure Game Engine rules used by Green Ronin's other tabletop games, the RPG tasks players with putting themselves into the simmering conflict between Earth, Mars, and the Belt, taking on a variety of roles, from combat operatives to diplomats and venturing out into the stars.[1]

The Expanse RPG is set between book 1 and 2. As readers may recall, there is an 18-month gap between the events of Leviathan Wakes and Caliban's War it was decided that'd be the baseline for the RPG. Future books in the gameline covers the events of the later novels[3].


The Expanse Roleplaying Game comes in a standard edition rule book and a special edition which is a Kickstarter exclusive version of the RPG. Rulebook includes To Sleep Perchance to Dream, an adventure which starts out on Tycho Station.


Game Master's Kit[]

The Expanse Game Master’s Kit provides essential tables and references for game-play on one side and evocative artwork on the other. It also includes 4 quick reference cards that put the stunts and actions, a combat tracker that to write on, a set of pre-generated player characters, and a complete adventure, The Ganymede Insurance Job, which takes place primarily on Tycho Station and Ganymede.



The Expanse RPG Quickstart is a free PDF to start The Expanse RPG campaign that includes everything from the first game except and has condensed rules to help learn how to play with six pre-generated characters. The Quickstart contains the adventure Cupbearer, which is set on Ganymede.


RPG Quickstart guide cover

Salvage Op[]

Salvage Op is an introductory adventure for The Expanse Roleplaying Game only available as a PDF. It was developed for use in introducing players to the game at various gaming conventions and provided to Kickstarter Backers as a bonus adventure for supporting the development of the game. This adventure is set in the Asteroid Belt.

Salvage Op

Abzu's Bounty[]

Abzu’s Bounty is the first campaign that features a series of six full-length scenarios designed for a new crew of characters in The Expanse Roleplaying Game. They embark on a series of adventures, from a fateful discovery in the rings of Saturn to acquiring their own ship to a deadly confrontation that could change the course of history for the entire solar system.

Abzus bountyRPG

Ships of the Expanse[]

Ships of The Expanse is a collection of ship drawings including interior layout for UNN, MCRN, and civilian ship types.[4]

The Expanse is vast, and traversing the space between worlds in the solar system requires a ship. For a crew, a ship is freedom, home, safety, and a source of income, but also a source of responsibility and often debt. Out in space, other ships are potential targets, allies, or threats. The Ships of the Expanse offers details on many of the kinds of space ships characters in an Expanse game might encounter, or perhaps even own. From shuttles and racing pinnaces to lumbering ice-haulers and massive warships, the sourcebook describes them all. Ships of the Expanse also features information on space stations and new rules for maintenance and repair, buying and selling cargo, new stunts and hazards, and much more.[5]
ShipsoftheExpanse RPG

Beyond the Ring[]

Beyond the Ring is a source book guide that takes players to the Ring space or on any of the 1373 new systems. It is separated in five chapters with detailed rules for each.

A detailed guide to everything beyond the Sol Ring and much, much more. Besides pages of descriptions and data for new worlds, Ring space, and Medina Station, you’ll find rules for creating your own planets and systems. You’ll also find rules for an entirely new way of playing The Expanse by creating and managing your own colonies[6]
BeyondtheRing RPG

Secrets of Lemuria[]

Secrets of Lemuria is an eight page adventure PDF written by Steven Kenson.

Secrets of Lemuria is a short adventure for The Expanse Roleplaying Game intended for a crew of four to six 1st to 3rd level characters. The characters are hired to escort a journalist to Medina Station meet with a scientist who claims to have made a remarkable discovery on a world called Lemuria. Upon arrival at Medina, the crew learn that the scientist has been abducted. Who took her, and what are their plans for her? The crew must search Medina station in the hopes of finding her before its too late. This adventure works well as a one-shot or can easily be inserted into an existing campaign.[7]
SecretsofLemuria RPG

Trades of The Expanse[]

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Trades of The Expanse is a PDF series that details the occupations and professions players can explore in The Expanse RPG. Each PDF includes info on creating characters who practice a specific trade, game systems for handling their jobs, new rules content such as specializations and equipment, and adventure hooks and ideas for the GM to craft tie-in stories.

