What is .PK4 file extension?
.PK4 file extension is a known file type. This section tells you everything you need to know about this extension.
Compressed game data file used by games that use the id Tech 4 game engine, which was developed by id Software for Doom 3; stores game assets, such as maps, graphics, audio files, or other data used for gameplay; similar to the .PK3 format.
Since PK4 files are compressed using Zip compression, they can be decompressed using any compatible Zip decompression utility.
Other games that use the id Tech 4 engine include Quake 4, Prey, Wolfenstein, and Brink.
You can see a list of software programs below that can open this file type so that you don’t need to search for it on the web. You can then open your file with this extension using a software listed below.