A city builder, one parcel at a time.

Concrete archetypes with a goals, a verb set, and a relationship to the city.

Terraform and sketch roads in a dedicated survey mode, then subdivide blocks into parcels.

2D heightmap-based elevation model with contour visualization for road placement and site grading.

Sketch a rough polyline, pick a road class, tweak speed and lanes — the editor fits a curvature-bounded arc spline live.

Every right-of-way is a arc spline; roads and rail are bundles of one or more of them.

three.js with WebGPU for the 3D world, Lit + plain HTML/CSS for the GUI shell.

Road surfaces and markings are generated on the GPU from base colors, noise, and lane data — no baked textures.

Graph-based infrastructure networks: power, water, sewage, waste. Directional flow from supply to demand.

Zoning is the player’s macro lever; RCI-style supply/demand drives growth.

Readable, toylike-but-grounded look; one dynamic sun/sky, no baked lighting.

Buildings are generated per parcel from footprint, zone, and density — not hand-placed props.

A visible, sampled population of commuting agents under the macro economy layer.

Day/night, seasons and weather as shared drivers for lighting, materials and demand.

Council review, ballot measures, development hell, and a mayor whose favorability is a real number on the city HUD.

Shortlist and feel-brief for the game’s working title.