https://bugs.winehq.org/show_bug.cgi?id=15255
--- Comment #9 from fjfrackiewicz@gmail.com --- (In reply to winetest from comment #8)
(In reply to fjfrackiewicz from comment #7)
I wouldnt be so sure it's the cause of the crash. I could be wrong. But this is something you should try 1st
err:winediag:FILE_CreateFile Too many open files, ulimit -n probably needs to be increased
There are some bugs and just recently some got solved by setting higher ulimit, see bug 42793.
I only mentioned this since GOG Galaxy is either made with or uses the features of the Chrome Embedded Framework.