How to Conquer Escalating Nightmare Dungeons in Diablo 4 Season 9 With Season 9: Sins of the Horadrim, Diablo 4 players are diving headfirst into one of the most dangerous challenges the game has offered to date: Escalating Nightmare Dungeons. For many, survival isn't guaranteed — but with preparation, strategy, and the right builds, it’s possible to emerge victorious.  ...