A
Streets that connect
Road networks with real junctions, crosswalks and sidewalks — the skeleton everything else hangs on.
3D locations, built by your AI agent: Words in. Worlds out.
A free 3D editor for Windows and macOS. Describe a place — Claude Code or any MCP agent lays the roads, raises the buildings and sets the light while you watch. Then export to any engine.
GLB · FBXExports to
Unity
Unreal Engine
Blender
Godot
01Demo
One description. A whole downtown block.
A real screen recording, sped up. The agent lays out the streets, raises the blocks and tunes fog and light — every step lands in the viewport as it happens.
02Capabilities
A whole place, not a pile of props.
Everything a location needs, built in the right order from one plain-language brief.
B
Buildings with facades
Cottages, brick blocks and glass towers, set along the streets with real facades.
C
Furnished interiors
A living room with a stove, a kitchen and lamp light. A whole house, one room or a single prop.
D
Terrain, trees and light
Hills, vegetation, sky and the right time of day, tuned until the frame reads.
E
Your library, one drag away
Sign in to browse your HiGen3D library and community models, then drop them into the scene.
F
Works offline
The editor and its bundled models, materials and skies run without a connection.
G
Any MCP agent
Claude Code is the usual start. Anything that speaks MCP can drive the scene.
03Control
The agent builds. You stay in charge.
It all happens live in a real editor. Mark where to build and where not to, stop the agent, move things by hand, undo any step.
-
Live viewport
Each step lands in 3D the moment the agent takes it.
-
Scene tree
Every object the agent made — select, hide, lock or move it.
-
History
Every action is logged. Undo any step.
-
Your library
HiGen3D and community models, ready to drag in.
-
Copy connect command
One click puts the connect command on your clipboard.
04Workflow
From install to engine in four steps.
-
Install Cuberta
Free, no account. Installer or portable build for Windows, disk images for Apple Silicon and Intel Macs.
-
Connect your agent
Press Copy connect command in the app and paste it into your terminal. Claude Code or any MCP client.
-
Describe the place
Write it the way you would brief a level designer. The agent builds it while you watch.
-
Export to your engine
GLB or FBX with textures included. Drop it into Unity, Unreal, Blender or Godot.
05Specs
The spec sheet.
Everything worth knowing before you download.
Download- Price
- Free — no account, no trial, no subscription
- Version
- 1.0.0
- Windows
- 64-bit Windows 10 or 11 · installer or portable
- macOS
- Apple Silicon or Intel
- Graphics
- Any GPU from the last decade
- Agent
- Any MCP client — bring your own agent and model access
- Export
- GLB and FBX, textures included
- Engines
- Unity, Unreal Engine, Blender, Godot — anything that reads glTF or FBX
- Offline
- The editor, bundled models, materials and skies
- Account
- Optional — only to browse your HiGen3D library and community models
- Code signing
- Not yet — confirm the first launch in SmartScreen or Privacy & Security
06FAQ
Questions people ask
Short answers. The blog goes deeper.
BlogIs Cuberta free?
Yes. Cuberta is free to download and use on Windows and macOS, with no account, no trial period and no subscription. The bundled models, materials and skies are included.
Which AI agents work with Cuberta?
Any MCP client. Claude Code is the one most people start with, but the app exposes a standard Model Context Protocol server, so anything that speaks MCP can drive the scene. You bring your own agent and your own API access.
What can the agent actually build?
Whole locations — road networks with junctions and sidewalks, blocks of buildings with real facades, terrain, vegetation, street furniture and lighting. It also builds single objects: a house with a furnished interior, a room, a prop. If you can describe it, it will attempt it.
Which engines can I export to?
GLB and FBX come out with textures included, which covers Unity, Unreal Engine, Blender, Godot and anything else that reads glTF or FBX.
Do I need to know 3D modeling?
No. You describe the place in plain language and correct the agent when it goes the wrong way. Knowing your engine's import settings helps more than knowing how to model.
How is this different from Blender MCP?
Blender MCP hands an agent the whole of Blender, which is powerful and slow — the agent spends its turns writing Python against a general-purpose modeller. Cuberta is a purpose-built editor for locations: the tools it exposes are already about roads, buildings, terrain and placement, so the agent works at that level instead of rebuilding it every time.
Does Cuberta work offline?
The editor and its bundled content run offline. The agent itself needs whatever connection your model provider requires, and signing in is only needed to browse your HiGen3D library.
What are the system requirements?
64-bit Windows 10 or 11, or macOS on Apple Silicon or Intel. Any GPU from the last decade will do. The builds are not code-signed yet, so Windows SmartScreen and macOS Privacy & Security will ask you to confirm the first launch.
07Blog
From the blog
How teams use AI agents for level design, and what to watch out for.
All articlesAI City Generator: Roads First, Then Blocks, Then Buildings
Generated cities look right from above and fall apart on foot. Road hierarchy, block sizes, frontage, junctions — the numbers that make a city read as a city.
Import a GLB Environment Into Unity and Make It Playable
A generated GLB or FBX location lands in Unity in minutes. Making it playable takes import settings, colliders and lighting — here is the whole path.
Importing an AI-Generated Level into Unreal Engine 5
You have a GLB of a whole district and a UE5 project. What to check on import: scale, Nanite, Lumen, collision, and why one big actor never streams.
08Download
Start building.
Version 1.0.0 · Free · Windows and macOS
Windows
64‑bit Windows 10 or 11.
macOS
M‑series Macs take Apple Silicon, older Macs take Intel.
- Any GPU from the last decade will do.
- The builds are not code‑signed yet: Windows SmartScreen may ask you to confirm the first launch, and macOS asks you to allow the app under Privacy & Security in System Settings.