Kattlekruk World 5 Boss Guide - IdleOn

Aleph

October 2, 2025

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Kattlekruk is the World 5 Boss found at the end of Smolderin Plateau; once defeated you'll be able to unlock World 6. This boss has three difficulties: Normal, Chaotic and Nightmare.

• Kattlekruk's Boss Mechanics
• Kattlekruk Equipment

You can access Kattlekruk from Smolderin Plateau / Miner Mole Outskirts, using the Kruk's Volcano Key.

Unlike previous bosses, the boss key for Kattlekruk drops from mobs, so you can farm an unlimited amount! It is dropped from four different mobs:

• Biggole Mole - 1 in 75,000 chance
• Crawler - 1 in 50,000 chance
• Tremor Wurm - 1 in 25,000 chance
• Domeo Magmus - 1 in 2 (miniboss)

There are three difficulties of the Kattlekruk Boss Fight that you can face:

Difficulty	HP	EXP	Keys Required
Normal	100,000,000,000 HP	20,000,000 EXP	1 Key
Chaotic	2,500,000,000,000 HP	30,000,000 EXP	5 Keys
Nightmare	1,000,000,000,000,000 HP	2,000,000,000 EXP	70 Keys

Kattlekruk's Boss Mechanics

The Kattlekruk boss has doesn't actually deal any damage to you. Instead, the whole fight is a big DPS race.

Either side of the boss fight Biggole Mole's will spawn. They will then slowly travel towards the boss- if they reach it they will heal the boss.

Your aim for the fight is to deal enough damage to stop the Biggole Mole's from healing the boss and also defeat the boss at the same time.

It's a fairly easy fight!

Notes:

• Nightmare Kattlekruk drops the elusive Eternal Flames of The Divine. The act of this item dropping is needed for the quest Tired Mole, so make sure you have it accepted before taking on this fight.
• The Eternal Flames of The Divine is also used for the Equipment Set effect Kattlekruk Set.

Defeating Kattlekruk will allow you to collect the Spirit Diamond that allows you to unlock World 6: Spririt Valley

Kattlekruk Equipment

You can craft Kattlekruk Equipment gear at the Anvil Tab V using drops from Kattlekruk and by unlocking his recipes at the World 5 Merit Shop.

Item	Materials	LevelReq	EXP	Unlock
Skulled Helmet of the Divine	Magma Core Headdress x1 Kruk Tooth x50 Kruk Cavity Tooth x2	Lvl 75	1,000,000 EXP	Merit Shop (World 5)
Serrated Chest of the Divine	Magma Core Wavemaille x1 Kruk Tooth x30	Lvl 74	1,000,000 EXP	Merit Shop (World 5)
Spiked Leggings of the Divine	Magma Core Battleskirt x1 Kruk Tooth x20	Lvl 73	1,000,000 EXP	Merit Shop (World 5)
Devious Slippers of the Divine	Magma Core Lavarunners x1 Kruk Tooth x10	Lvl 72	1,000,000 EXP	Merit Shop (World 5)
Crackled Skull Destroyer	Molten Core Knucklers x1 Kruk Tooth x100 Kruk Cavity Tooth x4 Mongo Worm Slices x20,000,000	Lvl 80	1,000,000 EXP	Merit Shop (World 5)
Skull Lance	Magma Maul x1 Kruk Tooth x30 Kruk Cavity Tooth x4 Wormie Slices x3,000,000	Lvl 78	1,000,000 EXP	Merit Shop (World 5)
Spine Tingler Sniper	Sediment Core Grunkler x1 Kruk Tooth x30 Kruk Cavity Tooth x4 Hard Hat x4,000,000	Lvl 78	1,000,000 EXP	Merit Shop (World 5)
Staff of the Undead Plague	Cattle Core Soothsayer Staff x1 Kruk Tooth x30 Kruk Cavity Tooth x4 Molten Lamp x5,000,000	Lvl 78	1,000,000 EXP	Merit Shop (World 5)
The Divine Scarf	Chizoars Caustic Scarf x1 Strung Tooth of the Divine x1 Kruk Cavity Tooth x10 Lucky Lad x2	Lvl 80	1,000,000 EXP	Merit Shop
Eternal Flames of The Divine	Drops from Nightmare Kattlekruk	-	-	-

Equipping all the Kattlekruk Equipment also unlocks the Kattlekruk Set: +5 LV for all Talents