.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.
Scene Web player file created by Unity, an application used to develop 3D games; contains all assets and other game data in a single archive; used to enable gameplay within a Web browser that has the Unity Web Player plug-in installed; 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.