2 issues:
1.)There are two language folder, one ".\StarMade\Language" the other one ".\StarMade\Data\Language"
The instruction was to use ".\StarMade\Language" but there is a translated pack.xml at ".\StarMade\Data\Language\german"
2.)The language won't show up in game even I change the settings.cfg and just in case, I have same folder and files for ".\StarMade\Language" and ".\StarMade\Data\Language"
The whole function is currently broken......