Here's the simple way to do it. Download Heroic Games Launcher Launch it and log in to your Epic account Download the TSW Editor Open the settings for the editor in Heroic Games Launcher and note down the folder of its Wine prefix - make sure the folder path isn't too long or the editor will give an error Go to /Steam/steamapps/compatdata/2362300/pfx/ and copy the contents to the Wine prefix folder of the editor you noted earlier - you will have to do this every time TSW4 updates Launch the editor Now performance is very poor and there are a lot of graphical glitches with the UI, but you can launch it.