.UPK File Extension

Unreal Engine 3 Package

Developer Epic Games
4.2  |  63 Votes
Category Game Files
Format Binary

What is a UPK file?

File used by Unreal Engine 3, a free gaming engine used to develop popular games such as Unreal Tournament 3, Mass Effect, Mirror's Edge, and BioShock; serves as a file container which includes various types of game files; may contain 3D models, textures, maps, music files, game settings, and other files.

More Information

UPK files are used to load on-demand content while playing a game. They can be created and edited using the Unreal Development Kit (UDK), which is the free edition of Unreal Engine 3. However, UDK is no longer supported by Epic Games.

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Programs that open UPK files

Updated June 28, 2018

Verified by FileInfo.com

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