if you play long enough, the whole dungeon becomes unstable, the screen start to shake, monsters get buffed, there are eyes of monster blinking around
also there is a 1D6 roll before your run that determines the difficulty of the dungeon, you don't control it, it could be a easy or really hard run, thats unstable
but I understand it might be somewhat simple, we had other ideas of having the character with a "debuff" trait, but this wasn't fun for the game, neither difficult for replayability
although I really appreciate your comment, thanks! I'll check your game
