Assembling the ancient hydraulic city...
Drag to orbit around your chosen point. Right-drag to pan. Scroll to zoom. WASD or arrow keys translate across the terrain; Shift moves faster.
Shortcuts: Space pause/resume · R roofs · X underground · P pipes · 1–9 jump to landmarks · Escape close help.
The model is an educational hydraulic approximation with volumetric node storage, positive-head conduit flow, valve throttling, losses and consumer demand. Not an engineering design tool.