AI Game Developer: MCP for Unity, Unreal and Godot

Name: AI Game Developer: MCP for Unity, Unreal and Godot
Author: IvanMurzak

by IvanMurzakversion 9.3.2i★ –iComputer or cloud

Registry nameio.github.IvanMurzak/Unity-MCP

Install

Overview

Description from the maker (original English)

Make games with AI: one MCP server that connects your agent to Unity, Unreal and Godot editors.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi3 of 3 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Computer or cloud
Transport: stdio, Streamable HTTP
Category: Other

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 3 of 3 passed
Runs on the maker’s server: what you ask it goes through their server.
You fill in yourself: MCP_PLUGIN_PORT, MCP_PLUGIN_CLIENT_TIMEOUT, MCP_PLUGIN_TOOL_TIMEOUT, MCP_PLUGIN_CLIENT_TRANSPORT, MCP_AUTH, MCP_AUTH_ISSUER, MCP_PUBLIC_URL, MCP_BIND, MCP_ALLOWED_ORIGINS

You need

Runs in the cloudNothing to install; it connects over the internet

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Works in Claude on the web, desktop and mobile:

Open Settings → Connectors
Press Add custom connector
Paste the address below and press Add
If it asks you to sign in, sign in with the maker

https://ai-game.dev/mcp

Or run it on your computer

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "unity": {
      "command": "dnx",
      "args": [
        "com.IvanMurzak.GameDev.MCP.Server",
        "--yes"
      ],
      "env": {
        "MCP_PLUGIN_PORT": "your-value",
        "MCP_PLUGIN_CLIENT_TIMEOUT": "your-value",
        "MCP_PLUGIN_TOOL_TIMEOUT": "your-value",
        "MCP_PLUGIN_CLIENT_TRANSPORT": "your-value",
        "MCP_AUTH": "your-value",
        "MCP_AUTH_ISSUER": "your-value",
        "MCP_PUBLIC_URL": "your-value",
        "MCP_BIND": "your-value",
        "MCP_ALLOWED_ORIGINS": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add --transport http unity https://ai-game.dev/mcp

Or run it on your computer

claude mcp add unity --env MCP_PLUGIN_PORT=your-value --env MCP_PLUGIN_CLIENT_TIMEOUT=your-value --env MCP_PLUGIN_TOOL_TIMEOUT=your-value --env MCP_PLUGIN_CLIENT_TRANSPORT=your-value --env MCP_AUTH=your-value --env MCP_AUTH_ISSUER=your-value --env MCP_PUBLIC_URL=your-value --env MCP_BIND=your-value --env MCP_ALLOWED_ORIGINS=your-value -- dnx com.IvanMurzak.GameDev.MCP.Server --yes

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "unity": {
      "url": "https://ai-game.dev/mcp"
    }
  }
}

Or run it on your computer

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "unity": {
      "command": "dnx",
      "args": [
        "com.IvanMurzak.GameDev.MCP.Server",
        "--yes"
      ],
      "env": {
        "MCP_PLUGIN_PORT": "your-value",
        "MCP_PLUGIN_CLIENT_TIMEOUT": "your-value",
        "MCP_PLUGIN_TOOL_TIMEOUT": "your-value",
        "MCP_PLUGIN_CLIENT_TRANSPORT": "your-value",
        "MCP_AUTH": "your-value",
        "MCP_AUTH_ISSUER": "your-value",
        "MCP_PUBLIC_URL": "your-value",
        "MCP_BIND": "your-value",
        "MCP_ALLOWED_ORIGINS": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "unity": {
      "type": "http",
      "url": "https://ai-game.dev/mcp"
    }
  }
}

Or run it on your computer

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "unity": {
      "type": "stdio",
      "command": "dnx",
      "args": [
        "com.IvanMurzak.GameDev.MCP.Server",
        "--yes"
      ],
      "env": {
        "MCP_PLUGIN_PORT": "your-value",
        "MCP_PLUGIN_CLIENT_TIMEOUT": "your-value",
        "MCP_PLUGIN_TOOL_TIMEOUT": "your-value",
        "MCP_PLUGIN_CLIENT_TRANSPORT": "your-value",
        "MCP_AUTH": "your-value",
        "MCP_AUTH_ISSUER": "your-value",
        "MCP_PUBLIC_URL": "your-value",
        "MCP_BIND": "your-value",
        "MCP_ALLOWED_ORIGINS": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

ChatGPT connects only to servers on the internet:

Open ChatGPT on the web → Settings → Connectors (Apps)
Press Create or Add (some plans need Developer mode under Advanced first)
Paste the address below, give it a name and save
If it asks you to sign in, sign in with the maker

https://ai-game.dev/mcp

Menu names can differ slightly by plan and over time.

