Start Here
Three doors into Mar de Oro
Pick the door that fits. Every path leads back to the same Golden Sea, so nothing here locks you out of anything else. You needn't know the whole world to begin. Discover it through the people you meet, the loyalties you choose, and what follows from your decisions.
New to tabletop roleplaying?
Enter the Golden Sea
Learn how tabletop roleplaying works, how players and the Game Master create the story together, and what play feels like in Mar de Oro.
Read the Prelude
Already familiar with tabletop roleplaying?
Begin with Welcome to Aeon
Begin directly with the world, its central conflicts, and the kinds of characters and campaigns Mar de Oro supports.
Read Welcome to Aeon
Learn the world
The recommended sequence: Prelude, Welcome to Aeon, the world, then build a character and dip into the Living World or the Quickstart.
- Prelude: Enter the Golden Sea
- Welcome to Aeon
- The World of Aeon
- Create a Mar de Oro character (Character Builder)
- Use the free interactive tools
- Tales of Mar de Oro: Native Rules (first-party game)
- System-Neutral Adaptation ladder
- Aboard the Aurora Ventus (Living World)
- Quickstart: The San Telmo Incident
Run a session
Want to play tonight? Quickstart: The San Telmo Incident. Run a complete 3–5 hour introductory session with six pregens, player handouts, clocks, multiple clue routes, active factions, and the optional 2d6 Resolution Bridge. Want to build your own session? Open the GM Hub, choose a rules layer — the first-party Native Rules, an external conversion, or the ultralight Bridge, and use the preparation tools as needed.
- Tales of Mar de Oro: Native Rules (first-party game)
- Quickstart: The San Telmo Incident
- GM Hub · Spoilers
- Prepare a Mar de Oro session (Session Prep Builder)
- System-Neutral Adaptation ladder
- The Sealed Archive
- The Engineer's Rules
Explore the setting
Follow Éterlumin through physics, culture, and politics, then wander the glossary or the archipelago.
The Living World
Short articles on ship life, craft, culture, signals, politics, and documents, readable in any order.
Browse the Living WorldHow Mar de Oro Plays
Understand the setting's approach to incomplete knowledge, factions, consequences, and system-neutral play.
Read the chapter