Unique monster

Version 0.18: This article may not be up to date for the latest stable release of Crawl.

Unique monsters are monsters that are generated at most once per game. They are usually much more powerful than normal monsters, but provide much greater experience. As such, they can be considered the "boss monsters" of Crawl (although not every unique is guaranteed to appear in every run, and by no means are you required to slay every unique you encounter).

Wandering Uniques

i Agnes the Wanderer - A zippy spriggan fighter who wields a branded lajatang.

S Aizul the Neglectful Guardian - A disgraced guardian serpent who uses powerful poison magic and a nasty sleeping spell.

H Asterion the Fallen King - A bloodthirsty king who was turned into a minotaur and exiled. He now seeks to carve out a new kingdom with the aid of Makhleb.

R Azrael the Boundless Flame - An efreet who commands a pack of lesser monsters while pelting you with high-power Fire Magic and Hellfire.

o Blork the orc - A fat orc spellcaster who managed to find some rainbow suspenders somewhere.

L Boris, Master of Life and Death - A lich who will revive himself elsewhere after you've killed him once.

g Crazy Yiuf the Enlightened - An insane, cloak-wearing gnoll who defends his forest hut with a quarterstaff of chaos.

@ Donald the Adventurer - An adventurer much like yourself, but with a propensity for both swimming and complaining. Generally comes with a shield of reflection.

e e Dowan, Brother of Duvessa and Duvessa, Sister of Dowan - Twin elves who are never seen apart and who complement each other's strengths. Dowan uses magic while Duvessa prefers a blade.

@ Edmund the Younger - Sigmund's obscure and less threatening younger brother. Generally comes with a decent flail.

i The Enchantress - Queen of the spriggans, she is extremely difficult to hit and has a nasty set of hexes. She owns one of the last surviving sets of faerie dragon armour.

x Erica the Fiery-Tempered - A spellcaster who carries a flaming scimitar, but prefers to use her assortment of conjurations and hexes.

O Erolcha the Cunning - An ogre mage with a variable spell set who can potentially banish the unlucky to The Abyss.

@ Eustachio the Magnificent - A mustachioed summoner who can bog his foes down in a swarm of summoned mammals and imps.

e Fannar the Cold-Hearted - An elven Ice Mage who spawns with Ice Magic-enhancing equipment. Bring cold resistance!

@ Frances the Duchess of Pandemonium - A powerful fighter who once bested a demon lord and thereby gained demonic powers.

@ Frederick the Flawless - A fighter-mage who packs several extremely powerful spells.

w Gastronok the Ponderous - An unusually intelligent elephant slug who gained his magic and his hat by eating a wizard.

5 Grinder - A shadow imp who can easily paralyze and torture low-level adventurers to death.

g Grum the Hunter - A gnoll armed with a polearm who leads a pack of wolves into combat.

@ Harold the Weathered - A bounty hunter on the verge of retirement. He hunts down his quarry with the help of powerful Fire Magic.

g Ijyb the Twisted Goblin - A goblin who is only marginally stronger than his brethren, though he may show up with a dangerous wand.

@ Jessica the Apprentice Sorceress - An apprentice sorceress who uses low-level spells to attack those who disturb her.

g Jorgrun Earthshaker - A dwarven earth elementalist fond of statuary (both creating it and blowing it up).

V Jory the Bloodstained Count - A wealthy vampire who combines mesmerization with devastating magical power.

@ Joseph, a Mercenary - A mercenary who attacks with throwing nets, a sling, and a quarterstaff.

@ Josephine the Decaying Necromancer - An elderly necromancer who devastates the living and supports her undead underlings by hurling ghostly fireballs.

M Khufu the Undying Pharaoh - A greater mummy that combines high durability, smiting, torment, and an extremely dangerous mummy and demon entourage.

@ Kirke, Weaver of Myths - An enchantress who would like nothing more than for you to join her herd of hogs.

@ Louise the Corrupted - A spellcaster who wears surprisingly heavy armour and is capable of banishing the unwary to the Abyss.

R Mara, Lord of Illusions - An exceptionally powerful rakshasa, Mara's mastery of illusions allows him to bamboozle even the strongest of foes. Many adventurers find themselves battling their double.

