Elevator Algorithm Game

Press Run to watch your algorithm drive the building.

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waiting waited a while waited too long

▲ ▼ which way a rider wants to go · ▸ a stop the car is planning

Reference approaches & comparison spoilers

Stuck or just curious? Here are the classic elevator-scheduling strategies. Drop any one into the editor to run and tinker with it, or compare them head-to-head on this level. (You'll learn the most by trying your own idea first.)

Or watch two side by side: vs

Runs entirely in your browser — no server, no network. Your code runs in a sandboxed Web Worker with a timeout watchdog, so an infinite loop ends the run with a message instead of freezing the page. Scored locally across several fixed seeds.

Elevator Algorithm Game

You run the elevators 🛗

A / B compare