Congratz, You have one of the best entries this year. The idea is nothing that I would consider new, except for the way we go to the next dungeon, but it was very well executed. It was nice choice game to make, well done.
PS: If you have the time try out my entry https://itch.io/jam/lowrezjam-2018/rate/293637 nothing special or excelent like your, but I would be glad if you tried it. Well done again
Cheers