Yeah ... nobody likes Acheron. That place has been the biggest challenge for me to balance of anywhere else in the quest. First, I went to one extreme, and it was extremely frustrating and unfair. Then, I went to the other and it was so simple it wasn't even fun. I was hoping this would be somewhere in the middle, with the black blocks outlining basic paths to follow, but you still have to find your way onto those paths ... but I can still see it needs some work. I think one of the biggest problems is that if someone finds their way out and then dies, they continue back inside, and instead of remembering the way out and going "I can get there really quick, now!" they forget and think, "I have to start all over!" Maybe I'll try to outline the exit path a little more clearly. Sorry it gave you such trouble.
Regen means rain in German? Interesting. I use it the same way Final Fantasy games do, as short for "regeneration."