Unibuilder
A downloadable tool
Unibuilder is a full in-editor modeling toolkit for Godot 4: blockout and greybox levels, cut collision meshes, and build simple game-ready props directly in the 3D viewport.
- Draw-in-viewport shape tools: cube, plane, cylinder, cone, prism, stairs, curved stairs, arch, door, sphere, torus, pipe, poly shape. Parameters stay editable in case you mess up.
- Object / Vertex / Edge / Face editing with loop/ring/grow/similar selection, hover preselect, and cross-mode selection conversion.
- Full op suite: extrude, inset, multi-segment bevel, bridge, weld, connect, insert loop/vertex, subdivide, merge, detach, fill hole, and a modal cut tools
- Auto per-face UVs plus a full 2D UV editor (projection, sew/split, islands, copy/paste, texel normalize), multi-material meshes with drag-and-drop assignment, smoothing groups, vertex paint with a dual-texture blend shader.
- Booleans on Godot's CSG kernel.
- Game-ready output: Collider/Trigger entity volumes, convex/trimesh/ramp auto-collision, bake to plain MeshInstance3D with lightmap UV2s, OBJ+MTL / glTF export, and "Convert to Unibuilder" for existing triangle meshes.
- Pure GDScript, no C#/.NET required. Every action is a single editor undo.
Release
Due for release in September 2026
Free demo
The demo includes every modeling feature. Only baking and export are reserved for the full version, and everything you build in the demo carries over when you upgrade.
Requirements & install
Godot 4.7 or newer, any platform. It might work on less than 4.7 but I haven't tested that. Extract the zip into your project root and enable the plugin in Project Settings. No C#/.NET build of Godot needed.
Support
Report bugs and request features on the public issue tracker.
Comments
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cant wait for this plugin it looks very high quality, very much needed for some planned projects of mine :D
same. i have a ton of low poly points of interests to make on my map (a bunch of random buildings that need to be unique, like scrap yard, mechanic shop..) and i figured this would be nice to use to build each one in
Thank you for doing this <3
You should take a look at Hammer from Source, TrenchBroom, Scythe for Unreal Engine, and Anvil Level Design for Unity or the same named addon for Blender to get some inspirations of features! (Umodeller and Probuilder on Unity too of course)
Those are terrible, especially Hammer. Please avoid. RealtimeCSG for Unity is similar to this and UModeller is not bad (like Sketchup).
More permanent non-destructive procedural settings for edges would be good, and grouping/unioning and prefabs/repeatable parts.
Valve Hammer Editor, TrenchBroom and J.A.C.K are goated to make maps for counter strike 1.6
he said it’s gonna release in September. dude, it’s September already and we saw nothing.
the video is like 5 days old and it's only the 3rd, so he might just be cooking behind the scenes right now, making sure everything is working. stable.
at least that is what we are all hoping :)
yeah.true. I’m just too excited for it. it’s godsend add-on.
"in September" does not mean
"September 1st". Give him a minute.
true.
Man, I would buy this day 1, would love to beta test
cant wait to use this to make quake-like maps
Love it, can"t wait to try indeed.
bro it's september when are you releasing this just take my money please 😭
Can't wait to try this !
Looking forward to the beta so i can have a play with this for my current project <3
I'm very open to beta testing!
i was originally just blocking out my maps in blender but this will help a lot
I would really like to try this out for the game I am working on. it looks amazing!!
Getting it day one! Would love to try out the beta
Hello, I would love to test the demo
Please let me beta test!
same, same
i was literally just dreading making all of the buildings in my new game project... so much content and now i think this is the solution.
I will report back with my time with the demo (when it is ready) and am awaiting the full release <3
i am 99% certain im buying this lol
Hi, this looks cool and I'm interested in this, but I would like to know your AI policy? Was generative AI used to make this?
I'm keen to test it. Already running a fork with heavily modified CSG nodes to try and improve their UX, but someone else doing it would be *much* better ;)
I am so excited for this!
When is the release ? I'm so hyped
Just saw your videon on youtube, would really like to test unibuilder out!
I would love to make my first game in godot with unibuilder!
Would love to test as well
This looks fantastic! I'll throw my hat in the ring for beta testing, this seems perfect for my current project.
Would love to beta test this!
Hi, your tool looks incredible!
Two questions, if I may.
1st, is there a demo I could try? Can't seem to find it anywhere.
2nd, whats the pricing gonna be approx?
Anyways looks amazing and I cant wait to test it!
Demo will be out in a few days. I think I heard it will be about $20 for the full version.
That would be in the same ballpark as https://www.aseprite.org/ , nice!
Hi, i would like to beta test this level editor.
I would also really like to try this please :)
Would love to beta test!
Would love to beta test!
Please consider making it compatible with Godot 4.6 as that's what's supported by W4 for console ports right now. Also I want to beta test.
I NEED this! I'd love to beta test, and will definitely be buying when it's available.
Interested in trying the beta. Thanks!
This is so cool, I'd love to try the beta!
would love to try the beta
I love that!! I would love to beta test <3
aweeeesome! I'd love beta access, only got a couple rooms built for my game right now
looks awesome, keen to try the beta!