This game requires dgVoodoo DLLs and disabling of the framerate limiter in Steam Deck Game Mode

1. Navigate to https://dege.freeweb.hu/dgVoodoo2/dgVoodoo2
2. Download version dgVoodoo v2.81.2. Newer versions haven't worked for me
3. Open the game files from Steam .../Nancy Drew Last Train to Blue Moon Canyon
4. Extract the zip and copy the contents of MS/x86 to the game install directory
5. (optional) copy dgVoodoo.conf to the game install directory and change the setting in the file dgVoodooWatermark to false to remove the watermark
6. Set the launch options to

   WINEDLLOVERRIDES="D3D8.dll=n,b;D3D9.dll=n,b;D3DImm.dll=n,b;DDraw.dll=n,b" %command%
   

7. When launching the game in Game Mode make sure to enable "Disable Frame Limit" to prevent laggy and flickering cursor