Use the Unity Editor to create 2D and 3D games, apps and experiences. Download the Editor at unity3d.com.
The Unity User Manual helps you learn how to use the Unity Editor and its associated services. You can read it from start to finish, or use it as a reference.
If it’s your first time using Unity, take a look at the introductory documentation on Working with Unity, and see the Unity Tutorials.
New
Best practice and expert guides
Physics in the Unity Editor, including Rigidbody components and manipulating them in 3D space.
Specific information for the many non-desktop and web platforms you can make projects for with the Unity Editor.
Unity Answers or Unity Forums - here you can ask questions and search answers.
The Unity Knowledge Base - a collection of answers to questions posed to Unity’s Support teams.
Tutorials - step by step video and written guides to using the Unity Editor.
Unity Ads Knowledge Base - a guide to including ads in your game.
Asset Store help - help on Asset Store content sharing.
Is a feature not working as you expect it to? It might be an existing Known Issue. Please check using the Issue Tracker at issuetracker.unity3d.com.