Finally got around to trying this out. Your tutorial worked perfectly! Somehow though, it added two different instances of Royals, and the steamdb art didn't work. But that's fine. The game works!
So when i hit play in steam it opens the bottles select screen. I then select royals and it will just close and wont load the game. Ive tried different runners but still only opens the game if i open it with bottles.
I managed to get it installed and running, but at the login screen typing on the keyboard wont give me anything on the actual fields.