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Decision brief
Unity-MCP provides specific C#-based tools and AI functionalities to integrate with the Unity game engine, supporting multiple LLMs within its framework.
Good fit when
- You require efficient token usage and want to quickly set up AI functionalities in Unity using CLI commands.
- You aim to leverage various LLMs such as Claude Code or Gemini seamlessly with your project without manual integration processes.
Avoid when
- Your development workflow does not align with C#, as Unity-MCP heavily relies on C# for AI tool integrations.
- If you prefer a framework that offers broader language support, instead of focusing solely on LLM tools within the scope of C# and Unity.
- Pricing:
- freemium - The tool is free for use due to its open-source nature; however, any additional cost may stem from LLM services that require paid plans.
Observed Jul 16, 2026 · Source: enrich:decision_facts
Verify the decision
Maintenance and security
Full trust report- Maintenance
- Very active (1d since push)
- As of today
- Provenance
- Not a fork · Personal account
- As of today
- Security (OSV)
- No lockfile
- As of 3d
Public GitHub metadata and optional OSV scans. Signals, not a guarantee. Trust methodology.
Install
git clone https://github.com/IvanMurzak/Unity-MCPSimilar tools
Same-category neighbours. No typed graph edges are catalogued for this tool yet.
Evidence and technical details
Sourced facts, taxonomy, compatibility claims, README excerpt, and machine-readable endpoints.
Overview
A repository providing tools and commands to integrate AI functionalities into the Unity game engine using C#. Supports multiple LLMs like Claude Code, Gemini, Copilot.
Capability facts
- Languages
- c#
Source: github.language · Aug 26, 2026
Categories
Compatibility
Sourced claims from the README excerpt - not unsourced marketing copy.
Source: README excerpt (regex_v1, Aug 26, 2026)
npm install -g unity-mcp-cliSource link
Source: README excerpt (regex_v1, Aug 26, 2026)
2. **[Pick an AI agent](#step-2-install-ai-agent)** — Claude Code, Claude Desktop, GitHub Copilot, Cursor, or any otherSource link
Source: README excerpt (regex_v1, Aug 26, 2026)
ent](#step-2-install-ai-agent)** — Claude Code, Claude Desktop, GitHub Copilot, Cursor, or any otherSource link
Source: README excerpt (regex_v1, Aug 26, 2026)
- [GitHub Copilot in VS Code](https://code.visualstudio.com/docs/copilot/overview)Source link
Tags
README
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
Quick Start
Get up and running in three steps:
-
Install plugin — download the
.unitypackageinstaller or runopenupm add com.ivanmurzak.unity.mcpAlternative:
npx unity-mcp-cli install-plugin ./MyUnityProject— see CLI documentation -
Pick an AI agent — Claude Code, Claude Desktop, GitHub Copilot, Cursor, or any other
-
Setup AI agent — open
Window/AI Game Developerin Unity and click Auto-generate skills (recommended) or Configure MCPAlternative:
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. ✨
Install Additional Skills and Tools
Install extensions when need more tools or create your own tools.
| Extension | Description |
|---|---|
| AI Animation | Set of additional tools for Unity Animations |
| AI Cinemachine | MCP Tools for Cinemachine |
| AI InputSystem | MCP Tools for the Unity Input System |
| AI Navigation | MCP Tools for AI Navigation (NavMesh surfaces, baking, agents, links) |
| AI ParticleSystem | Set of additional tools for Unity Particle System |
| AI ProBuilder | Set of additional tools for Unity ProBuilder |
| AI Splines | MCP Tools for Unity Splines |
| AI Terrain | Set of additional tools for Unity Terrain |
| AI Tilemap | MCP Tools for Unity 2D Tilemaps |
| AI Timeline | MCP Tools for Unity Timeline cutscenes and sequences |
Step 1: Install Unity MCP Plugin
⚠️ Requirements (click)
[!IMPORTANT] Project path cannot contain spaces
- ✅
C:/MyProjects/MyProject- ❌
C:/My Projects/MyProject- ❌
C:/My Projects/My Project- ❌
C:/MyProjects/My Project
1.1 Install unity-mcp-cli # ┌────────────────────┐
npm install -g unity-mcp-cli # │ Available AI agent │ # ├────────────────────┤
1.2 (Optional) Install Unity # │ antigravity │
unity-mcp-cli install-unity # │ claude-code │ # │ claude-desktop │
2. Install "AI Game Developer" in Unity project # │ gemini │
unity-mcp-cli install-plugin ./MyUnityProject # │ github-copilot-cli │ # │ kilo-code │
Step 2: Install AI agent
Choose a single AI agent you prefer - you don't need to install all of them. This will be your main chat window to communicate with the LLM.
- Claude Code (recommended)
- Claude Desktop
- GitHub Copilot in VS Code
- Antigravity
- [Cursor](https:
For agents
This page has a .md twin and JSON over the API.