@ Margery the Dragonslayer - A powerful Fire Elementalist with her own entourage of hell knights.

@ Maud the Forgotten - A warrior princess from a distant land who generally uses rare weaponry.

f Maurice the Thief - An accomplished thief who uses invisibility to rob passersby blind.

M Menkaure, Prince of Dust - The mummified king of a long-forgotten realm who can torment his foes.

A Mennas, the Voice of Zin - A powerful angel whose speed and aura of silence makes escape extremely difficult. Spellcasters beware!

h Natasha, Servant of Life and Death - A wandering felid wizard who has gone searching for her lost master. She has three lives.

o Nergalle the Soulbinder - An orcish necromancer who can summon spectral orcs to fight for her.

c Nessos the Markscentaur - An armoured centaur who pelts his opponents with arrows of poisoned flame.

@ Nikola the Mad Inventor - A mad scientist who is an expert with fighting using electricity of all kinds.

@ Norris the Nihilist - A laid-back spellcaster who debilitates foes before crushing them with powerful two-handed weapons.

K Pikel the Slaver - A big kobold who has taken up slave trading. Carries a branded whip and travels with a band of slaves.

p Player ghost - The restless spirit of another adventurer who perished on their quest for the Orb. Their skills in life are carried over into undeath.

F Prince Ribbit- A cursed prince who is stuck in the form of a blink frog.

@ Psyche the Insane Magess - A maddened mage who is mostly dangerous due to her dagger of chaos or distortion.

T File:Purgy.png Purgy the Meek - An unusually skinny troll that fled from his brethren into the upper levels of the dungeon.

g Robin of the Strong Arm -- A helmeted hobgoblin who inspires her goblin minions before literally flinging them at you.

8 Roxanne, Geomancer Emeritus - A powerful earth mage who turned herself into a statue when a spell went horribly wrong. She can't move, but there's nothing wrong with her magic.

@ Rupert the Wild - A berserker whose powerful roars can disable his foes long enough for him to rush in and crush them.

o Saint Roka the Messiah - An orc warlord of Beogh who travels with a band of followers who believe he is the orcish messiah.

@ Sigmund the Dreaded - The bane of low-level adventurers, Sigmund carries a couple of dangerous spells and a wicked scythe.

T Snorg the Insatiable - An exceptionally fat troll who will go berserk at the slightest provocation.

Q Sojobo, King of Tengu - King of the tengu, Sojobo is not only a powerful warrior but a master Air Mage.

K Sonja the Graceful Assassin - A kobold assassin who always carries curare needles and a nastily-branded short blade.

@ Terence the Incautious - A weak fighter who appears near the very beginning of the dungeon.

o Urug the Orcish Ballista - A one-eyed orc who carries a pack of javelins and a heavier weapon than usual.

g Wiglaf the dwarf - A dwarven fighter of Okawaru, Wiglaf will buff himself before rushing into combat.

D Xtahua the Ancient - An ancient and exceptionally powerful fire dragon.

Snake Pit Unique

N Vashnia the Elite Marksnaga - A naga sharpshooter who possesses far more skill with both weaponry and Translocations than her underlings.

Spider's Nest Unique

H Arachne the Weaver - Half-spider, half-woman, Arachne and her pets will quickly ensnare and poison those who blunder unprepared into her lair.

Swamp Unique

D The Lernaean hydra - A hydra with a mind-boggling 27 heads. Those who allow it into biting range are swiftly devoured.

Shoals Uniques

m Ilsuiw, Witch of the Tides - A skilled merfolk aquamancer who often travels with a large band of her kin.

C Polyphemus the Watchful Shepherd - A cyclops who has somehow managed to tame a herd of death yaks and catoblepi.

Slime Pits Uniques

J Dissolution, High Priest of Jiyva - An intelligent jelly that eats its way through rock walls in search of those who would oppose the Slime God.

J The royal jelly - Jiyva's primary worshipper and guardian of the Slimy Rune of Zot, the Royal Jelly will quickly overwhelm interlopers with an army of jellies. Should someone manage to kill it, the Slime God will also die.