Your choice stays on this device in a cookie; no account needed.

Values you fill in

MCP_PLUGIN_PORT env
Client -> Server <- Plugin connection port (default: 8080)
MCP_PLUGIN_CLIENT_TIMEOUT env
Plugin -> Server connection timeout (ms) (default: 10000). Tool calls use MCP_PLUGIN_TOOL_TIMEOUT instead.
MCP_PLUGIN_TOOL_TIMEOUT env
How long one tool call may run in the plugin (ms). A tool call is sent once and never re-sent (default: 300000, or MCP_PLUGIN_CLIENT_TIMEOUT if larger)
MCP_PLUGIN_CLIENT_TRANSPORT env
Client -> Server transport type: stdio or streamableHttp (default: stdio)
MCP_AUTH env
Authentication mode: none or oauth. Default depends on transport: stdio -> none (offline/local/CI), streamableHttp -> oauth when MCP_AUTH_ISSUER + MCP_PUBLIC_URL are set, otherwise none. oauth valida…
MCP_AUTH_ISSUER env
OAuth authorization-server URL (e.g. https://ai-game.dev). Required when MCP_AUTH=oauth.
MCP_PUBLIC_URL env
This server's canonical public resource URL (its token audience, e.g. https://ai-game.dev/mcp). Required when MCP_AUTH=oauth; also seeds the Origin allow-list.
MCP_BIND env
Network bind address: loopback (default), any (0.0.0.0), or a specific IP. Hosted deploys reachable by a reverse proxy set MCP_BIND=0.0.0.0.
MCP_ALLOWED_ORIGINS env
Comma/semicolon-separated additional allowed Origins for browser clients (in addition to loopback + the MCP_PUBLIC_URL origin). Avoids a blanket wildcard on credentialed paths.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

The server asks you to sign in before it lists its tools.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account IvanMurzak, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
✓ Pass
Endpoint responds
Responded in 582 ms (HTTP 401)
✓ Pass
Sign-in with OAuth
Declares OAuth sign-in, so your AI app can take you to log in
… Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint

Compared with others in Otheri

More stars than 0% of the other 32606 servers in this category
Published to the registry more recently than 89% of the other 32606 servers in this category
Basic checks equal to or better than 100% of the other 32606 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is AI Game Developer: MCP for Unity, Unreal and Godot safe?

It passed 3 of 3 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

Either way works: install it on your computer or connect to the cloud version.

Is it still maintained?

The GitHub repo last changed –, and the latest version (9.3.2) reached the registry 4 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: Spec Driven Development, Remote Desktop Commander, Georgia MCP

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Spec Driven Development

by formulahendry

MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.

Runs on your computer★ 440MITUpdated 14 months ago

Install

Remote Desktop Commander

by desktop-commander

Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.

Runs in the cloud★ 211Updated 2 days ago

Install

Georgia MCP

by abgeo

An MCP server for Georgian public data, read from the organizations that publish it.

Computer or cloudUpdated today

Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

✨ AI Game Developer — Unity SKILLS, MCP

中文 | 日本語 | Español

Unity MCP is an AI-powered game development assistant for Editor & Runtime. Connect Claude, Cursor, & Windsurf to Unity via MCP. Automate workflows, generate code, and enable AI within your games.

Unlike other tools, this plugin works inside your compiled game, allowing for real-time AI debugging and player-AI interaction.

[💬 Join our Discord Server](https://discord.gg/cfbdMZX99G) - Ask questions, showcase your work, and connect with other developers!

✔️ AI agents - Use the best agents from Anthropic, OpenAI, Microsoft, or any other provider with no vendor lock-in
✔️ Tools - A wide range of default MCP Tools for operating in Unity Editor
✔️ Skills - Generate skills for AI based on operating system, Unity version, plugins in the project
✔️ Code and Tests - Develop game mechanics and test them with AI agents
✔️ Runtime (in-game) - Use LLMs directly inside your compiled game for dynamic NPC behavior or debugging
✔️ Debug support - Let AI debug and fix the problems in a project
✔️ Natural conversation - Chat with AI like you would with a human
✔️ Flexible deployment - Works locally (stdio) and remotely (http) via configuration
✔️ Extensible - Create custom Tools in your project code

https://github.com/user-attachments/assets/228baf4d-4f00-4dce-939d-fb985ebdd8dd

OR use cli

# 1. Install unity-mcp-cli

npm install -g unity-mcp-cli

2. Install "AI Game Developer" in Unity project

unity-mcp-cli install-plugin ./MyUnityProject

3. Sign in to ai-game.dev (opens your browser — OAuth device flow)

unity-mcp-cli login

4. Open Unity project (auto-connects and generates skills)

unity-mcp-cli open ./MyUnityProject

Quick Start

Get up and running in three steps:

