Core Keeper Wikidom UNOFFICIAL GUIDE

BOSS

Core Keeper Bosses and the Order to Fight Them

All Core Keeper bosses in the recommended order. Bosses without a number can be fought in any order, and "Optional" bosses are not required to progress the story. Depending on your world's layout, some bosses may be easier to reach earlier or later.

Summary

How many bosses are in Core Keeper, and in what order should you fight them?

  1. 20 bosses in total

    10 bosses have a recommended order along the story; the others (such as the titan dragons) can be fought in any order.

  2. Start with Glurch the Abominous Mass

    The recommended order is Glurch the Abominous Mass → Ghorm the Devourer → Malugaz the Corrupted → The Hive Mother and so on (see the list below).

  3. The final boss is Core Commander

    The boss you fight at the end of the story (Core Commander).

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All 20 bosses in the recommended order

  1. 1 Glurch the Abominous Mass 奇怪生命体グラーチ A giant slime lurking near the spawn point. Usually the first boss you fight. The Undergrounds
  2. 2 Ghorm the Devourer 大喰らいのゴーム A huge larva that circles the map. The usual plan is to find its path and wait for it. The Clay Caves
  3. 3 Malugaz the Corrupted 頽廃の王マルガズ The Caveling king waiting in the Forgotten Ruins. The Forgotten Ruins
  4. 4 The Hive Mother Optional ハイヴマザー A large boss deep in the larva hive. Not required to progress the story. The Clay Caves
  5. 5 Azeos the Sky Titan 天空の巨鳥アゼオス The sky titan, a giant bird that appears in Azeos' Wilderness. Azeos' Wilderness
  6. 6 Ivy the Poisonous Mass 猛毒生命体アイヴィー A poisonous slime boss in Azeos' Wilderness. Azeos' Wilderness
  7. 7 Morpha the Aquatic Mass 水棲生命体モルファ A water slime boss living in the Sunken Sea. The Sunken Sea
  8. 8 Omoroth the Sea Titan 海の巨獣オモロス The sea titan hiding deep in the Sunken Sea. The Sunken Sea
  9. 9 Ra-Akar the Sand Titan 砂の巨獣ラ・アカール The sand titan sleeping in the Desert of Beginnings. The Desert of Beginnings
  10. 10 Igneous the Molten Mass 溶岩の塊イグニアス A scorching slime boss in the lava area. The Desert of Beginnings
  11. – Druidra the Wild Titan 森の巨竜ドルイドラ A titan dragon wielding the power of the forest. The Shimmering Frontier
  12. – Crydra the Ice Titan 氷の巨竜クライドラ A titan dragon wielding the power of ice. The Shimmering Frontier
  13. – Pyrdra the Fire Titan 炎の巨竜ファイドラ A titan dragon wielding the power of fire. The Shimmering Frontier
  14. – Oblidra the Void Lord 空虚の支配者オブリドラ A titan dragon wielding the power of the void.
  15. – Atlantean Worm アトラスワーム A giant worm boss that the Atlantean Worm Scanner can track down.
  16. – Nimruza, Queen of the Burrowed Sands 砂潜りの女王ニムルザ The queen of the burrowed sands, fought in her arena in the Desert of Beginnings. Summon her again with the Corrupted Sap.
  17. – Urschleim ウルシュライム An ancient organism drawn out with the Primeval Slime Cell, a mutated crystal cell.
  18. – S.A.H.A.B.A.R. S.A.H.A.B.A.R. A robot boss called with the Profane Override. It drops the S.A.H.A.B.A.R.'s Mortar Housing, a part for the legendary mortar.
  19. – King Slime キングスライム A slime king from another world, summoned with the Crown Summoning Idol.
  20. – Core Commander コア・コマンダー The boss standing in your way at the end of the story.
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How to summon bosses (summoning items) and find them (scanners)

Use a summoning item to call the boss for a fight, and a scanner to find which direction the boss is in. Each item's page explains how to get it and where it can be used.

BossSummoning itemScannerBiome
Glurch the Abominous Mass Giant Slime Summoning IdolGiant Slime Summoning Idol — The Undergrounds
Ghorm the Devourer Ghorm Summoning IdolGhorm Summoning Idol Ghorm the Devourer ScannerGhorm the Devourer Scanner The Clay Caves
Malugaz the Corrupted Malugaz Summoning IdolMalugaz Summoning Idol Malugaz the Corrupted ScannerMalugaz the Corrupted Scanner The Forgotten Ruins
The Hive Mother Hive Mother Summoning IdolHive Mother Summoning Idol Hive Mother ScannerHive Mother Scanner The Clay Caves
Azeos the Sky Titan — Azeos the Sky Titan ScannerAzeos the Sky Titan Scanner Azeos' Wilderness
Ivy the Poisonous Mass — Ivy the Poisonous Mass ScannerIvy the Poisonous Mass Scanner Azeos' Wilderness
Morpha the Aquatic Mass — Morpha the Aquatic Mass ScannerMorpha the Aquatic Mass Scanner The Sunken Sea
Omoroth the Sea Titan — Omoroth the Sea Titan ScannerOmoroth the Sea Titan Scanner The Sunken Sea
Ra-Akar the Sand Titan — Ra-Akar the Sand Titan ScannerRa-Akar the Sand Titan Scanner The Desert of Beginnings
Igneous the Molten Mass — Igneous the Molten Mass ScannerIgneous the Molten Mass Scanner The Desert of Beginnings
Druidra the Wild Titan — Druidra the Wild Titan ScannerDruidra the Wild Titan Scanner The Shimmering Frontier
Crydra the Ice Titan — Crydra the Ice Titan ScannerCrydra the Ice Titan Scanner The Shimmering Frontier
Pyrdra the Fire Titan — Pyrdra the Fire Titan ScannerPyrdra the Fire Titan Scanner The Shimmering Frontier
Oblidra the Void Lord — Oblidra the Void Lord ScannerOblidra the Void Lord Scanner —
Atlantean Worm — Atlantean Worm ScannerAtlantean Worm Scanner —
Nimruza, Queen of the Burrowed Sands Corrupted SapCorrupted Sap Nimruza, Queen of the Burrowed Sands ScannerNimruza, Queen of the Burrowed Sands Scanner —
Urschleim Primeval Slime CellPrimeval Slime Cell Urschleim ScannerUrschleim Scanner —
S.A.H.A.B.A.R. Profane OverrideProfane Override S.A.H.A.B.A.R. ScannerS.A.H.A.B.A.R. Scanner —
King Slime Crown Summoning IdolCrown Summoning Idol — —
Core Commander Core Commander Summoning IdolCore Commander Summoning Idol Core Commander ScannerCore Commander Scanner —

How to craft each summoning item, where it can be used, and how to get each scanner are on the item pages. To see what to do after each boss, check What to do next (progression chart).