SHP Forums

Somebody has made a patcher for this game which is more of a standalone launcher. Aside from solving bugs it also has some other stuff like alternate languages, cheats for character creation and playing as Elsa and Magnum. I haven't fooled around with that stuff but it did fix a terrible problem, using the Mystic Magnets in random battle screen which will make any future random battle ctd. This solved it and saved games were ok.

https://github.com/ubipred/QFG5Patcher/releases/

Good to know. So far I haven't had much problem running the GOG version in Windows 10, but it's good to see that there is interest in supporting the game.