Thank you for the wishlist! A game run it can vary a lot if you know what you are doing at go to the shortest escape it may very well end under 15 minutes. The longest run I'd say 2 hour to 3 if your are clueless and aim for the longer quest. I want to add it but for now I've got a bit of research on how to do it given how the game was made. I 'll probably give the priority in the next update.
RE: Shadows of Lir'Ah - Steam release