http://bugs.winehq.org/show_bug.cgi?id=31251
--- Comment #13 from Enrico ml@the-candyman.eu 2012-09-07 14:20:11 CDT --- I actually found a solution to get the game to save. All I did was creating a "tmp" folder in the root folder of the defined harddisk drive.
I have a windows drive "D" defined in wine at path /mnt/data/wine, so when creating an empty "tmp" folder "/mnt/data/wine/tmp" the game seems to use it and it is now running flawless (Deponia, dont know for A new beginning).