Bosses

Bosses are a category of enemy NPCs which are identifiable by their unique names. Bosses are usually stronger than the other creatures in their area, have the potential to spread Curses, and often drop unique loot.

First Kill Mechanic

Bosses generally use a First Kill mechanic which impacts the loot they drop. When a boss is defeated by a player, an invisible personal three-hour timer starts to count down. If they defeat the boss again during the countdown, they will receive less loot than when they first defeated the boss. Defeating the boss while the timer is counting down does not extend or reset the timer. Many Bosses have specific items they can only drop during their First Kill and not during repeated kills until the timer resets.

Items listed as a Unique Item are not guaranteed to drop on a First Kill, but usually will.
The quantities listed in First Kill Loot and Repeat Kill Loot columns represent the minimum possible loot. Sometimes more items will drop than what is listed.
The three bosses in Kur Tower/Necromancer's Courtyard each have an 8% chance for a

Harp
to appear during a First Kill.
Bravius the Bewildered's

Nose Ring of Destructive Tendencies
has a 100% chance to appear during a First Kill.

Boss	Unique Item	First Kill Loot	Repeat Kill Loot
'Beakhorse'	Beakhorse's Collar	???	???
'Fangy' Lim
Adolescent Storm Spider
Aktaari Princess
Aktaari Queen
Algapa		Algapa's Calling Card , 3 Miscellaneous items.	Algapa's Calling Card , 2 Miscellaneous items.
Ancient Cold Elemental
Ancient Fire Elemental
Ancient Nature Elemental
Anhinda	Anhinda's Flask	???	???
Arbulekh
Argu the Half-Human
Arkura
Asila the Spark
Asterion	Asterion's Hammer	12 miscellaneous high-level items.	1 miscellaneous item.
Baruti
Beauregard
Beeoenix
Beer-Embittered Scray
Betra the Cold	Betra's Coif	???	???
Biggish Tornado Spider
Billy Boat-Biter
Bleddyn
Bloodmaw
Bloodsoaker		3 miscellaneous items.	1 miscellaneous item.
Bluntjaw the Bear
Bobbikins
Bonfire Puck	Bonfire Summoner	2-3 miscellaneous items.	1 miscellaneous item.
Bravius the Bewildered	Nose Ring of Destructive Tendencies	3 miscellaneous items.	1 miscellaneous item.
Buttercup
Captain Evergloam	Captain Evergloam's Harness	???	???
Chet Thunder	Chet Thunder's Club	???	???
Chitterface		4 miscellaneous items.	1 miscellaneous item.
Chopjaw
Chuckleflap
Ciervos The Shadow	Ciervos's Anklets	Large batch of Level 40 equipment.	Miscellaneous items.
Claudia	Claudia's Pouch	12-15 miscellaneous items.	1 miscellaneous item.
Coldfeather
Commander Ferrows
Crazy Terry		Several pieces of Level 50 equipment.	No more than 1 piece of equipment.
Dalvos's Astral Projection
Dementia Puck		Dementia Puck's Key , 3 miscellaneous items.	Dementia Puck's Key , 1 miscellaneous item.
Despair Puck
Doctrine-Keeper		Guardian Trident , Potential Recipe Scroll (see below), 3-5 miscellaneous items.	???
Drug-Infused Super Slime
Eater of Would-Be Armorsmiths
Eeaeiikik	Eeaeiikik's Channeling Ring	???	???
Elzehatl	Elzehatl's Insignia	2 miscellaneous items.	1 miscellaneous item.
Empusa	Empusa's Mask	???	???
Envy Pump
Everhorn (mob)	Everhorn	???	???
Eye of Fate
Fashnagar the Prognosticator
Feverdance
Fluffy
Forgotten Loading Golem		4-5 miscellaneous items.	1 miscellaneous item.
Frothimir the Forever-Flan
Fugorg		3 miscellaneous items.	1 miscellaneous item.
Fun Guide
Fun Guile
Gajus the Big-Headed		3 miscellaneous items.	1 miscellaneous item.
Gazluk Clutchmaster
General Pask		3 miscellaneous items.	1 miscellaneous item.
George
Gluzax
Gobblejack the Rebuker
Gorgos		Ogre Stomach , 3 miscellaneous items.	1 miscellaneous item.
Gravamux	Gravamux's Key	Harp (~8% chance), 2-3 miscellaneous items.	1 miscellaneous item.
Graz	Graz's Shackles	2 Jewelry items.	Miscellaneous items.
Greta		Myconian Jelly , 2 miscellaneous items.	1 miscellaneous item.
Grottofang		4 miscellaneous items.	1 miscellaneous item.
Gruzark	Gruzark's Chapbook	Miscellaneous items.	Miscellaneous items.
Guard Captain Lusssha	Lusssha's Trident	???	???
Guardian Crystal
Gue	Gue's Remnant	???	???
