Where do the enemies for the unique enemy achievements spawn?

For the achievement Never Seen That Before, you need to kill one of the listed unique enemies. For the achievement Special Snowflakes, you need to kill 15 of these same listed unique enemies. For the achievement A Unique Collection, you need to kill all of these listed unique enemies. Where are they usually found (what zones, and in what general directions/areas within those zones)? Do some spawn more predictably than others?

Special Snowflakes


There are 82 of these and they are all found randomly. I've added all the ones that I've confirmed personally to start with plus those listed on the Diablo 3 database that I've verified on other sites. For the sake of completeness and simplicity, I'm posting this as a community wiki post so that people can add what they find:

Act I

  • Bellybloat the Scarred, Infected Monstrosity - Cathedral Level 4
  • Captain Cage, Commander of the Dead - Cathedral Level 4
  • Cudgelarm, Undead Mauler - Cathedral Level 2
  • Dreadclaw the Leaper, Rodent of Unusual Size - Fields of Misery
  • Drury Brown, Thief of Bones - Defiled Crypt
  • Ebenezer Samuel, Deceased Scribe - Old Tristram Road / Mass Grave
  • Fecklar's Ghost, Horror of the Shadows - The Festering Woods
  • Firestarter, Burn to a Cinder - Cathedral Level 2
  • Jezeb the Conjuror, Cultist Beast Caller - Leoric's Manor
  • Logrut the Warrior, Fierce Moon Clan Fighter - Highlands Crossing / Southern Highlands
  • Lorzak the Powerful, Bearer of Frost - Southern Highlands
  • Lucious the Depraved, Thief of Corpses - Cemetery of the Forsaken
  • Mange, Vicious Infected Beast - The Weeping Hollow
  • Merrium Skullthorn, Plagued Skeletal Fighter - Cathedral Level 2
  • Qurash the Reviled, Plaguespinner - Caverns of Araneae
  • Ragus Grimlow, Gorged Undead Brother - Cathedral Level 1
  • Rathlin the Widowmaker, Plagueweaver - Caves of Aranae
  • Red Rock, Heart of Fire - Southern Highlands
  • Sarella the Vile, Cruel Servant of the Coven - Leoric's Manor Courtyard
  • Venimite, Tiny and Deadly - Caverns of Araneae
  • Zhelobb the Venomous, Broodspawn of the Queen - Caverns of Araneae

Act II

  • Ashek, Diminutive Fallen Fighter - Black Canyon Mines
  • Beyatt, The Elusive One - Stinging Winds, Lost Caravan subarea
  • Blarg the Imp, Frenetic Fiery Creature - Desolate Sands
  • Bloodfeather, Winged Desert Predator - Desolate Sands
  • Gart the Mad, Maniacal Fallen Master - Howling Plateau
  • Hazzor the Viper, The Sibilant - Sewers of Caldeum
  • Hellscream, The Render - The Unknown Depths
  • High Cultist Murdos, Cruel and Powerful Cult Acolyte - Alcarnus
  • Mage Lord Caustus, Guardian Lord of Poison - The Storm Halls
  • Mage Lord Flaydren, Guardian Lord of Lightning - The Storm Halls
  • Mage Lord Ghuyan, Guardian Lord of Fire - The Storm Halls
  • Mage Lord Skomara, Guardian Lord of Frost - The Storm Halls
  • Otzi the Cursed, Infected Creature of Death - Eastern Channel
  • Raiha the Vicious, Swiftness of a Cat - Desolate Sands
  • Razormouth, Terror of the Sand - Black Canyon Mines
  • Saha the Slasher, Infected Terrifying Claws - Howling Plateau
  • Sammash, Coven Thug - Alcarnus
  • Shondar the Invoker, Master of the Threshold - Alcarnus
  • Stinging Death Swarm, Relentless Cloud of Pain - Eastern Channel / Western Channel
  • The Archivist, Dark Lorekeeper - The Unknown Depths
  • Thrum, Giant Stone Mauler - Realm of Shadow
  • Torsar, Storm of the Desert - Dahlgur Oasis
  • Yakara, Savage Serpent Warrior - Eastern Channel
  • Yeth, Hound of Pestilence - Road to Alcarnus

