At a hump yard, nobody drives cars to their tracks. The train is shoved over a small hill, the conductor uncouples cars at the crest, and each cut rolls down by gravity onto its own track.
I did this job for 4 years at Kokand station in Uzbekistan. Now I'm a frontend dev, so I rebuilt the yard in 3D and turned it into a game: walk along the train, uncouple where the car colour changes, radio the driver to slow down before single cars.
Free, runs in the browser on desktop and mobile, no sign-up: https://kokand-station-gorka.vercel.app/?lang=en
Would love feedback — especially if anything is confusing in the first minute.
