>>5 Honestly though, I really fukt up one of the puzzle in the beginning part, since it was needlessly complicated. So I kinda gave them a reason to just give up since they hadn't been too far off into the rabbithole, a valuable lesson in puzzle making, DO gradually ramp up the difficulties, DONT spike it up in the earlier parts. That part needs a whole detailed planning since you usually work them out from end to start.
Anyways, I suck at brute-decrypting. So sorry about that xP can't really do much about your secret message