https://bugs.winehq.org/show_bug.cgi?id=43153
--- Comment #12 from Michael B toxatec@web.de ---
It possible to be a graphics stack related problem. If you need more debug info, I may provide it.
Can one of you try starting the game with LIBGL_ALWAYS_SOFTWARE=1 to force mesa to do software rendering? I tried that successfully.
LIBGL_ALWAYS_SOFTWARE=1 wine GOTHIC.EXE
Assuming you're not using proprietary graphics drivers.
Maybe decrease the resolution first - the initial conversation took like 2 hours on my Core2Duo laptop :)
Other than that I don't really have a clue, as much as I'd like to help fixing this.. don't you get anything meaningful from the regular console output without any WINEDEBUG=foo paramters?