Hotpot Loop Sort

Hotpot Loop Sort opens on an illustrated divided hotpot, one half red with chilli and the other filled with pale stock, with slices of beef, mushroom, tofu and cabbage floating around it.

The board puts that pot in the middle and surrounds it with orders. Each is a small plate with a count beside it: three beef rolls, three tofu, three bean curd sheets, three greens and three slices of lotus root.

Three conveyor belts run upward below the pot, each stacked with ingredients waiting their turn. Tapping the ingredient at the front of a lane sends it into the pot, the matching order drops by one, and the queue behind it moves forward.

A level badge, a six-slot counter and a twelve-step progress bar sit above the pot. A bowl-and-chopsticks button waits at the bottom with three uses, for when every lane is showing the wrong thing at once.