Act III

  • Axegrave the Executioner, Heads Will Roll - The Keep Depths Level 2
  • Axgore the Cleaver, Lord of the Phasebeasts - Core of Arreat
  • Bashface the Truncheon, Powerful Demon Warrior - Stonefort
  • Belagg Pierceflesh, Bone and Arrow - The Keep Depths Level 3
  • Blarg the Foul, Diseased Warrior Brute - Bridge of Korsikk
  • Captain Dale, Former Guard Captain - The Keep Depths Level 1
  • Charuch the Spear, Deadly Blood Clan Ranger - Tower of the Cursed level 1
  • Chiltara, Vile Frost Stalker - Caverns of Frost Level 2
  • Demonika the Wicked, From the Heart of Hell - Tower of the Damned Level 1
  • Direclaw the Demonflyer, Swift Winged Death - Rakkis Crossing
  • Dreadgrasp, Tendrils of Evil - The Battlefields
  • Gholash, Savage Fiery Brute - Tower of the Damned Level 1
  • Gormungandr, Serpent of Arreat - Arreat Crater Level 1
  • Gorog the Bruiser, One-Thousand Pounder - The Core of Arreat
  • Growlfang, Bite Much Worse Than Bark - Arreat 1
  • Gugyn the Gauntlet, Impassable Barrier - The Keep Depths Level 3
  • Haxxor, Wielder of Giant Axes - Tower of the Cursed Level 2
  • Hyrug the Malformed, Forgotten Scourge - Tower of the Cursed Level 1
  • Lummock the Brute, Enraged Bone Breaker - Rakkis Crossing
  • Marchocyas, Winged Horror - Skycrown Battlements
  • Mehsak the Abomination, From the Depths of Arreat - The Battlefields
  • Riplash, Thief of Souls - Tower of the Damned Level 2
  • Severclaw, Fiery Crawler - Arreat Crater Level 1
  • Shandra'Har, Vile Plagued Conjuror - Rakkis Crossing
  • The Crusher, Just Passin' By - Tower of the Damned Level 2
  • Thornback, Spiked Fire Beast - The Keep Depths Level 1
  • Vicious Gray Turkey, Delicious Armored Beast - The Keep Depths Level 3

Act IV

  • Grimnight the Soulless, Shadow of Death - Silver Spire Level 2
  • Haures, Hand of Ruin - Silver Spire Level 2
  • Khatun, Sky Terror - Gardens of Hope 1st tier
  • Kysindra the Wretched, Lust's Forlorn - Silver Spire Level 1
  • Pyres the Damned, Eternity of Fire - Silver Spire Level 1
  • Rhau'Kye, The Eye of Flame - Silver Spire Level 2
  • Sao'Thall, Embodiment of Hatred - Silver Spire Level 2
  • Slarg the Behemoth, Massive Hellbeast - Silver Spire Level 1
  • Torchlighter, Breath of Flame - Gardens of Hope 2nd Tier (Possibly 1st Tier)
  • Veshan the Fierce, Cloaked by the Unseen - Gardens of Hope 1st Tier

If you edit the lists above, please note the specific area and sub-area where you found them.


Edit: Since skovacs1 posted another list, I am only updating this one with a few that I personally find. I may reorganize this to be more generally useful in future.

I found an incomplete list on the Diablo III database

Act I

  • Bellybloat the Scarred, Infected Monstrosity - Cathedral Level 4
  • Dreadclaw the Leaper, Rodent of Unusual Size - Fields of Misery
  • Drury Brown, Thief of Bones - Defiled Crypt
  • Venimite - Caverns of Araenae (credit Tetu on d3db)
  • Gorog the Bruiser - Southern Highlands (credit to Lunco)
  • Lorzak the Powerful, Bearer of Frost - Southern Highlands
  • Lucious the Depraved, Thief of Corpses - Cemetery of the Forsaken
  • Mange, Vicious Infected Beast - The Weeping Hollow

Act II

  • Ashek, Diminutive Fallen Fighter - Black Canyon Mines
  • Beyatt, The Elusive One - Stinging Winds, Lost Caravan subarea
  • Bloodfeather, Winged Desert Predator - Desolate Sands
  • Razormouth, Terror of the Sand - Black Canyon Mines
  • The Archivist, Dark Lorekeeper - The Unknown Depths
  • Thrum, Giant Stone Mauler - Realm of Shadow

Act III

  • Axegrave the Executioner, Heads Will Roll - The Keep Depths Level 2
  • Axgore the Cleaver, Lord of the Phasebeasts - Core of Arreat
  • Blarg the Foul, Diseased Warrior Brute - Bridge of Korsikk
  • Chiltara, Vile Frost Stalker - Caverns of Frost Level 2
  • Dreadgrasp, Tendrils of Evil - The Battlefields
  • Growlfang, Bite Much Worse Than Bark - Skycrown Battlements
  • Gugyn the Gauntlet, Impassable Barrier - The Keep Depths Level 3

Act IV

  • Sao'Thall, Embodiment of Hatred - Silver Spire Level 2
  • Torchlighter, Breath of Flame - Guardens of Hope 2nd tier

Everyone questing for the Staff of Herding is going to kill Chiltara, he drops the gibbering gemstone. Another post I read places Beyatt in Black Canyon Mines.