Lay streets. Pick a brush and drag across the land: Grid, Diamond, Curved, Radial, Hex, Old town and Fan each lay their own pattern. New streets join the ones already there, and Character (C) makes one a market street, a pedestrian street or a tree-lined one. Scroll to zoom, right-drag to turn the view.One finger draws; pinch with two to zoom and turn the view.
Build on them. Go over the blocks your streets enclose with the Develop brush (F), or develop every waiting block at once. Upzone, Park and Style change what stands, and Landmark puts a church, a theatre or a school where you want one.
Walk your streets.Look around (R) and fly with WASD; press Space twice to land and walk.Tap Look around under Colonies, then drag to look and push the stick to fly or walk.
Everything keeps itself in this browser as you go.Ctrl+Z undoes.