Gut-Ache	Gut-Ache's Chopper	???	???
Guzyerp
Haridius The Exemplary	Gulagra Orb	Several pieces of equipment.	No more than 1 piece of equipment.
Healing-Suit Tester
Hissy		3 miscellaneous items.	1 miscellaneous item.
Hot Flash
Hotfeather
Imarak	Imarak's Mind Changer	???	???
James Eltibule
Kamehaza
Karnag The Imaginary Wolf		3 miscellaneous items.	1 miscellaneous item.
Katarina Eltibule
Keerla		Harp (~8% chance), 2-3 miscellaneous items.	1 miscellaneous item.
Khyrulek	The Galvanizer	2 miscellaneous items.	1 miscellaneous item.
Khyrulek's True Form
Kiralem		3 miscellaneous items.	1 miscellaneous item.
Kremmu the Warden
Lady Eleanor
Lethargy Puck
Levaxika the Sculptor
Lieutenant Umaive
Lomas		Harp (~8% chance), 3 equipment items.	1 equipment item.
Lord Sedgewick	Sedgewick's Honor	4 miscellaneous items.	No more than 1 piece of equipment.
Lord Serbule	Lord Serbule's Pendant	???	???
Maligno	Skull of Maligno
Mama Scorpion
Maronesa		3 miscellaneous items (usually equipment)	1 miscellaneous item.
Megaspider		3 miscellaneous items.	1 miscellaneous item.
Mien of Quietus
Minizhemu
Miss Chievous
Mortimer
Mother Snail	Snail Mother's Face	3 miscellaneous items.	1 miscellaneous item.
Mr. Squeaky
Mudtusks
Mudtusks' Harem
Murdebok the Valiant	Murdebok's Blade	???	???
Murklinger
Nameless Guardian	Nameless Guardian's Shield	3 miscellaneous items.	1 miscellaneous item.
Old Crusty	Old Crusty's Backside	1-2 pieces of equipment.	Miscellaneous items.
Old Fangsworth
Old Fruitless
Old Snouty
Olugax The Ever-Pudding		6-9 assorted green Gems, 2 pieces of Level 50 Equipment	Toxic Sludge
Omegaspider		3 miscellaneous items.	1 miscellaneous item.
Orloaka	Orloaka's Staff	1 useful item.	Miscellaneous items.
Peacemaster Guztok
Rathla the Chemist	Rathla's Flask	???	???
Ratkin General (SquuuEaEak)
Ratkin King (SqUUeak)
Remeka the Compassionate
Rhino Guardian		4 miscellaneous items.	1 miscellaneous item.
Rubgag	Rubgag's Dancing Shoes	???	???
Sacrificial Hippo
Sacrificial Scray
Sacrificial Shark
Sacrificial Slime
Sacrificial Snail
Salmpo
Scion of Discord		4 miscellaneous items.	No more than 1 piece of equipment.
Scion of Norala		3 equipment items.	1 item, usually equipment.
Serisa Eltibule
Sherzat		Ring of Acid Resistance , 3 miscellaneous items.	1 miscellaneous item.
Shockybug
Spiderlord	Venom Piercers	3 miscellaneous items.	1 miscellaneous item.
Stolen War Golem
Storeroom Supervisor
Stove
Superspider		3 miscellaneous items.	1 miscellaneous item.
Tal-Saka
The Big Slime		3 miscellaneous items.	1 miscellaneous item.
The Big Widow
The Flower Child	The Flower Child's Prodder	2 miscellaneous items.	1 miscellaneous item.
The Fog	Fog Horn	1-2 pieces of jewelry.	Miscellaneous items.
The Forgotten Accountant
The Geyser Slug		Toxic Sludge x2	1 miscellaneous item. (Usually Toxic Sludge)
The Hound of Amaluk Valley
The Magnifier
The Maimer
The Mangler
The Masher
The Mauler
The Mutilator
The Problem Spider
The Productivity Expert
The Shower Slime
The Thorn of Decay		Winter Nexus Key , 3 miscellaneous items.	1 miscellaneous item.
The Unbreakable Worg
The Wooly Bastard
Tidal	Tidal's Circlet	2 miscellaneous items.	1 miscellaneous item.
Timothy Elerimon	Elerimon Staff	2 equipment items.	1 miscellaneous item.
Tolar the Bear-Raised
Tolmar the Snake Master
Tremor	Tremor's Bow	2 miscellaneous items.	1 miscellaneous item.
Tumak the Betrayer
Tyxr the Guardian Elemental
Unfun Guy	Unfun Staff	???	???
Urg-Ak Faqu
Urraghur		4 miscellaneous items.	1 miscellaneous item.
Ursula	Ursula's Gloves	2 miscellaneous items.	1 miscellaneous item.
Utimak The Introverted
Vagreef the Flameproof	Vagreef's Anti-Burn Hat	???	???
Vemuta the Lecturer	Vemuta's Attention Focuser	???	???
Venenae	Harness of Poisons	2 miscellaneous items.	1 miscellaneous item.
Vulka the Snarl
Vurrkan		3 miscellaneous items.	1 miscellaneous item.
Warmaster Brukal
Warmaster Juk
Wind Crawler
Windbiter
Xegatis	Beaker of Xegatis	Miscellaneous items.	Miscellaneous items.
Yeti High Priest
Young Kraken
Zotras the River Guardian
Zukelmux The Intransigent	Zukelmux's Insignia Ring	???	???