Trigger disaster:
One finger: use tool · Two fingers: pan & zoom · Roads carry power · Zones need power, water (pipes) and a road within 3 tiles.
Goal: grow a city. Zones only develop when they have power, water and a road within 3 tiles.
Controls — one finger / left mouse: use tool · two fingers / right-drag: pan & pinch-zoom · wheel: zoom · space: pause · ↶ undoes your last action · overlays (top bar) show pollution, crime, value, traffic, power, water and coverage.
Disasters are on by default; turn them off or trigger one from ☰. Your city autosaves and works offline once installed.