: Use a tool like 7-Zip or WinRAR to open the .7z archive.
To "unlock" the story content associated with this file, you must install it as a mod: 3BBB.7z
If you are looking for a specific narrative mod that uses this physics framework, you might be thinking of quest packs like or Project Valkyrie for Fallout 4, which often utilize these types of enhancements for their "lore-friendly" and world-building additions. : Use a tool like 7-Zip or WinRAR to open the