I encountered two bugs. One makes it so you can no longer draw cards until
you restart the game, this happens if you click too fast on the campfire I think. The other is something that no shops open until you reload the game, I don't know what triggers that one. Only missing paladin, librarian and gnome in terms of unlocks. Got all the constellations. Capricorn is my favorite constelation so far. The difficulty spike of the last boss is extremely hard but it makes it rewarding to game around it.
The first games I was playing fairy and wiped on the boss even with massive damage spikes. Maybe invisibillity or something could do it but I switched to ogre as said.