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.
A complete introduction to the Unity Editor.
All of the Unity Editor’s 2D-specific features including gameplay, sprites and physics.
The visual aspects of the Unity Editor including cameras and lighting.
Simulation of 3D motion, mass, gravity and collisions.
How to implement Multiplayer and networking.
Programming your games by using scripting in the Unity Editor.
Audio in the Unity Editor, including clips, sources, listeners, importing and sound settings.
Animation in the Unity Editor.
User interface toolkits available in the Unity Editor.
Navigation in the Unity Editor, including AI and pathfinding.
Suggest modifications to some of the Unity Editor’s source code.
Specific information for the many non-desktop and web platforms you can make projects for with the Unity Editor.
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.