The X

1 files use the extension of UPK

.UPK

Unreal Engine 3 Package

Classification:game files
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.

instruction:

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.

UPK(Unreal Engine 3 Package) related software:

Windows

2 software

发送 E10102 至公众号 IT小技巧 查看软件名称。