This game has serious stability issues under everything newer than Windows 7. Just take look at the Steam forum for this game. I cant play my version more than a few minutes without crashing (Windows 10).
Is this issue solved with the GOG version?
Yeh I had the same question really.. then I found two things:
1. There's the 30 day money back guarantee from GOG..
2. There are some fixes floating around on the Steam forums, including an EXE file replacement fix, which apparently is a 3GB RAM limit type fix.
So I'm going ahead with a purchase and see if it plays ok tonight... it's 50% off.. so even if it's terrible.. I've not lost much but if crashing a lot, I'll ask for a refund.