In the file I downloaded, there was only loneghost.exe and nothing else.

I couldn't run it because some files were missing.

When I released my first game, I made a similar mistake by putting only the .exe file in the downloadable folder without the actual assets of the game. 

So it couldn't run.

Unless Godot files work differently, or I'm missing something, this is an issue that needs to be fixed for the downloadable version of the game.

PS. I got the black feather, but I can't find the other item on the 4th floor. Where is it?

(I'm playing the browser version)

Nice to see an entry made in Godot! I really liked the graphics in particular!