MCP Game Deck

Claude Code, plugged straight into the Unity Editor.

273 MCP Tools  ·  10 Specialist Agents  ·  24 Slash Commands  ·  16-doc Knowledge Base  ·  External Desktop App

v2.0.0  •  Unity 6+  •  Requires Claude Code  •  Windows / macOS / Linux

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What is MCP Game Deck?

MCP Game Deck is a Unity Editor extension that turns Claude Code into a first-class collaborator inside your project. It exposes 273 MCP tools that cover everything from scene editing and prefab authoring to builds, profiling, ProBuilder mesh work, lighting, animation, and ScriptableObject data flows — and pairs them with a dedicated desktop chat app, persistent plans, project rules, and 10 Unity-specialist subagents.

**It is not an AI itself.** It is the bridge that lets Claude Code see, create, modify, and inspect your Unity project — and a polished home for that conversation outside the Editor process.

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Highlights

A real chat home outside Unity

The chat moved out of the Editor in v2.0. A native desktop app (built with Tauri) replaces the in-editor window: it survives assembly reloads, stays alive across Unity restarts, and can run in parallel with the Editor without fighting it for focus.

The Unity package launches the app from a toolbar pin. First click downloads a signed binary from the GitHub Release, verifies its SHA-256, and spawns it pointed at your project. After that the pin is just a focus shortcut.

Persistent plans, persistent rules

Plans and rules are first-class citizens in v2.0, stored as markdown in `ProjectSettings/GameDeck/`. Plans are full markdown documents with structured frontmatter — write one, execute it through the chat, edit and re-run