🚜 Farm Valley Builder: Low-Poly Barn, Crops and Animals

Build a low-poly farm valley: fence pastures, plant wheat, maize, potatoes and sunflowers by degree-days, let the tractor sow and harvest, keep happy cows, sheep, hens and a horse, and sell at the market. Real equations: growing-degree-days, logistic canopy, Doorenbos yield response, Wood lactation curve, ASABE field capacity.

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