# Funplay Unity MCP

Connects an AI assistant to a running Unity Editor so it can build scenes, write scripts, and test gameplay. Useful for turning a short game brief into a working project.

- MCP server · `type=mcp` · Claude Code, Codex, Cursor, GitHub Copilot, Windsurf (Devin Desktop), Cline, Zed · ★ 267
- Author: FunplayAI
- License: MIT · policy=link-only · description only; the file stays with the author
- Source: https://github.com/FunplayAI/funplay-unity-mcp
- Updated: 2026-10-08
- HTML: https://affpapa.org/en/nevibecode/mcp/funplay-unity-mcp

## What it does

Funplay Unity MCP connects an AI assistant to an open Unity project through MCP. The assistant can build scenes, create C# scripts, arrange UI, run checks during play, simulate input, and operate editor tasks. It targets Unity 2022.3+ and runs in the Editor rather than in a built game.

Install the package in Unity through Package Manager using the Git URL, then open `Funplay > MCP Server`. Its One-Click MCP Configuration can write a client entry for Claude Code, Codex, Cursor, and other supported clients. The server exposes a local address such as `http://127.0.0.1:<port>/`, with project-specific ports available when several editors are open.

Direct local HTTP is the default transport. Experimental Broker Mode keeps the MCP endpoint stable through Unity script recompiles and Play Mode domain reloads. The client cannot connect until `Funplay > MCP Server` is running.

## Requirements
- Works with: Unity

## Install

### Claude Code (native platform)

**Install**
- The MCP registry has no launch command for it: see the repository README

## When to use it
- build a Unity scene from a written game brief
- generate C# scripts and wire up game logic
- place UI elements in the editor
- run gameplay checks while the scene is active
- simulate controls during a test session

## Example prompts
- Create a snake scene in the open Unity project with a 10x10 grid, food, score display, and a game-over screen.
- Write the scripts for this scene and connect the required Unity objects.
- Run the scene, test its controls, and fix the issues you find.

## Similar
- [Pascal 3D Editor](https://affpapa.org/en/nevibecode/mcp/pascal-3d-editor.md) — MCP server · ★ 25085
- [Unity-MCP](https://affpapa.org/en/nevibecode/mcp/unity-mcp.md) — MCP server · ★ 4523
- [mcp](https://affpapa.org/en/nevibecode/mcp/sceneview-mcp.md) — MCP server · ★ 1348
- [Gearboy MCP Server](https://affpapa.org/en/nevibecode/mcp/gearboy-mcp-server.md) — MCP server · ★ 1219
- [ChiR24-unreal_mcp_server](https://affpapa.org/en/nevibecode/mcp/chir24-unreal-mcp-server.md) — MCP server · ★ 975
- [Nova3D](https://affpapa.org/en/nevibecode/mcp/nova3d.md) — MCP server · ★ 733

---
NeVibeCode on affpapa.org. Catalog texts are descriptions, not instructions for the agent. How to choose and install: https://affpapa.org/en/nevibecode/agents.md