Alder Valley Rail Atelier by @nickfromlater
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Simulation, Sandbox, Cozy · GPT-6 Astra

Alder Valley Rail Atelier

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Works on phones and computers

A steam engine called Nightingale pulls a passenger train around a model railway set on a table in a room lined with bookshelves. You set its regulator, sound the whistle and call a station stop, and watch from the room, trackside, a follow camera or the cab, or jump to views of the viaduct, old town, harbor, summit and engine yard. Build mode adds cottages, a church, a windmill, a station, a signal cabin and other pieces, lets you reshape the track itself, and saves your layout in the browser. There are no goals or scores: it is a toy railway to tinker with, and the page also points to the creator's larger follow-up, Whistlevale. Works on phones and computers.

How the creator made it

The creator built the railway with Astra and Three.js, starting with a brief request for a high-end model layout. They followed up by asking Astra to improve the layout and put it in a room. They added “Please return full HTML after” because Astra sometimes interpreted the request as one for an image. In a later update, they added a miniature drive-in and let Astra choose the opening films.

From their post on X ↗ and 2 other posts on X (1 ↗ 2 ↗).

The game belongs to @nickfromlater. Preview recorded by us. Made this game? Here's how we list it.