Yesterday I have installed this mighty fine game, but I can't really enjoy it fully because of a severe instability.
The game pretty frequently crashes to desktop during CPUs turn of combat. The wierd thing is that even if I use a save right before the encounter and do it again, the game crashes aswell.
Anyone knows how to fix this? I am using Windows 10.

You need to reload the save and play the battle that's crushing the game without both sound effects and music (set them to off), after that you either play until you encounter a crush again and repeat the fix, or just set all to off and play the sound from for example YouTube. To be honest I haven't checked if disabling just music would be enough fix the problem,
but setting both to off fixed it for me (I used my old CD to install it not GOG). Funny thing is, that often in older games the sound is the problem, had same problem with Konung I, when sound was crushing it.