Thanks guys. As for the "Du/Sie" dilemma, I thought ZOS UI would help me decide, so I tried destroying some beer and guess what it asked:
"Wollt Ihr 7x Goldlager wirklich zerstören?"
Is that even correct? In Czech we use the plural form of "You/Ihr" in formal/polite speech, but 100 years ago we used "They/Sie". Is German switching from "Sie" to "Ihr" like we did?