# AI Game Developer — Documentation

AI Game Developer is a free, open-source MCP (Model Context Protocol) platform that lets any MCP-compatible AI agent inspect and drive a real game engine. You install one editor plugin — Unity-MCP, Unreal-MCP, or Godot-MCP — and it exposes that engine's editor operations as AI Tools. This documentation hub links the quickstart, the per-engine install guides, the full tools catalog, the ecosystem of extensions, and the FAQ.

_Last updated: 2026-06-17_

## Start here

- Quickstart (/docs/quickstart): Install the plugin, connect a client, see your first tool call — in about 5 minutes.
- Unity Plugin Setup (/docs/unity-plugin-setup): Full setup — prerequisites, three install paths, verification, AI-client wiring, extensions, troubleshooting.
- Tools Catalog (/docs/tools): Every MCP tool the plugins expose — search, filter, and expand any one for parameters and an example prompt.
- Best Practices (/docs/best-practices): How to make simple, effective AI requests and discover what the agent can do — principles plus per-engine recipes.
- Ecosystem (/docs/ecosystem): Every public piece — plugin, extensions, .NET libraries, the desktop client, and the template.
- FAQ (/docs/faq): Common questions about setup, connection modes, and capabilities.
- MCP endpoint info (/mcp-endpoint-info): Per-client MCP config (Cloud vs Custom / self-hosted).

## Engines

- Unity (/engines/unity): Unity-MCP — the flagship catalog. Unity 2022.3+.
- Unreal Engine (/engines/unreal): Unreal-MCP — Blueprint and C++ authoring/compile. UE 5.5+ (tested on 5.7).
- Godot (/engines/godot): Godot-MCP — C# and GDScript. Godot 4.3–4.5 (mono).

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Source (HTML): https://ai-game.dev/docs