How it works

Four steps from a fresh install to a scene in your engine. The agent does most of the work in the third one.

Screen recording, sped up. Claude Code connected over MCP.

Install Cuberta

Download the installer or the portable build for Windows, or the disk image for your Mac. It is free and you don’t need an account.
Download
Connect your agent

Open Cuberta and press Copy connect command in the top right corner. Paste the command into the terminal where your agent runs. Most people use Claude Code; any MCP client works.
Describe the place

Write it the way you would brief a level designer: what the place is, what is in it and the time of day. The agent builds it in the viewport while you watch, and you can stop it, correct it or move things yourself.

For example
A small town with a ring road, cottages, street lamps and sunset light.
Export to your engine

Export GLB or FBX with textures and open the scene in your engine.

Opening the export in your engine

Unity

FBX imports as it is. For GLB, add the glTFast package first.
Unity guide
Unreal Engine

FBX imports as it is. GLB goes through the built-in glTF importer.
Unreal guide
Godot

GLB is the format Godot prefers. Drop the file into the project.
Godot guide
Blender

File → Import → glTF 2.0 or FBX.
GLB or FBX?