Once you've found the Steam library, the AddOns folder will be at the following steamapps/compatdata/306130/pfx/drive_c/users/steamuser/My Documents/Elder Scrolls Online/live/AddOns.Īnd as a helpful tip for the future, whenever you download a Proton game, Steam will create a folder for its Windows stuff in the compatdata folder. As an example, I installed ESO into a Steam library that was located at /mnt/Linux Games/SteamLibrary. If you downloaded Elder Scrolls Online into the default library that comes with Steam, then your AddOns folder will probably be located at the following: ~/Steam/steamapps/compatdata/306130/pfx/drive_c/users/steamuser/My Documents/Elder Scrolls Online/live/AddOnsīut if you're like me and installed ESO into a different Steam library (or the above didn't work for you), then you first need to go to this location. Since you want to install add-ons manually, I'll quickly show you how to find your AddOns folder. Hi there! Here's what I did to install add-ons for ESO on Linux (I'm using Linux Mint myself).