Bounty Hunter[]

Trades of The Expanse: Bounty Hunter is the first of the series. It looks at the practice of bounty hunting in the setting, including its relative legality, the types of bounties, and the clients offering them. It provides guidelines for bounty hunters looking for work, and the ways in which they find it, from standing bounties to agency assignments. It also looks at the bounty hunting process from start to finish; from getting the job, to tracking the target, to getting paid.[8] It's a 15 page PDF guide.

TotE BountyHunter

Planetary Surveyor[]

Trades of The Expanse: Planetary Surveyor is the second of the series. Planetary surveyors are the trailblazers of the 24th Century—the first to explore new worlds, or even the first to set foot upon them. Where scouts do their work from a ship, planetary surveyors are often called to get up close and personal: land the ship, drive a four-wheeler or boat around to get the lay of the land, wrestle a six-eyed flying shark, then set up camp while the drones do a bit of terrain mapping. However, even though some surveyors have a reputation as rugged survival experts, make no mistake: they do their job with science!

TotE PlanetarySurveyor


Trades of The Expanse: Scout is the third of the series. Scouts are the eyes and ears of humanity. In Earth’s past, scouts were the ones to look at what’s over the next hill, travel across the country to find the source of the river, and peek through a spyglass into the enemy camp to count their troops. In the era of the Epstein Drive, much is still the same: scouts still look for things, though their focus is much farther away. They look at what’s around that gas giant, travel through ring gates to find habitable new worlds, and peek through a probe’s scan of a pirate asteroid base to count their ships.

TotE Scout


Trades of The Expanse: Journalist is the fourth of the series. Journalists pride themselves on keeping humanity honest by speaking truth to power, bringing information to the masses, and exposing dirty secrets to public scrutiny. Their mission is more important than ever in a time when humanity is scattered across the Sol system and seeded on worlds beyond the Ring. The teeming masses and vast distances that make up the human experience also make it easy for the cruel and corrupt to hide their dirt. That’s where journalists come in—to find the truth and bring it to light—and hopefully snag a dedicated following in the process.

TotE Journalist


Trades of The Expanse: Journalist is the fifth of the series. Entertainers shine brightly wherever they can be found. They bring a spark of hope and warmth to even the darkest and coldest asteroid of the Belt, often shining a light on the pain and suffering of those who are most neglected through art, theater, and music. Entertainment helps keep people sane on the long journeys through the vastness of space. Wherever humans can be found, even on the smallest space station or the furthermost planet beyond the rings, you’ll find entertainers playing music, singing, performing plays, filming, writing poetry and fiction, and so much more.

TotE Entertainer

The Sol System[]

The Sol System: A Sourcebook for The Expanse RPG is an upcoming reference book expected to release on September 12, 2023.

As the pressure rises and the exodus through the ring gates continues, opportunities abound for shrewd crews willing to take risks on Earth, Mars, and in The Belt. The changes brought about by the discovery of the protomolecule continue to disrupt the status quo, and tensions between the factions are white hot. Sol System provides information on the governments, corporations, and factions that vie for power and influence, along with expanded rules for trade and running corporations and other organizations. For players, there is new equipment and technology, including cyber and bioaugmentation, and expanded rules for Belter, Earther, and Martian characters. This beautifully illustrated sourcebook opens new ways to play and build characters, and exciting new details on humanity’s homes. Sol System also offers a plethora of new adventure opportunities—political intrigue, spies, strange cults!—and sets the stage for the forthcoming Free Navy Conflict.[9]
The Sol System-low-res-flat cover


  1. 1.0 1.1 kotaku - The Expanse Is Getting A New Tabletop RPG, Thanks To A Wildly Successful Kickstarter by James Whitbrook, July 29, 2018 at 7:00 am
  4. Polygon - The Expanse RPG is getting a big book of ships — here’s an exclusive look By Charlie Hall Sep 21, 2020, 2:40pm EDT
  5. Green Ronin Online Store - Ships of the Expanse
  6. Green Ronin Online Store - Beyond the Rin
  7. Green Ronin Online Store - Secrets of Lemuria
  8. Green Ronin Online Store - Trades of The Expanse: Bounty Hunter
  9. Google Books - Sol System: a Sourcebook for the Expanse RPG by Kate Baker, Christine Beard, Keith Garrett, Steve Kenson, Ian Lemke, Brian McDaniel, Jason Mical, Pete Woodworth; Green Ronin Publishing, Feb 28, 2023

See also[]

External links[]

  • Green Ronin Publishing - Download (GRR96600e_TheExpanseQuickstart.v.1.2.pdf)


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Green Ronin Online Store

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