I just recently installed Oblivion using GOG Galaxy.

So far I have the Unofficial Oblivion Patch, Unofficial DLC Patch and Unofficial Shivering Isles patch extracted in the main Oblivion Folder, which for me is in E:\GalaxyClient\Games\Oblivion.

However when I load the game it doesn't have any options in the Data Files settings for these mods/patches. They are just not there. They don't even appear in Oblivion Mod Manager or Wrye Bash.

I have tried doing BSA Redirection in Oblivion Mod Manager and Wrye Bash but that hasn't worked either.

Any clue what is going on?

EDIT:

The game is crashing immediately after I click start game in the Oblivion launcher too.

Please help, I have no idea what the issues are!

Tipp: Most mods come with a readme file. Read it!

The main mod folder for Oblivion is Obivion\Data. This is the folder where Oblivion searches for mods when you click "Data Files" in the main menu.

I have, the read me files told me to put the mods/patches in the main Oblivion folder, which is where I have already said I've put them.

I'm not sure what files you downloaded, but the readme files of the Unofficial Oblivion / Shivering Isles / DLC Patches I have all say "install to Oblivion\Data".

Edit: Just saw a UOP readme saying "Install to Oblivion" - this is wrong! All files having an extension of ESP or ESM must be in Oblivion\Data.