Hell Uniques

D Serpent of Hell - A powerful dragon that changes depending on which branch of Hell you.

z Murray the Demonic Talking Skull - A mobile curse skull with a nasty bite and even nastier necromantic spells.

& Geryon, Gatekeeper of Hell - Three-headed Geryon presides over the Vestibule of Hell. Those who wish to enter the Hells proper must first defeat him and his followers.

C Antaeus, Guardian of Cocytus - Guardian of the Icy Rune of Zot. Easily the beefiest enemy in the game, Antaeus eschews reliance on underlings and prefers to crush intruders himself using his massive body and powerful cold and electric magic.

& Asmodeus, Prince of Gehenna - Guardian of the Obsidian Rune of Zot. Asmodeus and his followers will quickly incinerate any interlopers with insufficient fire resistance.

& Dispater, Lord of the Iron City - Guardian of the Iron Rune of Zot. Dispater will crush adventurers with powerful Earth Magic and legions of powerful demons.

& Ereshkigal, Queen of Tartarus - Guardian of the Bone Rune of Zot. Those who face her and her servants risk being drained of all life.

Pandemonium Uniques

1 Ignacio, Master of Excruciating Pain - A mortal who was rewarded with demonhood and became an executioner. He still carries his favorite executioner's axe.

& Cerebov, Demon Lord of Fire and Steel - Guardian of the Fiery Rune of Zot, lord of a host of balrugs, and wielder of his signature sword, which allows him to partially ignore fire resistance. Quite possibly the single most dangerous foe in the entire game.

& Gloorx Vloq, Demon Lord of Darkness - Guardian of the Dark Rune of Zot and leader of a multitude of executioners. He is exceptionally fast and extremely deadly to both the living and the undead.

& Lom Lobon, Demon Lord of Forbidden Knowledge - Guardian of the Magical Rune of Zot and head of a cabal of wizards. In addition to his followers, he himself has extremely powerful ice and lightning magic.

& Mnoleg, Demon Lord of Chaos - Guardian of the Glowing Rune of Zot and master of everything hideous, tentacled, and mutagenic. He and his minions will quickly deform even the hardiest of warriors.

Realm of Zot Unique

d Tiamat, Avatar of the Dragonlord - An exceptionally powerful draconian whose color, breath weapon, and resistances are constantly shifting. Comes with a dragonskin cloak and a large retinue of draconian followers.

Dungeon Sprint Uniques

C Chuck the Collector - A stone giant armed with a large rock of returning and an anachronistically awesome cap.

C The Iron Giant - A colossal construct capable of firing iron shots and summoning iron elementals.

Y Nellie, Star of the Show - Standard hellephants cannot compare with Nellie in terms of raw ferocity or adorableness.

Retired Uniques

@ Duane - A large-eared mercenary who had rather average abilities.

@ Francis - An aged wizard who had an assortment of spells.

@ Jozef - A mercenary who would poison and slow opponents before moving into melee or pelting them with sling bullets.

@ Michael - A human spellcaster who had a very basic spell list.

@ Norbert - A human warrior who had little in the way of distinguishing characteristics.

p Terpsichore - A phantom who would have been able to bring nearby weapons to life as her allies.

N Lamia- Although stunningly beautiful, this sorcerous naga queen was cannibalistic and mad.

Generation

While every game will present a fair number of them, most uniques are not guaranteed to exist in a given game. The only ones who are guaranteed are:

• The four unique Pandemonium lords: Cerebov, Gloorx Vloq, Lom Lobon, and Mnoleg
• The four unique Hell lords: Antaeus, Asmodeus, Ereshkigal, Dispater
• Geryon
• The Serpent of Hell
• The royal jelly
• If the Shoals are generated, Ilsuiw is guaranteed to appear in them

Source Code Notes

From mon-util.h, line 133:

M_UNIQUE            = (1<<21),        // monster is a unique

History

Lamia and Jorgrun were added in 0.12

Sojobo was added in 0.13

0.14 removed Lamia and introduced Natasha, Vashnia, and Asterion.

In 0.15, most uniques were given special titles.

0.16 added Robin.