https://bugs.winehq.org/show_bug.cgi?id=43627
--- Comment #10 from Martijn makruiten+winehq@hotmail.com --- I tracked down what's causing the issue. It's caused by the game running in 8 bit color. UserPatch has a hidden option (press F5 during install) to run the game in "full screen windowed mode", which forces 32 bit color. If I use that, the issues disappear, but then I'm unable to play the game in fullscreen, so it's not a workaround. I'm up for additional tests, so please let me know what else I can do.