A forewarning: the game is a Windows game. This workshop item is meant for Windows. You're just interested in what it installs and some of these directions.


If you've already downloaded Last Evil, chances are you don't need to do this step.

Otherwise, open Steam, select "Steam" from the upper-left, then "Settings", this opens a window, select "Compatibility", then enable "Enable Steam Play for all other titles". These directions were tested against Proton 8.0-2 and Proton Experimental.



If you haven't done so, download Last Evil through Steam.



Click "Play" so that Proton installs as a pre-installation action if this is the first game you've ever played this way.



Subscribe to "Install Mod Manager App".



Subscribe to a valid workshop mod.



If you don't have mono installed (or only have the runtime), get it:

sudo apt install mono-complete



Mine got installed to ~/.steam/debian-installation/steamapps/workshop/content/823910/2682032040/files/0.24.0.0/UMM

Open a terminal window at the location. Alternatively, use the executable in the Google Drive link (but I didn't test that one).

Run: mono UnityModManager.exe

Click: Install

Optionally, check the "Log" tab for details. It should have injected into one of the DLLs. Doorstop proxy isn't an option on non-Windows environments.



Close UMM. You do not need to use this program for anything else, unless you want to uninstall it or load mods you can't subscribe to through Steam.

Close the terminal window you ran mono from.



Run Last Evil from Steam. If everything worked out, the "Mod Manager" button in the lower left should have shown up.

You can verify what happened in the log in the Proton compatibility environment for the game: ~/.steam/debian-installation/steamapps/compatdata/823910/pfx/drive_c/users/steamuser/AppData/LocalLow/Flametorch/LastEvil/Player.log

Look for "Injection..." and "FINISH. SUCCESSFUL LOADED X/Y MODS." You should see log entries for the mod you subscribed to in step 5 somewhere between there.



I did this on a fresh VirtualBox installation of Debian 12. The game crashes on the menu screen for me (though the intro video plays smoothly) with or without modding. The mod manager button did show up, and the log file is what I'd expect. That makes me think it worked.

Your experience may be different on a real installation. Please help other people out if you get it running and had to do something different. Chances are really good you'll have to or prefer to do something different.