If you are concerned to save files not created or you are not able to save the game , here is what I will provide you with. So it appears that you may be having an corrupt file and you can correct the file manually, without replacement. So al you need to do is open the original and make the modifications.
and you need to change it to:
This will tend to saves you redirect a folder from my profile in the game folder. You then need to run the game after you have made specific changes and then start a new game and make the saves. The game will tend to generate a folder something like this "...\risen 2\SaveGames" and will store there a new save game. You need to create a folder "...\risen 2\savegames " and copy there the old saved games If you previously have a few saves. If the problem exists , you need to make some attempts to run the game as administrator by right clicking and then running it as administrator. If you are running Windows 7, the executable is in ...\Valve\Steam\SteamApps\common\risen2\system\risen2
the saved games for all user profiles on your system will be shared after you have made all the fixing.