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Walkable demo

Underground mine tunnel

Walk a 50 metre mine drift built from the Underground Mine and Shaft Works pack: steel-arch, timbered and shotcrete sections, two widened chambers, a cross junction with two working faces, a loco and ore carts on track, a loader, a bolting rig and a refuge chamber.

About

One drift from 24 of the pack's 63 models, in the hall preset with dark walls and dusk light; the drift modules bring their own walls and roof.

You start at the mouth of the drift and walk north up the track. Timbered sections lead to a widened chamber with the ore pass raise collar, then the cross junction with the loader in the west branch, the bolting rig in the east and a working face at the end of each. The battery loco and its ore carts stand on the track beyond, then the second chamber with the refuge chamber, the personnel carrier and the power box under steel arch sections, and the ventilation airlock door closes the drift.

This pack ships animation clips: the loco, the carts, the loader, the bolting rig and the airlock door play as you come within three metres and rewind when you leave.

Every piece here is a published model from the pack, placed by hand. Walk with the keys or touch, and approach a piece to see it move if it has animation. Colliders, navigation and gameplay are yours to add.

Points of interest

Use with an AI agent

Copy this prompt into your AI chat to rebuild the layout, then describe what to change.

Rebuild the "Underground mine tunnel" demo scene from the Underground Mine and Shaft Works pack in my project.

Layout (JSON, every placement with its CDN URL): https://3dassets.dev/api/v1/demos/underground-mine-and-shaft-works
Pack manifest: https://3dassets.dev/api/v1/packs/underground-mine-and-shaft-works
Demo page: https://3dassets.dev/demos/underground-mine-and-shaft-works

- 56 placements of 24 models; units are metres, +Y up, rotation is yaw in degrees about +Y
- Spawn at (1, 0, 23.8) facing 180 degrees; eye height 1.6 m
- Licence: CC0 1.0 Universal (no attribution required)
- Loading: three.js GLTFLoader, one load per distinct model, cloned per placement; no decoders required

Also available as JSON or Markdown, and via the MCP server.

Common questions

How do I use Underground mine tunnel with my AI development tools?
Press "Copy for AI agent" above and paste the prompt into Claude Code, Cursor, Codex, GitHub Copilot, ChatGPT or any other coding assistant. The prompt carries the direct CDN URL, the real-world size, the licence and the loading notes, so the assistant can fetch the scene and place it in your project without you writing the loader yourself. For a permanent connection, add the 3DAssets.dev MCP server to your tool with one command (for Claude Code: claude mcp add --transport http 3dassets https://3dassets.dev/mcp) and the assistant can then search the whole catalogue, fetch files and read the usage snippets on its own.

MCP server setupGuide for AI agents

How do I get started?
Walk the scene here with the keys or touch to see how the pack fits together. To build it yourself, download the pack with the button, then copy the "Copy for AI agent" prompt: it links the layout JSON, which lists every placement with its position, rotation and CDN URL, so an assistant connected to the MCP server can rebuild the scene in your engine and change it to order.

MCP server setup

Which game engines and tools can I use Underground mine tunnel with?
Anything that reads glTF, which today means all of the major ones: three.js and React Three Fiber on the web, Godot 4, Unity, Unreal Engine 5, Blender and the model-viewer web component. Every model in the scene is a self-contained binary glTF (.glb) with textures embedded, so each is one file to import and no plugin, converter or decoder to install first.
How do I import this scene into Unity, Godot, Unreal or Blender?
Unity: install the glTFast package (com.unity.cloud.gltfast) from the Package Manager, drop the .glb into Assets and drag the prefab in, or load it at runtime from the CDN URL. Godot 4: copy the file into the project folder and the editor imports it as a scene you can instantiate. Unreal Engine 5: File > Import with the built-in glTF importer, which converts the axes for you. Blender: File > Import > glTF 2.0. Units are metres with +Y up in the file, and every importer above handles the conversion to its own axes automatically.
Can I use Underground mine tunnel in a commercial game, and do I need to credit anyone?
Yes to commercial use and no to credit. Every scene on 3DAssets.dev is released under CC0 1.0 Universal, which places it in the public domain: use it in a paid game, an app, a film or a client project, modify it, redistribute it, and put nothing in the credits. A link back is welcome but it is entirely your choice.

