Gaming AppData AppData doesn't exist on Linux, so the behaviour of where files are placed is different depending on the method of launching a given app. If utilizing Steam: Obtain the Game's ID from the end of the Store Page's URL /var/home/ USER /.local/share/Steam/steamapps/compatdata/ GAME ID /pfx/drive_c/users/steamuser/AppData/ If utilizing Wine: Lethal Company Use the r2modman manager Installation of the mods functions the same way as Overwolf Replace USER , and paste this into steam launch options: WINEDLLOVERRIDES="winhttp,version=n,b" "/home/USER/.var/app/com.github.ebkr.r2modman/config/r2modmanPlus-local/LethalCompany/web_start_wrapper.sh" %command%