[lvviera]

The first time I installed the game I downloaded the windows version and installed it with wine, that created most of the files, then I copied all the .sdb and .idx files to another directory and unistalled the wine game. After that I downloaded rolauncher in the same directory with the .sdb and .idx. Then used a console to start the game and voila! most of the game is already installed. I think that's what you need.