I'm not sure where you are in Germany, but I am based in Stuttgart. I'm using ClassCraft with English speaking students, but if you are close - let me know and we can knock heads together!
UN Global Goals Quest
HEY YALL! I made one about the UN's Global Goals. I made this short so that even free accounts can use it (a good way to introduce newbies to quests) https://game.classcraft.com/import/quest/29ffhy...