The test results you have selected are very old and may not represent the current state of Wine.
Selected Test Results (selected in 'Test Results' table below)
everything I've tested so far (after the required native components are installed):
changing the screen resolution, graphical details, audio settings
playing the game @1440x900 resolution
mouse & keyboard
saving and loading
visuals are okay
audio (using ALSA with the default settings)
What does not
doesn't start without Windows Media Player installed
no mouse and keyboard input without native dinput8.dll
What was not tested
extensive gameplay / completing the game (I've played only the tutorial part of the game)
The following native components were installed via winetricks: corefonts (just because of the Steam client), d3dx9, wmp9, dinput8.
Anti-aliasing can be enabled after the registry key 'Multisampling' set to 'enabled'.
Due to my hardware limitations I got only reasonable framerates on low graphical settings. Disabling Vsync also improves the performance.
AMD Athlon 64 x2 4200+
Nvidia 7600 GT / driver 256.53
3 GB Ram