🏙️ Realistic City Builder — Zoning, Roads, Power, Water and Budget Growth Lab

Paint roads, residential/commercial/industrial zones, services, power and water on a grid and watch a Blender-modelled city grow under an RCI demand model, logistic population, BPR traffic assignment, a 24-hour power balance and a monthly budget. An experiment finds the housing-to-jobs split that maximises the sustainable population and checks it against the closed-form answer.

3D · Three.js / WebGL renderer · 60 FPS target · runs fully client-side, no install