🛷 Gift Night: Sleigh Route and Load Planner

A calm winter-night logistics puzzle: pack a sleigh under weight and room limits, plan the route through a snowy village, and leave each gift on the doorstep when the window light goes out, before dawn. Real equations for traction on snow, team power and fatigue, Poisson window lights, knapsack and travelling-salesman routing.

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