Nightmare Dungeons are a vital component of Diablo 4’s endgame, especially in Season 9 where Glyph XP has become central to character growth. Selecting the right dungeon maps and tiers can drastically affect both experience gains and clear speed.

Not all Nightmare Dungeons are created equal. For efficient Glyph XP farming, players should prioritize dungeons with compact layouts and minimal backtracking. Maps like Uldur’s Cave, Sarat’s Lair, and Champions Demise are top picks due to their linear structures and high elite density.

Dungeon affixes in S9 introduce new challenges and can impact Diablo 4 Items clear times heavily. Avoid affixes that reduce mobility or increase enemy health unless your build is specifically tuned to counter them. Instead, target affixes that buff you or debuff weaker mob types.

Tier selection is equally important. Running dungeons slightly below your character’s max potential (around Tier 40–50 for mid-game, 60+ for endgame) allows for faster clears without compromising Glyph XP. Speed and consistency outweigh difficulty when optimizing for time.

Glyph leveling efficiency improves by targeting specific Sigils. Use the Occultist to craft or reroll Sigils for favorable affixes and dungeons. Managing your inventory to carry only relevant Sigils prevents time wasted scanning maps that don’t suit your build.

Players should also build around dungeon farming. Utilize gear that buy Diablo 4 Items enhances AoE and survivability, especially in tight corridors. Strong defensive Aspects like the Iron Blood or Cheat Death procs are essential in higher tiers.

A proper farming loop includes bouncing between two or three high-efficiency dungeons using crafted Sigils. Minimize downtime by planning routes and using towns for quick salvaging and resets. Consider grouping with players farming similar tiers for added speed.

With thoughtful map selection and preparation, players can rapidly level Glyphs and gear, accelerating progression through Diablo 4’s challenging endgame.