D2R Hell Immunity Calculator
Select your build’s damage types to compare 42 Hell farming entries, including all 32 base level-85 areas and popular boss runs. Green = no listed immunities to your damage; yellow = damage types cover one another; red = at least one monster needs another damage source. Choose from 8 build presets or select your own damage types.
Cold spells only; mercenary damage and Cold Mastery are not modeled.
Act I–V, then highest area level first. Uses base Hell area level; named bosses can have different monster levels.
Base Hell expansion areas, before Sunder Charms, curses, Conviction or gear effects. Includes regular spawn pools, minions and named bosses with fixed modifiers. Random boss modifiers can add immunities. Colors describe damage coverage, not survival or clear speed. Routes through other areas and Terror Zone encounters are not included.
Reading the Results
Green: No listed monster is immune to your selected damage. This is not a survival rating: dangerous attacks and random boss modifiers still matter.
Yellow: Some selected damage is resisted completely, but each listed monster can take at least one usable selected damage type. For example, separate fire-immune and cold-immune monsters can be covered by a fire/cold build.
Red: At least one listed monster blocks every damage type you can use against it. The rest of the area may still be farmable; check the named blockers on its card.
Spawn pools vary between games. Named bosses include their fixed modifiers; random modifiers can add more immunities. Summon Necro includes Corpse Explosion’s fire damage, which needs a corpse. FoH’s Holy Bolts only affect demons and undead and bypass their magic immunity; the lightning strike is checked separately.
The Patch 2.4 notes explain Holy Bolt target changes. Monster pools and immunities are derived from the extracted game tables, with fixed bonuses checked against Blizzard’s monster modifier reference.
Farming Suggestions
Lightning Javazon: Arcane Sanctuary has no lightning-immune regular monsters. Ordinary Hell Bovines are also non-immune, but the Cow King is lightning immune. Ancient Tunnels and The Pit both contain lightning immunes.
Fire Sorceress: Stony Tomb and Mausoleum have no fire-immune regular monsters. Andariel has −50% fire resistance, although surrounding monsters and the route to her are separate considerations.
How do Hell immunities work?
A monster is immune when its resistance to a damage type is 100% or higher. Conviction can lower fire, cold and lightning resistance; Lower Resist also covers poison. Amplify Damage and Decrepify can break some physical immunities. These effects work at one-fifth strength when breaking an immunity, so they do not break every immunity. Conviction and Lower Resist do not lower magic resistance. Cold Mastery and ordinary −enemy resistance gear cannot break an immunity on their own.
Where can a Blizzard Sorceress farm without cold immunes?
Ancient Tunnels, Mausoleum and Arachnid Lair have no naturally cold-immune regular monsters in Hell. Unique monsters can still gain cold immunity from random modifiers. Stony Tomb is another option, but Creeping Feature on Level 2 is cold and poison immune.
Where can a Hammerdin farm in Hell?
The Pit and Chaos Sanctuary have no innate magic-immune monsters in their regular pools. Worldstone Keep Level 2 can spawn magic-immune Horadrim Ancients, and Baal’s second wave includes magic-immune Unravelers. Blessed Hammer needs another damage source for those monsters.
Can Sunder Charms break Hell immunities?
Yes. A matching Sunder Charm sets an immune monster’s resistance to 95%, leaving it vulnerable but highly resistant. Conviction, Lower Resist and Cold Mastery work at one-fifth effectiveness against sundered immunities. The calculator shows immunities before these effects; it does not calculate damage after sundering.
What does Area Level 85 mean?
These are base Hell expansion area levels, before Terror Zone scaling. Normal monsters generally use the area level, champions add two levels, and unique monsters and their minions add three. High-level equipment can drop from eligible monsters, but treasure classes, monster level and special drop sources still matter. Area level alone does not mean every monster can drop every item.
See Blizzard’s Conviction and curse descriptions, the original Sunder rules and Patch 2.6 Cold Mastery change.
Current Sunder Drops — Patch 3.3
In Reign of the Warlock, Latent Sunder Charms can enter the regular Magic Find drop pool in Hell, whether the area is Terrorized or not. Patch 3.3 raised their minimum drop level to 75 and reduced the Magic Find drop rate; the Herald Sunder rate was unchanged.
The final Patch 3.2 rules start the increased Herald chance at Tier 1. Tiers 3–4 get twice that bonus chance and Tier 5 gets three times it; player count does not modify that increased chance. The PTR’s extra charm/amulet reward after a failed Sunder roll was removed before release.
Checked September 12, 2026 against Blizzard’s Patch 3.3 notes and final Patch 3.2 notes. These Latent/Herald rules apply to Reign of the Warlock; original Sunder drops in Lord of Destruction use the Terror Zone system.
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