Hello! I'm reading through the English rules and this sounds like a lot of fun! Did you base these rules off of any other game to start with?
One thing I did notice with the English translation, there are some missing bits? You have 1W6 instead of 1D6 in a some spots. Also, under the dungeon creation rules, for Passage Contents you have "Umherstreifendes Monster (Stufe des Monsters = Charakterstufe -1)". I haven't used google translate to look it up yet, but that would be something to look into if you do another draft.
Once again though, this looks like a lot of fun and I can't wait to give it a go!