IRON HARBOR JUNCTION

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IRON HARBOR JUNCTION

A detailed interactive voxel-art model train layout in your browser.

bywick

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Description

A complex Three.js simulation of an HO-scale model railroad built as a single HTML file. It features moving trains, a functional turntable, a day-night cycle with dynamic lighting, and physical levers and switches for user interaction.

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Details

Why this is interesting: Highly impressive one-shot generation of a functional 3D voxel environment with interactive UI and animated systems.
Attributed to: wick@holytrinity
Built with: Fable 5.1 Fable 5 Redwood AI
Links: claude.ai
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Tags: #three.js #voxel-art #simulation #railroad

Discovered: X
First posted: X · Sep 2, 2026
Listed: Added 13d ago
Build: Moderate
Models: Strong

Prompt

Build a single HTML file that opens in Chrome and shows an animated model train yard in voxel art, using Three.js from a CDN and no outside assets. Make it look like an HO-scale layout on a wooden table in a room, seen from the eye height of a person standing at the front edge. Fill the layout with a busy rail scene: a main line loop, a yard, an engine terminal with a turntable, industries, a harbor, a station, a town, and any other areas you think make it interesting. Keep trains running, add machines and vehicles that move, give it a day-night cycle with glowing lights, and put physical controls on the front of the table, such as levers to change train speed and buttons or switches for the lights and other actions, that the viewer can drag and click with the mouse. Make it colorful, detailed, and pretty, and make sure nothing clips through anything else.

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