UnityIDE Documentation

Set up your Unity IDE, connect your project, and learn the C# and AI workflows.

Installation Install on Windows or macOS, get past Gatekeeper and SmartScreen, and set up C# IntelliSense.

Opening a Unity Project Open your project folder and let UnityIDE index your scripts, scenes, and assets.

Unity Editor Connection Play and pause the Unity Editor, stream console logs, and navigate the scene hierarchy from UnityIDE.

AI Chat & Modes Agent, Ask, and Plan modes, with configurable reasoning levels.

Project Knowledge Graph Search indexed C# classes, scenes, prefabs, and their relationships to find relevant project context.

Troubleshooting Indexing, Unity connection, and Gatekeeper problems, and what to do about them.

Explore Unity development workflows

AI agents for Unity developers: choose a built-in AI mode or a supported external agent, understand its tools, and review a change.
UI Toolkit editor for UXML and USS: edit source with a preview, then verify the interface in Unity.
UnityIDE comparisons: evaluate editor integrations, setup requirements, and workflows for your project.