Escalating Nightmare Dungeons: Diablo 4’s Ultimate Dungeon Gauntlet If you thought Nightmare Dungeons in Diablo 4 couldn’t get more intense, Season 9's Escalating Nightmare Dungeons aim to prove you wrong. This new endgame feature, part of the Sins of the Horadrim update, introduces a multi-dungeon escalation system that stacks difficulty, affixes, and challenge — all while...