UPK Files (XCOM2)

This page is for documenting the .upk files and more specifically, some notion of what's in them.

Viewing/Extracting

UE Viewer can be used to inspect the contents of .upk files and export them in a more useable format (for example, Texture2D files are exported as .tga files).

UE Explorer can be used to disassemble and read scripts.

UPK Files

Tip: Instead of listing every file below by name, use wildcards (*) to describe the name of groups of files that are related and hold similar content.

Filename	Relative Path (from XComGame/)	Contents
Startup.upk	./CookedPCConsole/	A lot. This appears to be a main dumping ground for a lot of the game's data. Images/Textures XCOM:EU and XCOM2 perk UI elements Various other UI elements such as status effects, objects, hack rewards, etc.
UILibrary_DLCImages_SF.upk UILibrary_DLC*Images_SF.upk	./CookedPCConsole/	Various DLC UI images such as ability icons, research items, weapons images, etc.
UILibrary_MissionImages_SF.upk	./CookedPCConsole/	Tactical layer UI images.
UILibrary_StrategyImages_SF.upk	./CookedPCConsole/	Strategy layer UI images.