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Toy Train City on a Table

Toy Train City on a Table is a Three.js scene from a prompt collected by petergpt (collection) (original author unknown); 3dmotion rebuilt it with Claude Opus 5.5 on 2026-11-08.

collected by petergpt (collection) on GitHub · verified 2026-11-08

Verified rebuildRebuild code · MITThree.js CDN · r170Interaction: Drag

Original prompt: petergpt (collection) · GitHub · collected; original author unknown
Model: Claude Opus 5.5
Rebuild date: 2026-11-08
Known limits: From the full-table view the trains read small; the bridge, station and tunnel close-ups only come later in the 52 s tour.
Open demo: Open demo, then press Run

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Prompt collected by petergpt (collection) · original author unknown. Copies include source credit.

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Model: Claude Opus 5.5
Verified: 2026-11-08
Runtime: Three.js CDN · r170
Licence: Rebuild code · MIT
Fix rounds: 5

Known limitationFrom the full-table view the trains read small; the bridge, station and tunnel close-ups only come later in the 52 s tour.

Original prompt

Free · 2,000 characters

Create a dream toy-railway version of London in Three.js: a bright voxel train-table world where little red trains and Tube-like carriages weave through the capital's most famous landmarks. It should feel like the ultimate playroom train…

If you use Three.js, add an import map (before the module script) mapping "three" and "three/addons/" to the same pinned version, and import only via those names. Never reuse identifiers in the same scope - use descriptive variable names.

#### TABLE SETUP
- Let the city sit on a visible playtable or wooden base so the toy-train format is obvious.
- Use elevated tracks, short viaducts, tidy tunnels, and small station platforms.
- The overall layout should be readable from a slightly top-down three-quarter camera.

#### LANDMARKS
- Include Elizabeth Tower / Westminster, Tower Bridge, the London Eye, St Paul's, The Shard, and Battersea.
- Landmarks should be tightly packed around the tracks so trains constantly pass recognizable icons.
- Add small parks and river sections to stop the table feeling too crowded.

#### TRAINS + TRACKS
- Run multiple train loops at once: classic bright-red toy trains, Tube-inspired trains, and maybe a tiny DLR-style shuttle.
- Use branching points or track switches that visibly reroute trains.
- Add a few cutaway tunnel sections so the train movement is easy to follow.

#### STYLE
- Keep everything crisp, bright, and toy-clean.
- Red, blue, yellow, and fresh green should dominate rather than grey realism.
- No dark station lighting, no smoky atmosphere, and no heavy grime.

#### CONTROLS
- Track-switch toggles.
- Train count / speed slider.
- Tunnel cutaway toggle.
- Follow-train camera plus a reset overview.
- Camera presets: full table, bridge crossing, station close-up, tunnel slice.

#### TECHNICAL
- Instanced sleepers, rails, trees, windows, and repeat props.
- Keep train motion smooth and predictable.
- Target >=55 FPS and clamp devicePixelRatio <= 2.

Prompt collected by petergpt (collection); the original author is unknown on GitHub. github.com/petergpt/3d-prompt-collection/blob/HEAD/README.md#prompt-35. Copies include this credit.

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01 Single file runs

Claude Opus 5.5 · Claude Code · 2026-11-08 · 5 fix rounds

Simplified: Three hand-laid loops with two working points instead of a dense network. Landmarks are chunky voxel caricatures, and the tunnel cutaway is a single hill on the Tube loop.

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Known issue: From the full-table view the trains read small; the bridge, station and tunnel close-ups only come later in the 52 s tour.

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Toy Train City on a Tablepetergpt (collection) · Dioramas & voxel scenes

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Collected by: petergpt (collection) · original author unknown
Original post: github.com/petergpt/3d-prompt-collection/blob/HEAD/README.md#prompt-35
Fetched: 2026-11-08
Licence: Prompt: credited link (Shared publicly by the author; full text with credit, removed on request). Rebuild code: MIT
Evidence: Collected by petergpt (collection); the original author is unknown. Shown with a link back. The rebuild code is 3dmotion’s own
Machine-readable: e/toy-train-city-on-a-table.md · index.json

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Toy Train City on a Table

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