https://bugs.winehq.org/show_bug.cgi?id=50507
--- Comment #2 from Gijs Vermeulen gijsvrm@gmail.com --- The AppDB mentions:
To run the game, on mesa/nouveau you have to set:
gap_iDepthBits=24 ApplyVideoMode()
Can you try that? It's also described here: https://bugs.winehq.org/show_bug.cgi?id=11970#c49