Tilemason 3D: Tile-Based 3D Scene Builder

Tilemason 3D turns flat tiles into 3D scenes. Build on a grid, then break the grid: place tiles at any angle, sculpt hills, drop in prefab trees and props, and export to GLB or OBJ for your game.

Runs offline from one HTML file in Chrome or Edge, or as a Windows app. No install, no account.

Build

• Floors, walls, slopes, cross sprites, blocks and triangle cuts on a grid
• Free tiles: any position, any angle. Place on surfaces, flat, or upright
• Terrain sculpt: raise, lower, smooth, flatten
• Select tool: move, rotate, scale, duplicate groups
• Prefabs: save a selection (tree, house, props) and stamp it with random turn and size
• Multiple tilesets in one scene, each with its own tile size and filter
• Vertex colors: tint and top-to-bottom gradients, UV crop for partial tiles

Make it look good

• Animated tiles (water, fire, flags) with fps control
• Day, Sunset, Night and Overcast looks, soft shadows, fog and sky
• Perspective or orthographic camera, Top / Front / Side / Iso

Export

• GLB with textures, vertex colors and animated tiles as glTF animations
• OBJ + MTL + textures (zip) and OBJ only
• Scale and center options
• Projects save as .tilemason.json

Works with Godot, Unity (glTFast), Unreal, Blender, three.js and anything that reads glTF or OBJ.

In the download

• Editor (index.html) in the main zip, and a separate Windows app zip
• Two demo scenes (Meadow village with terrain and 20 prefabs, Pixel village), as projects and GLB
• Two demo tilesets (32 px painted, 16 px pixel art)
• README, LICENSE, CHANGELOG

Good to know

• Terrain bends grid floors; it is not a free-form mesh sculptor.
• Shadows, fog and sky are for the editor view and are not exported.
• The Windows app is unsigned: SmartScreen may ask you to click More info, then Run anyway.
• Needs a mouse (or trackpad with right-click) and keyboard. Not for touch screens.
• Tested in Chrome. Firefox and Safari are not tested.
• Your scenes and exports are yours, for commercial use too. See the license.
• The editor code was written with the help of AI. The demo tilesets are generated from code.