Unity3d Game Engine

What it is

A Unity Editor package plus a Node.js server that speaks MCP. The package runs inside the Editor and the server bridges your AI client to it, so operations happen in the project you have open.

What you get

• Scene and hierarchy work: select_gameobject, get_gameobject, update_gameobject, duplicate_gameobject, delete_gameobject, reparent_gameobject, move_gameobject, rotate_gameobject, scale_gameobject and set_transform for position, rotation and scale in one call
• Scenes as files: create_scene, load_scene with optional additive loading, save_scene, unload_scene, delete_scene and get_scene_info
• Components and assets: update_component adds a component if the object does not have it, add_asset_to_scene pulls from the AssetDatabase, create_prefab builds one with serialized field values, and add_package installs through the Package Manager
• Materials: create_material, assign_material, modify_material and get_material_info
• Editor control: execute_menu_item runs any MenuItem-tagged function, recompile_scripts rebuilds, run_tests drives the Test Runner, and send_console_log / get_console_logs write and read the console with pagination
• batch_execute runs several operations as one request, with optional rollback on failure
• Play mode: get_play_mode_status and set_play_mode_status with play, pause, stop and step, plus show_unity_dashboard for the VS Code app
• Resources rather than tools where a listing is the point: unity://menu-items, unity://scenes-hierarchy, unity://gameobject/{id}, unity://logs, unity://packages, unity://assets and unity://tests/{testMode}

Requirements

Unity 6 or later, Node.js 18 or later, and npm 9 or later for debugging the server. Install the package through the Unity Package Manager with Add package from git URL... pointing at the repository. Project paths containing spaces are supported, though moving the project to a path without spaces is the first thing to try if the connection misbehaves. The package also adds Unity's Library/PackedCache folder to VSCode-like workspaces so autocompletion and type information cover Unity packages.

Setup effort

Follow the published steps

Tools you get

33 tools named in the project's documentation.

Requires

• Unity 6 or later
• Node.js 18 or later

Where it runs

All 10 documented setups run the server on your machine.