http://bugs.winehq.org/show_bug.cgi?id=10636
--- Comment #22 from Stefan Dösinger stefandoesinger@gmx.at 2009-05-26 09:49:54 --- I once wrote a test, and I think it is in dlls/d3d9/tests/visual.c that shows that disabling the D3D depth test also disables depth buffer writing, like in GL. That's a d3d9 test though. Maybe this game uses a different d3d version which has a different behavior.