Hello there,
I would be ready to help translate the game to German ^^ 
I’m a native German and understand English quite well, so I think I can help working on a localisation.
If interested, text me: Buddy397@gmx.de
There is a discussion on the steam forum about German translation as well. The user named “Florian” sounded like they had made some progress. You may want to reach out to them.
Good luck! I’d love to be able to play the game in German but I’m not a native speaker so I’m probably not the best person to translate into it.