This game does not have a valid age rating and will be hidden from the German storefront soon.

[EmpressTatjia.TTV]

November 15th this year, every game that doesn't have a German age rating on it's Steam page is going to be HIDDEN FROM THE GERMAN AUDIENCE.

https://partner.steamgames.com/doc/gettingstarted/contentsurvey/germany

PLEASE. please please add an age rating to it, or a whole country won't be able to buy this anymore.

[Make]

Might as well mention that those who are unaware of this change, you can read more about it in here:
https://steamcommunity.com/groups/steamworks/announcements/detail/4678768276768588864

For those who live outside of Germany, you can check if a game has an age rating on a store page by opening the store page in a web browser (while not being logged into Steam) and adding the following country code at the end of the URL:

?cc=de

Since there is only two weeks left, it will be interesting and very sad at the same time to read news about the change once it actually becomes reality.