Yes. There's no account, no watermark and no limit on downloads.

Does it work in Unity, Godot and Unreal?

Yes, all three import OBJ. The model is in meters with its base at the origin, the material library points at the palette texture for color, and the normals in the file are already flat, so there's nothing to fix after import. Unreal works in centimeters, so set its import scale to 100.

Why one palette for every model?

So a whole scene can share one material. Every tree, and later every rock and building, points at the same texture, which lets the engine batch them together. Recolor a block in the texture and everything that uses it changes. Every color the builder proposes has a block of its own, so it exports exactly as you see it. A color you pick yourself moves to the nearest block, usually by a few percent, and the 3MF keeps it exact.

Free · no login · OBJ, STL, 3MF

Low poly trees, built to your measurements

Pick one of 24 species and the builder proposes a whole tree. Then change whatever you like: the trunk, the boughs, the foliage, with the triangle count on screen the whole time. When it looks right, download it for Unity, Godot, Unreal or a 3D printer. It's free, and the models are yours to use.

Build a tree See the species

Oak · the tree the builder proposes

Twenty-four species

Choosing a species gives you a finished tree to start from, with that species' height, bark, branching and foliage. The sliders only go as far as the species allows, so you can't turn a birch into an oak by accident. Here are eight of them at their defaults.

A low poly silver birch tree made with PolyMason

Silver birch6 to 11 m · 888 triangles

Oak7 to 12 m · 312 triangles

A low poly pine tree made with PolyMason

Pine7 to 12 m · 132 triangles

A low poly cherry tree made with PolyMason

Cherry4 to 7 m · 2,930 triangles

A low poly acacia tree made with PolyMason

Acacia3 to 8 m · 1,069 triangles

A low poly willow tree made with PolyMason

Willow7 to 11 m · 830 triangles

A low poly Italian cypress tree made with PolyMason

Italian cypress6 to 12 m · 610 triangles

A low poly baobab tree made with PolyMason

Baobab7 to 14 m · 2,695 triangles

See all 24 species

What comes out

You get one zip. It has the tree at three levels of detail and, if you select them, the same tree as a sapling, young, dead, as a stump, felled, and chopped into logs a character can carry. There are billboards for the far distance too. Below is the oak from the top of the page, as exported.

The same low poly oak, LOD0 — **LOD0**312 triangles

The same low poly oak, LOD1 — **LOD1**276 triangles

The same low poly oak, LOD2 — **LOD2**200 triangles

The oak's billboard, the front picture — **billboard, front**4 triangles

The oak's billboard, the side picture — **billboard, side**the same four

The PolyMason palette: the full spectrum as blocks, one texture for every model — **the palette**3,821 colors, one material for every model

The same low poly oak, sapling — **sapling**80 triangles

The same low poly oak, young — **young**160 triangles

The same low poly oak, mature — **mature**312 triangles

The same low poly oak, dead — **dead**204 triangles

The same low poly oak, stump — **stump**16 triangles

The same low poly oak, felled — **felled**312 triangles

The same low poly oak, chopped — **chopped**140 triangles

Why use a builder instead of a pack

Your tree isn't in anyone else's game

The oak from a popular pack shows up in a lot of games. The one you build here is the height you asked for, with the boughs you chose and your colors, at a triangle count you picked while watching it change.

The extras packs leave out

Packs rarely ship levels of detail or billboards, and almost never the same tree dead, felled or cut into logs. Here every tree can export with three levels of detail, billboards, a young version and a sapling, a dead version, a stump, a felled trunk and a pile of logs.

It imports right the first time

Models are in meters and stand on the ground at the origin. Flat normals are in the file, and there's one material on one small palette texture. You shouldn't need to rescale it, move its pivot or fix its shading.

Read before you import

These guides cover what usually goes wrong when a low poly model goes into a game engine. They use the builder's exports as examples, but they apply to any model.

Flat shading in Unity for low poly modelsWhy a low poly model goes smooth when it lands in Unity, what the importer's Normals and Smoothing Angle settings do, the three places you can fix it, and how to keep the colors flat as well. Three articles underneath go into the detail.
The OBJ file format, explained for game enginesWhat's in an OBJ file and its MTL, what it leaves out (units, axes, colors), how it compares with FBX, GLB and STL, and how to import one into Unity, Godot and Unreal so the model doesn't arrive tiny, sideways or gray.
LODs and billboards for low poly modelsHow levels of detail work, what triangle counts are reasonable for low poly trees, rocks, buildings and characters, how to make the levels so the swap doesn't pop, billboards and impostors for the far distance, and the LOD setup in Unity, Godot and Unreal.
Free low poly assets for GodotWhere to get free low poly models that work in Godot 4, what each source's license allows, and which formats to prefer. It also covers importing an OBJ or GLB with its colors and flat shading intact, adding a collider, and scattering a forest.
How to make low poly trees for gamesThe method behind a low poly tree that looks like its species: the silhouette that identifies it, the trunk, where the boughs leave and how the trunk divides, foliage as a few closed meshes, two greens, triangle budgets, and the export a game engine wants. The same steps work in the builder and by hand in Blender.

Formats and engines

OBJ + MTLSTL3MFGLB nextUnityGodotUnrealBlender3D printers

You download a zip. The OBJ is one mesh with one material. Its colors come from the PolyMason palette, a single texture of 3,821 color blocks that every model from here shares, so a scene full of them is still one material. Flat normals are written into the file. There's also STL for printing and 3MF with the exact colors. GLB is next. Everything is in meters and stands on the ground at the origin, which is what Unity and Godot expect. Unreal wants a scale of 100 on import, and the OBJ guide shows where to set it.

Everything you build here is yours. Use it in any project, commercial or not, with no attribution required.

More than trees

Trees came first. These have builders of their own now, built the same way:

Trees Rocks

The rest are in progress and launch one at a time.

Questions

Is it free?: Yes. There's no account, no watermark and no limit on downloads.
Can I use it in a commercial game?: Everything you build here is yours. Use it in any project, commercial or not, with no attribution required.
What does it export?: A zip with OBJ, STL and 3MF. The OBJ is one mesh with one material on the shared PolyMason palette texture, with flat normals in the file. The 3MF keeps the exact colors. Models are in meters and stand on the ground at the origin. If you select them at the export step, you also get lower levels of detail, younger and dead versions, a stump, a felled trunk, chopped logs and billboards. GLB is next.
Does it work in Unity, Godot and Unreal?: Yes, all three import OBJ. The model is in meters with its base at the origin, the material library points at the palette texture for color, and the normals in the file are already flat, so there's nothing to fix after import. Unreal works in centimeters, so set its import scale to 100.
Why one palette for every model?: So a whole scene can share one material. Every tree, and later every rock and building, points at the same texture, which lets the engine batch them together. Recolor a block in the texture and everything that uses it changes. Every color the builder proposes has a block of its own, so it exports exactly as you see it. A color you pick yourself moves to the nearest block, usually by a few percent, and the 3MF keeps it exact.