UtinyRipper VS UnrealPakTool

it's made in unity3D so theoretically you could just use like utinyripper or something

You try older versions, but there are alternatives too. You can try UTinyRipper: https://github.com/mafaca/UtinyRipper / https://sourceforge.net/projects/utinyripper/files

OP hasn't heard of UTinyRipper (github) (youtube)

I think you can use uTinyRipper but I found a link to an archive where someone had used that (or a similar tool) and uploaded it all somewhere. I'll see if I can find it again.

If this is from an already built game you don't have access to, you can use some common Unity mod tools like Unity Asset Bundle Extractor: https://github.com/SeriousCache/UABE Or UTinyRipper: https://github.com/mafaca/UtinyRipper Just note these are not guarantees and sometimes takes a decent amount of time and effort to get what you are looking for.

Head to here,github repository of uTinyRipper.

Get https://github.com/allcoolthingsatoneplace/UnrealPakTool

Found this github repo which explains how to use the commands with the tool called UnrealPak. My plan was to unpack the assets, replace assets, re-pack assets.

Looks like this will have to be done on Windows using a tool like this https://github.com/allcoolthingsatoneplace/UnrealPakTool

Assets such as meshes, animations, textures and sounds can be ripped from the compiled project with something like Unreal Pak Tool, unless they are encrypted and you don't have access to the encryption key.

In regards to datamining, it starts with a solid foundation of computers and programming. Then compression, encryption, and reverse engineering. It is a difficult thing to learn, but there are some handy tools out there that work universally for some engines like the UnrealPAKTool and UtinyRipper. Look through their code and try to understand how they are dealing with files.