Hi, due to new German laws and regulations in effect, due to missing Age Ratings in Steam,
any users from Germany can't purchase/acquire one of your four base games and all of your DLCs from Neko Game.
As far as I know, all you have to do is write an Age Rating in your Steam Game's page, which shouldn't even cost money, just a few minutes of your time to make all your content available to German users again.
Thanks for your support and hope you make more games and content in the future, also available to Germans.