Download Unity Hub and install any Unity 2022.3 LTS or newer Editor. Skip if already installed.
2Create Unity project (optional)
Create a new Unity project with Unity Hub, or use an existing one.
3Download installer
Use the Download .unitypackage button above to grab AI-Game-Dev-Installer.unitypackage.
4Import the package
In Unity: Assets → Import Package → Custom Package… and pick the downloaded file.
Prefer a package registry? Add it via OpenUPM instead: openupm add com.ivanmurzak.unity.mcp. See the Unity plugin setup guide for the full deep dive.
02
Connect
Run through the hosted cloud endpoint, or point at your own server.
Cloud
Default
Connect through ai-game.dev using the device-code OAuth flow — no tokens to copy by hand. From the AI Game Developer window choose Cloud, click Authorize, and approve the device code in your browser. Works across firewalls and gives you usage analytics. This is the default and what we recommend for most users.
Custom
Prefer to run everything locally? Point the plugin at your own gamedev-mcp-server instance instead of the hosted endpoint. Your AI client then talks straight to your machine. Client-by-client config snippets live on the MCP endpoint page.
Restart Claude Code after configuring. The new MCP server is only picked up on a full restart of the agent — quit it completely and reopen it (not just reload the window).
04
First run
Open the window, authorize, and try your first prompt.
1Open the project in the Unity Editor, then go to Window → AI Game Developer.
2In the panel, choose Cloud and click Authorize to complete the device-code flow.
3Wait for the status pill to read Ready (green), then connect your AI client.
4Try a prompt like the one below from your AI client and watch it act in the Editor.
Example prompt
Create a new scene with a directional light and a rotating cube, then enter Play mode.