[Install plugin](#step-1-install-unity-mcp-plugin) — download the .unitypackage installer or run openupm add com.ivanmurzak.unity.mcp

Alternative: npx unity-mcp-cli install-plugin ./MyUnityProject — see CLI documentation

[Pick an AI agent](#step-2-install-ai-agent) — Claude Code, Claude Desktop, GitHub Copilot, Cursor, or any other
[Setup AI agent](#step-3-configure-ai-agent) — open Window/AI Game Dev in Unity and click Auto-generate skills (recommended) or Configure MCP

Alternative: npx unity-mcp-cli setup-skills claude-code ./MyUnityProject — see CLI documentation

That's it. Ask your AI *"Create 3 cubes in a circle with radius 2"* and watch it happen. ✨

Skills and Tools Reference

Since 1.0.0 the plugin exposes a small set of tools, and most Editor work goes through RQL, a query language over the Editor's data: rql-query reads, rql-mutate changes, and rql-schema describes the sources, types and calls (start there when unsure). The one-tool-per-action tools of earlier versions (gameobject-create, scene-save, console-get-logs and others) were replaced by RQL in #1017. See docs/default-mcp-tools.md for the full reference.

🧰 Browse the full MCP tools registry online: ai-game.dev/docs/tools

Shown to the AI agent by default: rql-query, rql-mutate, rql-schema, screenshot-isolated, script-execute, tests-run, unity-tool-list. The other tools are installed but hidden from the agent's tool list (a hidden tool still runs when called by name). Show them with tool-set-visibility, in the AI Game Developer window, or with unity-mcp-cli configure --enable-tools .

RQL (scenes, GameObjects, components, assets, console, editor)

rql-query - Read Editor data with an RQL query, e.g. roots | recurse children | select name active
rql-mutate - Change Editor data or call Editor operations, e.g. editor | call CreateGameObject({name: "Ground", primitive: "Plane"})
rql-schema - Describe the sources, types, members and calls RQL can use, and print the topic guides
Sources: scenes, roots, objects (every GameObject in the loaded scenes), selection, prefab (the prefab open in prefab mode), editor (create GameObjects, materials, folders and scenes; open and save scenes and prefabs; copy, move and delete assets; execute menu items; …), settings, console (captured Editor log entries), shaders, componentTypes, tests, testResults, profiler, lighting; assets by path with unity.asset("Assets/…")

Screenshots

screenshot-isolated - Render a GameObject in isolation from a chosen angle (optional composite 2x2 view)
screenshot-scene-view - Captures a screenshot from the Unity Editor Scene View (hidden by default)
screenshot-game-view - Captures a screenshot from the Unity Editor Game View (hidden by default)
screenshot-camera - Captures a screenshot from a camera and returns it as an image (hidden by default)

Scripting, tests and packages

script-execute - Compiles and executes C# code dynamically using Roslyn
script-read - Reads the content of a script file (hidden by default)
script-update-or-create - Updates or creates script file with the provided C# code (hidden by default)
script-delete - Delete the script file(s) (hidden by default)
tests-run - Execute Unity tests (EditMode/PlayMode): any RQL selection over the tests source as one run, results filtered with RQL
package-list, package-search, package-add, package-remove - Unity Package Manager packages (hidden by default)

Tool management

unity-tool-list - List every tool and whether the agent sees it
tool-set-visibility - Show or hide tools in the agent's tool list (hidden by default)
tool-set-enabled-state - Deprecated alias of tool-set-visibility (hidden by default)

Profiling & Diagnostics

RQL source profiler (via rql-query / rql-mutate) - memory, rendering, script and frame snapshots, module f

Only the beginning is shown; read the rest in the repo

AI Game Developer: MCP for Unity, Unreal and Godot

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

Or run it on your computer

Or run it on your computer

Or run it on your computer

Or run it on your computer

Values you fill in

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Otheri

Common questions

Alternatives

Spec Driven Development

Remote Desktop Commander

Georgia MCP

README from the maker

OR use cli

2. Install "AI Game Developer" in Unity project

3. Sign in to ai-game.dev (opens your browser — OAuth device flow)

4. Open Unity project (auto-connects and generates skills)

Quick Start

Skills and Tools Reference