OPAJ Volume 5 released! Today finally sees the release of the fifth volume of one-page adventures! The collection includes all 6 adventures from the 2025 one-page adventure jam in a single PDF. The theme of the 2024 jam w…

OPAJ Volume 5!
Finally! The fifth volume of one-page adventures! The 6 adventures from the 2025 one-page adventure jam in a single PDF. “Echoes of the Builders” challenged the community to create adventures about the consequences of human choices …
expanserpgcommunity.com/2026/04/06/o...

Live-stream today @ 7pm EST (01:00 CET)!

Watch link: youtube.com/live/WctJbYu...

@greenroninpub.bsky.social @ianlemke.bsky.social @jmroaming.bsky.social @yesimtroy.bsky.social

#opaj25 #theexpanse #expanse #theexpanserpg #rpg #ttrpg

Live-stream today @ 7pm EST (01:00 CET)!

Watch link: youtube.com/live/WctJbYu...

@greenroninpub.bsky.social @ianlemke.bsky.social @jmroaming.bsky.social @yesimtroy.bsky.social

#opaj25 #theexpanse #expanse #theexpanserpg #rpg #ttrpg

Live-stream of The #Expanse #RPG Friday 6 February @ 7pm EST (01:00 CET).

Watch link: youtube.com/live/WctJbYu...

@greenroninpub.bsky.social @ianlemke.bsky.social @jmroaming.bsky.social @yesimtroy.bsky.social

#opaj25 #theexpanse #expanse #theexpanserpg #rpg #ttrpg

Tonights live-stream has been postponed due to a winter storm and sudden loss of power.

Watch this space for an update on the live-stream with Ian Lemke running the winner of the 2025 One-Page Adventure Jam!

Tonights live-stream has been postponed due to a winter storm and sudden loss of power.

Watch this space for an update on the live-stream with Ian Lemke running the winner of the 2025 One-Page Adventure Jam!

Tonights live-stream has been postponed due to a winter storm and sudden loss of power.

Watch this space for an update on the live-stream with Ian Lemke running the winner of the 2025 One-Page Adventure Jam!

Actual Play for The Expanse RPG: The Ghost Ship of Theseus, by Josh Romig YouTube video by Green Ronin Publishing

Today/tonight: youtube.com/live/WctJbYu...

Live-stream today @ 19:00 (7pm) CET (that's 1pm EST / 10 am PST).

Watch here: youtube.com/live/WctJbYu...

@greenroninpub.bsky.social @ianlemke.bsky.social @jmroaming.bsky.social @yesimtroy.bsky.social
#opaj25 #theexpanse #expanse #theexpanserpg #rpg #ttrpg

This Friday!

@ 19:00 (7pm) CET (that's 1pm EST).

Link to follow.

@greenroninpub.bsky.social @ianlemke.bsky.social @jmroaming.bsky.social @yesimtroy.bsky.social

#opaj25 #theexpanse #expanse #theexpanserpg #rpg #ttrpg

Tense up the narrative of space combat! Joshua has introduced new house-rules for space combat in The Expanse RPG. It enhances the space combat gameplay and flow. This hack simplifies mechanics while adding plot protection, and includes …

New house-rules enhancing space combat in The Expanse RPG. It simplifies mechanics while adding plot protection, including fleet combat. A great addition for GMs looking to enrich their game.
expanserpgcommunity.com/2026/01/14/t...
@jmroaming.bsky.social #theexpanserpg #expanse #rpg #ttrpg

A one-pager offering tips for writing one-page adventures by Josh romig. The guide is valuable for GMs who wants to write their own one-page adventure, whether for the annual jam or for their own archive. #theexpanserpg #theexpanse #rpg #ttrpg
expanserpgcommunity.com/2025/12/25/o...

Wellerman – series I Joshua Romig has been actively creating content this year, we are no releasing his first Wellerman misadventures series, which includes “Phoebe’s Song” and “Ghost Ship of Th…

Joshua Romig has been actively creating content this year, we are now releasing his first Wellerman misadventures series, which includes "Phoebe's Song" and "Ghost Ship of Theseus," and more. #theexpanserpg #theexpanse #rpg #ttrpg
expanserpgcommunity.com/2025/12/25/w...

Musings on more nuanced gravity rules for The #Expanse TUE allowing characters to move more effectively in the gravities of their habitats, moving towards picking native gravity rather tying it to cultural or faction belonging. #theexpanserpg #rpg #theexpanse expanserpgcommunity.com/2025/12/20/g...

The Expanse Transport Union Edition PDF rulebook is out It updates lore for the decades after Babylon's Ashes, maintains original rules, improves equipment details and ship combat
expanserpgcommunity.com/2025/12/19/t...
@greenroninpub.bsky.social @ianlemke.bsky.social #theexpanserpg #theexpanse #rpg

For the month of November, we're giving away the RSI Apollo Medivac w/ Olympian Paint & Lifeforce Gear pack!

Enter Here: knctd.me/giveawayNove...

