Serve a Crew
Take a meaningful role aboard a ship, expedition, military unit, household, or independent company.
What Play Feels Like
What Do You Do in Mar de Oro?
Join a crew, expedition, household, regiment, investigation, or political cause. Cross contested seas and early air routes. Investigate failures, conspiracies, old systems, and impossible events. Decide what you owe to crown, crew, faith, community, and conscience.
Cross a Contested World
Travel between colonial ports, old roads, frontier settlements, dangerous interiors, and the first air routes.
Investigate the Impossible
Encounter Fortera phenomena, Moon-Affected people, strange creatures, lost structures, political conspiracies, and failures of Éterlumin technology.
Choose Where You Stand
Institutions have interests, limits, and internal divisions. Characters are defined by the loyalties they preserve, revise, or betray.
Where to next
Your path as a player
Read in this order, or skip to whatever you need. Nothing here is required homework.
Step 1
Learn how play works
Enter the Golden Sea walks through an illustrated example of play: choices, dialogue, uncertainty, and consequences at the table.
Read the PreludeStep 2
Meet the world
Welcome to Aeon introduces the Golden Sea, its powers, its faiths, and the kinds of characters and campaigns the setting supports.
Read Welcome to AeonStep 3
Create a character
The Character Builder guides you through ten steps and produces a shareable dossier. No account is required.
Open the Character BuilderStep 4
Fit it to your rules
Mar de Oro is system-agnostic. The adaptation framework converts characters, threats, and vessels into the system your group already plays.
Open the adaptation frameworkPlay tonight
Jump straight in
The San Telmo Quick Start comes with pregenerated characters and needs no preparation from you beyond showing up.
Open the Quick StartGo deeper
Wander the Living World
Short articles on ship life, craft, culture, signals, politics, and documents, readable in any order.
Browse the Living WorldRunning the game instead of playing in it? Start as a Game Master →