So, I downloaded the game, installed it, started it, aaaaand: everything's English. I know that the retail version asks you during the installation process, but since gog.com-games use a different setup assistant, I couldn't find that option. I couldn't find an option in the config either, but I'm not that good at this. So if anyone has a clue how to switch to German, that help would be much appreciated,

Edit: Sorry, I wasn't able to read the text beneath the "mark as question"-checkbox

German language pack is visible in the game card now.

thanks a lot, I don't know if I would've looked there again so soon :)

You're welcome :).