CC0 licence text

Can I load it from the CDN instead of downloading it?
Yes. The pack behind it has a permanent URL on cdn.3dassets.dev that is CORS-enabled and never changes content, so you can pass it straight to GLTFLoader, glTFast or model-viewer in production and cache it as hard as you like. Downloading is only needed for engines that import from disk.
Is the demo itself a file I can download?
No, and it does not need to be. A demo is a layout of the pack's published models composed in your browser from the CDN, so there is no extra file to fetch. Download the pack for the models, and take the layout JSON linked above for the placements: together they are the whole scene, and an AI agent can rebuild it from those two links.
Can I change the scene, or add gameplay to it?
Yes. The layout is plain data in metres, so move, add or remove placements freely in your own engine. Colliders, navigation and gameplay are yours to add: the demo shows what the pack looks like assembled, and your game decides how it plays.

Models in this demo

Steel arch set drift section (Underground Mine and Shaft Works)

Steel arch set drift section (Underground Mine and Shaft Works)

A 4 m drift section supported by four rolled steel arch ribs on foot plates with steel lagging channels spanning between the ribs and two tie rods.

@3dassets1.3k tris
Widened drift chamber (Underground Mine and Shaft Works)

Widened drift chamber (Underground Mine and Shaft Works)

A 6 m by 8 m widened chamber module for parking, pumping or storage, with arched drift openings at both ends, a heavier steel roof frame and a raised concrete equipment plinth.

@3dassets636 tris
Straight mine drift 4 m (Underground Mine and Shaft Works)

Straight mine drift 4 m (Underground Mine and Shaft Works)

A 4 m straight hard-rock drift module with a 3.2 m by 3.0 m arched clear section, thick rock shell, drainage ditch, resin rock bolts, a wall cable tray, compressed air and water lines and a bulkhead light.

@3dassets1.0k tris
Drift cross junction (Underground Mine and Shaft Works)

Drift cross junction (Underground Mine and Shaft Works)

A 4 m flat backed four way intersection with arched drift openings on every side, four steel corner columns, a ring beam grid and roof bolts.

@3dassets1.0k tris
Timbered drift set section (Underground Mine and Shaft Works)

Timbered drift set section (Underground Mine and Shaft Works)

A 4 m drift section supported by four three-piece timber square sets with capping plates, angle braces and timber lagging packed against the back.

@3dassets856 tris
Drift dead end working face (Underground Mine and Shaft Works)

Drift dead end working face (Underground Mine and Shaft Works)

A 4 m drift module closed by a blasted rock face with a drilled round pattern, a broken muck pile at the toe and a face inspection light. One open drift port.

@3dassets1.6k tris
Ventilation airlock door (Underground Mine and Shaft Works)Animated

Ventilation airlock door (Underground Mine and Shaft Works)

A concrete bulkhead filling the drift section, with a framed vehicle opening closed by two named door leaves, a personnel door beside it and an airflow warning light.

@3dassets348 tris
Narrow gauge track panel 4 m (Underground Mine and Shaft Works)

Narrow gauge track panel 4 m (Underground Mine and Shaft Works)

A 4 m panel of 750 mm gauge track: a ballast bed, timber sleepers on 0.6 m centres and flat bottom rail with the rail head 0.28 m above the drift floor.

@3dassets172 tris
Battery haulage locomotive (Underground Mine and Shaft Works)Animated

Battery haulage locomotive (Underground Mine and Shaft Works)

A four wheel battery haulage locomotive for 750 mm gauge, with a battery box, a canopied operator bay, controllers, buffers and named wheels.

@3dassets1.9k tris
Side tipping ore cart (Underground Mine and Shaft Works)Animated

Side tipping ore cart (Underground Mine and Shaft Works)

A side tipping mine car of about one cubic metre on four flanged wheels, with a named tipping body, drawbars and buffers.

