Hi,
I've looked into this. On windows 7 it works, on windows 10 it didnt.
The version i was working on was steam, but yours will be similar.
the game runs if you open command prompt, type ""C:\Program Files (x86)\Steam\steamapps\common\Urtuk The Desolation\desktop-1.0.jar" -c config.json"
so what i did was create a .bat file in the game directory and then paste a shortcut to it on the desktop.
to create a bat, open notepad, copy and paste ""C:\Program Files (x86)\Steam\steamapps\common\Urtuk The Desolation\desktop-1.0.jar" -c config.json" into it. save it on the desktop with name "urtuk.bat" copy that to the game directory. copy and "Paste Shortcut" on the desktop. and your game should now work.
you can rename the shortcut. The game creates files where the command is run, so it's best that it's kept in game directory. if you want to copy your game saves and settings, the 4 files created in the game directory will be those.
Hope this helps