Civil Harbor & Public Transit
When your empire grows beyond a small outpost, people expect more than walls and factories — they expect connection. The civil harbor (a special building at your location) runs public transit lines across your map.
What it is for
Public transit is not military transport and not trade. It is the civilian network that lets new settlers reach your colonies. Once your population on a map passes a certain size, immigration stops unless you operate enough active transit lines with civilian ships.
In short: no running liners → no population growth at scale.
How to use it
- Build the civil harbor at a location (only one such building per site).
- Build a civilian liner at the shipyard and bring it to the harbor.
- Open the harbor panel and start public transit — the system picks a loop of stops across your own locations on the same map (other harbors, well-developed colonies, and similar targets).
- The liner flies a visible route for many hours, then returns. You can recalculate the route or cancel; canceling stops coverage until you start again.
Each map has its own harbor network — liners do not cross to other galaxy maps through wormholes in the basic setup.
Tips
- Plan harbors on your main hub world first.
- Keep at least one liner actively running before you wonder why population froze.
- Pirates may threaten routes later — escorts and defense still matter on civil lanes.
Check the population panel to see how many transit lines you need versus how many are running.