National Transit v0.1.6 - Update — National Transit Steam update #1152022

This update centres on making the economy realistic and a rewritten population / urbanisation model, plus a lot of map-control and UI improvements. Wherever a change affects gameplay rules or how you do something, there's a summary below. Population & Urbanisation (more realistic simulation) Cities rise and fall. People now migrate: connected, prosperous, job-rich places attract them; poor, isolated ones lose them and shrink. Grow a town into a city. Assign a development policy and connect the town by road to trigger an in-migration surge — a few thousand people can become several hundred thousand over a few decades, then plateau. Without roads it barely grows. Five new development policies for settlements with less population (smallest to largest target): Rural Revitalization, Tourism Resort, New Town, Coastal Trade, and Special Economic Zone. Lists and the city detail now show Populati...