What if you could build a completely unique dungeon for every adventure, without learning 3D modelling?
That’s exactly what BeamDown: Dungeons delivers.
Join the Kickstarter Pre-Launch here!
Our latest Kickstarter introduces a brand-new fantasy addition for BeamDown, our browser-based terrain builder that lets you create custom 3D printable scenery for tabletop RPGs and fantasy wargames.

Whether you’re running Dungeons & Dragons, Frostgrave, or any other 28-32mm tabletop game, BeamDown gives you the freedom to design your own dungeon layouts, export unlimited STL files for personal use, and print them at home.
Build Your Dungeon Your Way
Unlike traditional STL terrain sets, BeamDown isn’t just a library of files.
It’s an interactive browser-based builder where you assemble modular components into completely original creations.

Here’s how it works:
- Lay out foundations and floor tiles
- Add walls, doorways and decorative details
- Choose your preferred modular connection system (magnets, OpenLock, stacking pegs, etc)
- Save your project and add to the BeamDown community library
- Export STL files with no export limits
✅ No CAD software.
✅ No design experience.
✅ No subscriptions.
If you can drag, drop and click, you can build custom terrain.
A Growing Terrain Building Platform
BeamDown first launched on Kickstarter in 2022 with its sci-fi terrain builder.
Since then, it has grown into a continually expanding platform featuring more than 3,400 modular assets across 30+ content bundles, regular feature updates, and a passionate community helping shape future development.
The new Dungeons range brings an entirely new fantasy environment to BeamDown while remaining compatible with existing sci-fi assets, allowing users to create everything from classic dungeons and ruined castles to strange hybrid worlds.
More Than Just Dungeon Walls
The Dungeons Core Set includes over 200 modular assets, including:
- Foundational wall sections
- Floor tiles
- Doorways with removable doors
- Wall sidings
- Decorative trims
- Toppers
- Floor barriers
- Multiple modular socket systems including OpenLOCK, magnets and pegs
Additional fantasy packs let you expand your library with ruins and other themed scenery, while Kickstarter stretch goals will unlock even more content throughout the campaign.
Share and Remix Community Creations
One of BeamDown’s most popular features is the Blueprints system.
Blueprints allow BeamDown users to share dungeon layouts using simple codes. If you own the required assets, you can instantly load another user’s creation, customise it however you like, then export your own version for printing.
It’s a fantastic way to discover new layouts, remix ideas and build upon the community’s creations.
Built by Humans, Not AI
Every piece of artwork, every 3D model, every asset and every line of code in BeamDown has been created by real people.
✅ No AI-generated models.
✅ No AI-generated artwork.
Just handcrafted tools designed specifically for tabletop gamers and hobbyists.
Try BeamDown for Free
Not sure if BeamDown is right for you?
You can explore the platform before backing the Kickstarter with our Intro Builder.
This browser-based demo includes a small collection of sci-fi assets so you can experience how BeamDown works before committing to the full library.
Simply use the code BUILDER during checkout to unlock it for free for a limited time.
Two Kickstarter Pledge Options
The campaign offers two ways to jump in:
- BeamDown: Dungeons – Everything you need to build custom fantasy dungeons.
- BeamDown: Dungeons + Sci-Fi – Includes both fantasy and sci-fi asset libraries, allowing you to combine themes and create virtually limitless terrain layouts.
Join the Adventure
BeamDown continues to evolve through community feedback, regular updates and expanding asset libraries. If you’ve ever wanted complete creative control over your tabletop terrain, this is your chance to build exactly what your adventures need.
Sign up to our newsletter to follow the campaign, or visit the BeamDown page to learn more about how the platform works.
We can’t wait to see what you create.


































































