We'll walk you through your first build on the grid — place a wall, rotate it, add a floor, ruin it, then export. Takes about a minute.
OpenLOCK Compatible — licensed via Printable Scenery
Wall finish: Weathered
Pick which tile types the STL and fused exports below include. Unchecked types are skipped by both.
Just the placement data as JSON — no geometry. Always free, reopen it any time.
Your first exported piece (the selected tile, or the last one placed) is full-quality and free. After that, unlock the Gothic pack.
Merge every placed tile into one watertight STL — handy for a display print or a resin plate. Uses the same free-piece gate as STL export above.
One glTF/GLB file with every tile, positioned and coloured — drop it straight into Foundry, Tabletop Simulator or any VTT. Always free.
Send this exact layout to Formada3D and we print + ship it — no printer needed.
Continue to formada3d.com/shopAnyone with this link opens a read-only view of your current layout.
| Click tile, click floor | Place |
| Click placed tile | Select |
| Rotate | R |
| Drag a selected tile | Left-drag |
| Nudge selected tile | Arrow keys |
| Delete selected | Del / Backspace |
| Orbit | Right-drag |
| Zoom | Scroll |
| Wall run (drag a straight line, auto end caps) | W |
| Room wizard (drag a rectangle: door side, windows, floor, 2nd storey, ruin) | O |
| Cycle a placed wall's type (straight/door/window/ruined) | Click it again |
| Ruin it | U |
| Undo / Redo | Ctrl/Cmd+Z / Shift+Z |
| Command palette | Ctrl/Cmd+K |
| Photo mode | P |
| Moonlit mood | M |
| Snapshot | Shift+S |
| Deselect / close | Esc |
| This panel | ? |
This editor is built for a mouse and a bigger screen. You can orbit and preview your build here, but for placing, editing and exporting tiles, open this link on a desktop or laptop.
Beta · Founders offer
The Terrain Builder is in beta: the editor and the Gothic ruins set work end to end, and new tiles land weekly. The first 100 people on the founders list get 30% off the full Gothic pack and print-to-order when it launches.
Formada Terrain Builder is a free browser tool for tabletop wargaming and RPG terrain. Lay out gothic ruins on a 25.4 mm grid, add floors, columns, rubble, stairs and two-storey walls, ruin them with one click, then export support-free STL files for your 3D printer or have Formada3D print the layout for you in Melbourne.
Designing, saving and sharing layouts is free, and your first exported STL piece is free. The full Gothic pack export and print-to-order are paid. During the beta, the first 100 founders get 30% off at launch.
Yes. The Room wizard (key O) — drag a rectangle on the grid for four walls with auto-corners, plus options for a doorway (and which side), windows every N pieces, a flagstone floor fill, a second storey and a ruin pass. Wall run (key W) drags a straight, axis-locked wall with end caps in one go. Click a placed wall a second time to cycle it through straight → doorway → window → ruined (or use the Cycle button in the inspector). Both wizards commit as a single undo step.
No. Every tile in the library prints support-free: walls stand on end, floors and rubble lie flat, columns stand upright. The export modal shows the orientation and a plate-packing preview.
Yes. Formada3D holds an OpenLOCK commercial licence issued by Printable Scenery. Tiles sit on the OpenLOCK grid and the connector switcher offers OpenLOCK sockets, magnets or studs.
Any FDM printer. Bed presets for the Bambu Lab A1 mini (180 mm), P1S/X1C (256 mm) and H2C (350 mm); larger layouts are split across plates automatically.
The editor and the Gothic ruins set are complete — most wall pieces ship in both a weathered and a clean finish now (the Weathered/Clean toggle above the library) — but the tile library is still growing weekly and a few features (more sets, drag-move) are still landing. Layouts you save now keep working after launch. Watch the library panel for a "New this week" ribbon when fresh tiles land.
Made in Melbourne by Formada3D. Questions: info@formada3d.com.