Have you tried the solutions in !zLINUX USERS PLEASE READ.txt file? The methods there are the ones that have worked for people who've ran into issues on Linux.
Oh, I never saw that, since it is hidden in the installation folder, that you don't visit, if you install via the desktop program.
When I just used chmod, nw did start - after a very long loading time, but gave a lot of fontconfig errors and warnings. But at least the character view was there now. The were status bars though, that looked like they were cut of by the end of the window.
When I added the patch from google drive, it was broken again: nw didn't start and ./Game was unchanged (still with missing references etc)
Why does it recommend to install nwjs 0.45.6 instead of the current stable release? (0.53.1)