I'm having this issue with all games of the series. When trying to exit from the game, after the confirmation dialog I'm sent back to the game menu. With S. Returns and S. Dragonfall I can force exit with ALT-F4, but with S. Hong Kong this doesn't work and I have to kill the process.

My system is an intel i7 with nvidia 1060 gtx (proprietary drivers), Arch linux and KDE Plasma 5 as D.E. The game starts and works without any other problems, so I think that all the needed lib32's are installed.

I can provide more informations if needed.

Edit: sorry, I forgot to mark it as a question in the topic and now I can't change it anymore...

I found that ALT+F4 works if I don't go bak to the menu.
I'm on Slackware with KDE4.

Thanks for the workround. I hope for a patch or some solution. As I saw, this was also reported on steam.