Core Keeper Boss Progression Checklist
All Core Keeper bosses in recommended progression order with gear requirements, locations, and key drops. Check off each boss as you defeat it.
Gear Tier Progression
Glurch the Abominous Mass
Next upLocation: Dirt Biome
Gear needed: Copper/Wood
HP: 2,459
Summon: Slime boss slimeling
Notable drops: Glurch's Eye (key), slime gear
Malugaz the Corrupted
Location: Forgotten Ruins
Gear needed: Iron+
HP: 14,513
Summon: Burning skull of corruption
Notable drops: Haunted key, corrupted heart
Hive Mother
Location: Sunken Sea (larva hive)
Gear needed: Iron+
HP: 24,671
Summon: Larva hive boss egg
Notable drops: Hive Mother's Eye (key), larva gear
Azeos the Endless Skies
Location: Azeos' Wilderness
Gear needed: Scarlet
HP: 31,813
Summon: Imprisoned item recovered
Notable drops: Azeos' Eye (key), feather gear
Ivy the Poisonous Mass
Location: Wilderness
Gear needed: Scarlet
HP: 39,155
Notable drops: Ivy's Eye (key), spore gear
Morpha the Aquatic Mass
Location: Sunken Sea
Gear needed: Octarine
HP: 84,551
Notable drops: Morpha's Eye (key), octarine gear
Omoroth the Sea Titan
Location: Sunken Sea
Gear needed: Octarine+
HP: 90,772
Notable drops: Ocean gear, titan core
Igneous the Molten Mass
Location: Magma Biome
Gear needed: Galaxite
HP: 160,799
Notable drops: Solarite ore, molten gear
Ra-Akar the Sand Titan
Location: Desert Biome
Gear needed: Galaxite
HP: 160,799
Notable drops: Desert gear, titan core
Crydra the Frost Titan
Location: Glacier
Gear needed: Solarite
HP: 136,992
Notable drops: Frost gear, solarite crystal
Druidra the Nature Titan
data approximateLocation: Ancient Ruins
Gear needed: Solarite+
Notable drops: Nature gear, ancient essence
Nimruza the Void Elder
data approximateLocation: The Void
Gear needed: Voidstone
Notable drops: Void gear, elder essence
Pyrdra the Magma Titan
data approximateLocation: Deep Magma
Gear needed: Voidstone
Notable drops: Magma titan core
S.A.H.A.B.A.R.
data approximateLocation: Tech Dungeon
Gear needed: Voidstone
Notable drops: Tech gear, circuit core
Core Commander
data approximateLocation: Core Chamber
Gear needed: Voidstone
Notable drops: Commander core, endgame gear
Oblidra
data approximateLocation: Void Biome
Gear needed: Voidstone
Notable drops: Oblid essence, void crystal
Urschleim
data approximateLocation: Primordial Biome
Gear needed: Voidstone
Notable drops: Primordial slime, ancient core
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