Click the green "New Domain" button on the Domains & Regions page to start one, or the green "Edit" button on a domain card. The form is organized into a few sections.
Main Settings
Give the domain a Name (for example Andover or Camelot). Game Masters also get a Secret? toggle — when on, the domain and all of its regions are hidden from players.
Link to Place
Optionally connect the domain to a Place you've created with the Link to Place dropdown. Linking pulls in that place's header image as the domain's image, and adds a card on the profile that links back to the place. There's also a Location field for any extra detail.
Domain Census Stats
These four built-in stats — Size, Population, Consumption, and Treasury — are always available. Fill in whichever apply to your game; any you leave blank simply won't appear on the domain's profile.
Custom Domain Stats
If you've created any custom stats in the Domain Stats Admin, they appear here as value fields so you can record this domain's numbers (Loyalty, Unrest, and so on). The "Domain Stats Admin" button opens that admin in a new tab — see Domain Stats. You can create the domain first and add stat values later.