The second major update significantly expanded the game's depth: Sweet Transit Early Access Preview - LadiesGamers

: Citizens (Laborers to Craftsmen) advance as you meet their increasingly complex needs for goods like fish, bread, and beer, which in turn unlocks new steam or diesel technology. "Forging Forward" Update Highlights

: Unlike other city builders, there are no roads for commerce; every person and resource moves by rail.

: Workers aren't local—they must be transported from residential villages to industrial sites (like sawmills or coal mines) via dedicated passenger trains.