Very unsettling. Got me a bit curious what stillborn monstrocity awaits there as a boss (maybe a bit disappointing there wasn't anything out of the ordinary there).
It was very unclear to me that I was looking at an overworld intially, then I was confused as to where I'm located and which nodes are open to travel.
StS style card mechanics are good, maybe 2 Strength for 0 manna seems too powerful.
Honestly a bit too unpleasant for my taste. But that probably means it's doing exactly what it was designed to do!