.UNITY3D File Extension
File TypeUnity Web Player File
This file is saved in a binary format, which requires a specific program to read its contents.
What is a UNITY3D file?
A UNITY3D file is a Web Player file created by Unity, an application used to develop 3D games. It is used to enable gameplay within a web browser that has the Unity Web Player plug-in installed. UNITY3D files contain all assets and other game data in a single archive and can be published from a .UNITY scene file.
The assets within a UNITY3D file are stored in a proprietary, closed format to protect proprietary data.