Lucky you, playing Grim Fandango remastered is a great experience. Unfortunately if you bought the game on GOG and you like to play both on your Mac as well as on your Windows computer, you will not be able to synchronize your save files in the cloud. The client Gog Galaxy isn’t able to do that… yet.
So if you tried to find the solution online, well there are little information about it. Or should I say they are information about it, stating that you should be able to find the save files in this folder:
~/Library/
Application Support/
Doublefine/
GrimFandango/
Unfortunately if you try to look for it in the Mac Finder, you will probably not be able to find the “Doublefine” folder, no matter how hard internet users are telling you so.
Actually, the folder does exists, but for strange reason, Finder hide it, until you access it for the first time… That’s handy!
So the only way to access it, is to click the Go menu (in Finder), then Go to folder. Then copy/paste the line above (~library etc.) and hit enter. This will bring you directly to the hidden folder.
The remaining step is to mail you or Dropbox youm both the registry.sav file and the savedata0000 folder.
Finally going back to your Windows computer, head straight to:
C:\Users\
my-user-name\
AppData\
Roaming\
Doublefine\
GrimFandango
and paste the files and voila, you can now play on your Windows computer straight from where you stop on your Mac!