Thanks so much for playing it man! I really appreciate it and I'm glad you liked it, unfortunately I didn't have time to watch your live, but just now I saw the recording, I don't know any german :( but it looks like you enjoyed it hahaha, again, thanks a lot my friend!
I can't say that the game has support for controllers, that's why it didn't work for you, I hope I can make a good support later, at the moment it's very hard for me because I don't know much about programming :(
The game has many many secret items, two different endings and other things, I understand that you could not understand well what the books are about (basically they are fragments of lore), but if at some point you play it again, I hope you can discover more things!