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)
What works
installation
online activation
playing the game @1024x768 resolution on high details (quality=8)
audio
changing screen resolution, graphical details etc. from the options menu
subtitles
keyboard & mouse control
What does not
shader issue: with the default 'UseGLSL=enabled' setting, the game is either too dark, or objects, characters are plain black in the main game
What was not tested
everything was tested, I finished the game
Additional Comments
Digital distribution version of the game, obtained via Gamersgate.
The game doesn't contain the Telltale launcher, it starts up without issues.
Only native d3dx9_41.dll was needed, it was placed to the game's directory by the installer itself.
One needs to disable GLSL via the following registry entry:
HKEY_CURRENT_USER\Software\Wine\Direct3D\UseGLSL -> "disabled"
Apart from that no other problems were observed, the game is fully playable.
Nvidia 7600 GT card with driver 195.36.24