Open source · Apache-2.0

AI Game Developer (Unity MCP)

MCP tools, agent skills and a command line tool that connect AI assistants to the Unity Editor, and to your finished game.

4.4k stars on GitHub, Oct 2026

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Before you use it

There is an optional cloud sign-in at ai-game.dev for teams. You do not need it to use the plug-in.

Why it's useful

It does the usual editor jobs (scenes, prefabs, materials, scripts, the profiler, screenshots, the test runner) and can also run inside a built game, so you can use a language model for NPC behaviour or poke at a running build. You can add your own tools in C#.

What it needs

Unity Editor (project path must not contain spaces), and Claude Code, Copilot, Cursor, Gemini or another MCP client. Your own AI subscription or API key.