All features
Population/Design doc

Migration

Moving people between provinces

A planned second population system that would actually move people between provinces every month — chasing opportunity within a country, or crossing borders entirely. Designed, not yet built: the relevant laws exist today, but nothing acts on them yet.

ScreenshotProvince panel with a net-migration figure and an arrow to the province people are leaving for.

Design doc

A second way provinces change size

Alongside normal population growth, migration would be the other thing changing a province's headcount month to month — people moving from a struggling province to a thriving one inside the same country, or leaving one country for another entirely, pulled by opportunity and pushed by how open the receiving country is to letting them in.

This isn't in the game yet. The immigration and emigration laws you can already pick from today only grant flat national bonuses — nothing yet reads them as instructions to actually move people.

Design doc

Where people would actually go

People would move toward provinces that score better on wealth, safety, education, and opportunity, and away from crowded, unstable, or war-torn ones. A province wouldn't get penalized for being popular right up to a natural capacity — only beyond it would it start pushing newcomers away.

Design doc

Doors, half-open or closed

How mobile people are
How much of a province's population is realistically willing to move in a given month.
How open a country is to letting people leave
An exit-visa regime can shut this down almost entirely.
How attractive a country is to newcomers
Prosperity, stability, and immigration policy all play a part.

Design doc

Just headcounts, for now

Migration would move people and nothing else at first — not political loyalty, not culture. Migrants would simply adopt local politics on arrival. But a closed border wouldn't be free: bottling up people who want to leave would show up as unrest at home.