https://bugs.winehq.org/show_bug.cgi?id=41307
--- Comment #10 from Fabian Maurer dark.shadow4@web.de --- Sorry, I figured it out, seems like my mesa install was buggy.
It works with the current stable mesa like it should, so this is most likely not a wine issue. Seems like the current mesa-git is broken. With mesa-git the earlier mentioned partial render issue occurs, and software-rendering freezes the game. With 12.0.2 both works.
However, the "Memory access violation" problem with vanilla wine remains even with stable mesa.