@3dassets1.5k tris
End tipping ore cart (Underground Mine and Shaft Works)Animated

End tipping ore cart (Underground Mine and Shaft Works)

An end tipping mine car with a squared box body hinged at the rear sill, on the same four wheel underframe.

@3dassets1.5k tris
Underground personnel carrier (Underground Mine and Shaft Works)Animated

Underground personnel carrier (Underground Mine and Shaft Works)

A low profile underground personnel carrier with a driving position, two transverse bench rows under a canopy, side guards and four mine tyres.

@3dassets2.5k tris
Load haul dump loader (Underground Mine and Shaft Works)Animated

Load haul dump loader (Underground Mine and Shaft Works)

An articulated low profile load haul dump loader with a named lift boom, a named toothed bucket, a transverse operator compartment under a canopy and four low profile mine tyres.

@3dassets3.5k tris
Roof bolting rig (Underground Mine and Shaft Works)Animated

Roof bolting rig (Underground Mine and Shaft Works)

An articulated roof bolting rig with a named telescopic bolting mast and rotation head, a bolt and resin carousel, a mesh rack and a canopied operator seat.

@3dassets3.6k tris
Underground refuge chamber (Underground Mine and Shaft Works)

Underground refuge chamber (Underground Mine and Shaft Works)

A six metre steel refuge chamber on skids with a sealed door, a viewing port, external breathing air cylinders, a scrubber cabinet, a roof beacon and an entry step with handrails.

@3dassets700 tris
Ore pass raise collar (Underground Mine and Shaft Works)

Ore pass raise collar (Underground Mine and Shaft Works)

A tipping point over an ore pass raise: a concrete collar around a 2 m square opening, heavy grizzly bars, a kickboard kerb, a side chute and a control stand.

@3dassets288 tris
Power distribution box (Underground Mine and Shaft Works)

Power distribution box (Underground Mine and Shaft Works)

A flameproof power distribution box on steel skids with a bolted front cover, an isolator handle, four cable glands with trailing cables and two indicator windows.

@3dassets528 tris
Explosives day box (Underground Mine and Shaft Works)

Explosives day box (Underground Mine and Shaft Works)

A lockable steel explosives day box with a hinged lid, edge banding, a hasp, a timber base and a hazard label.

@3dassets224 tris
Drill steel rack (Underground Mine and Shaft Works)

Drill steel rack (Underground Mine and Shaft Works)

A steel rack of seven drill rods with thread protectors, a shelf of button bits and a stencilled length label.

@3dassets924 tris
Survey station and tripod (Underground Mine and Shaft Works)

Survey station and tripod (Underground Mine and Shaft Works)

A survey tripod carrying a total station over a floor spad, with a tribrach, adjustable legs, foot spikes and a marker plate.

@3dassets440 tris
Mine warning sign (Underground Mine and Shaft Works)

Mine warning sign (Underground Mine and Shaft Works)

A hazard sign on a steel post in a concrete foot, with a hatched border, a text panel and a smaller instruction plate below.

@3dassets204 tris
Ventilation duct run 4 m (Underground Mine and Shaft Works)

Ventilation duct run 4 m (Underground Mine and Shaft Works)

A 4 m run of 1.1 m rigid ventilation ducting with bolted flanges, roof hanger brackets and reflective marker plates.

@3dassets756 tris
Cable tray run 4 m (Underground Mine and Shaft Works)

Cable tray run 4 m (Underground Mine and Shaft Works)

A 4 m ladder cable tray on wall brackets carrying two power cables and a communications cable, with rung spacing and marker plates.

@3dassets408 tris
Compressed air line 4 m (Underground Mine and Shaft Works)

Compressed air line 4 m (Underground Mine and Shaft Works)

A 4 m run of 180 mm compressed air pipe on wall brackets with bolted flanges, an isolating valve with a handwheel and a hose drop to a coupling.

@3dassets594 tris