Get more entries here: twitch.tv/Kanected

JM Romig has been at it again! He is launching his own concept too: Wellerman-stories. This is the first of these adventures, shared for everyone's enjoyment. This first Wellerman adventure is: Phoebe's Song!
expanserpgcommunity.com/2025/10/24/p...
#expanse #ttprg #theexpanserpg #theexpanse

Winner of the 2025 One-Page Adventure Jam! After more than a week of voting, a winner emerged: Ghost Ship of Theseus by Josh Romig! Congratulations Josh! This is a story about some very unnerving unintended side effects of Builder tech on human minds and ships. Check out the winning adventure and the other five submissions from this year's jam over on Facebook! Soon these will join the four previous years' jams in a collected volume here.

Winner of the 2025 One-Page Adventure Jam!

After more than a week of voting, a winner emerged: Ghost Ship of Theseus by Josh Romig! Congratulations Josh! This is a story about some very unnerving unintended side effects of Builder tech on human minds and ships. Check out the winning adventure and…

Donate to Support Green Ronin in Critical Legal Defense, organized by Nicole Lindroos My name is Nicole Lindroos, co-owner of Green Ronin Publishing. Diamond … Nicole Lindroos needs your support for Support Green Ronin in Critical Legal Defense

A serious situation is unfolding for Green Ronin. They need immediate legal help to protect their assets after Diamond’s bankruptcy. Please consider donating or sharing to support them. Every bit helps! gofund.me/13942a1a4 #ttrpg

2025 OPA Jam – post mortem The deadline for 2025 One-Page Adventure Jam "Echoes of the Builders" has come and gone. Six submissions this year, from puzzles to potential planetary doom, the dangers of human curiosity, altered minds, and moral choices. The voting has started on Facebook. In about a week we should know the winner and soon thereafter some dates will be decided for the live-stream of the winning submission.

The deadline for 2025 One-Page Adventure Jam has come and gone. Six submissions this year!
#theexpanserpg #theexpanse #expanse #rpg #ttrpg #opaj25

Two days left! 🥳🚀🪐

expanserpgcommunity.com/one-page-adv...
#theexpanse #expanse #theexpanserpg #rpg #ttrpg #opaj25

Less than a week left of the jam! Get your one-page adventures uploaded or sent in!
expanserpgcommunity.com/one-page-adv...
#theexpanse #expanse #theexpanserpg #rpg #ttrpg
@greenroninpub.bsky.social @ianlemke.bsky.social

A bit over a week left of the 2025 One-Page Adventure Jam!

Submit your one-page adventure via e-mail here: expanserpgcommunity.com/one-page-adv... or upload it to one of the Facebook groups!
#expanse #theexpanse #theexpanserpg #ttrpg #rpg

The artefacts remember.
Echoes of a vanished intelligence.
🚀 2025 One-Page Adventure Jam — expanserpgcommunity.com/one-page-adv...
#theexpanse #expanse #ttrpg #rpg #opaj25 #theexpanserpg
@greenroninpub.bsky.social @ianlemke.bsky.social

From gates that hum to stations gone silent,
The echoes of alien hands echo across systems.
⚡One-Page Adventure Jam 2025 — Echoes of the Builders
👉 expanserpgcommunity.com/one-page-adv...
#theexpanse #expanse #ttrpg #rpg #opaj25 #theexpanserpg
@greenroninpub.bsky.social @ianlemke.bsky.social

Alien ruins. Human ambition. Dangerous choices.
🛠️Salvage the past. Shape the future.
📄Echoes of the Builders — 2025 One-Page Adventure Jam.
Join in: expanserpgcommunity.com/one-page-adv...
#theexpanse #expanse #ttrpg #rpg #opaj25 #theexpanserpg
@greenroninpub.bsky.social @ianlemke.bsky.social

✨The gates are open.
🚀The Transport Union watches.
🚨In the dark between stars, whispers of the Builders.
Write their echoes: expanserpgcommunity.com/2025/08/31/t...
#theexpanse #expanse #ttrpg #rpg #opaj25 #theexpanserpg
@greenroninpub.bsky.social @ianlemke.bsky.social

Spaceship qualities and damage control Some of the content of this post was originally posted with the spaceship collection update, Here they are again, together with some more untested ideas. Ship Qualities The Couple Reactor and Parallel Reactor qualities do the same thing in different ways. I'd suggest you to choose one to test in your game. I prefer the Parallel Reactors for gameplay reasons, but I can see arguments for preferring "Coupled Reactor".

New homebrewed (and untested!) ship qualities for the Expanse RPG!
#expanse #theexpanse #ttrpg #rpg #theexpanserpg

📡 A signal flickers from a dead world.
⚠️ A gate hums with alien memory.
🎲 Can you turn it into one-page of adventure?
The 2025 Jam is on: expanserpgcommunity.com?p=1891
#theexpanse #expanse #ttrpg #rpg #opaj25 #theexpanserpg
@greenroninpub.bsky.social @ianlemke.bsky.social

The Expanse deals with many existential, social, and political topics. Stories in the #expanserpg can easily reflect these and more. Last year, fans of the #expanse #rpg made some in the #onepageadventurejam @GreenRoninPub @JamesSACorey @TheIanLemke