Core Keeper

Core Keeper Boss List: All Bosses, Locations, Attacks, & Loot

Posted on Aug 1, 2023 by justin

The bosses in Core Keeper can catch players off guard and make you rethink the next time you enter a cave. But conquering your fears and defeating the bosses of Core Keeper is important to progress through the game and pick up some valuable loot. With that, here's every boss in Core Keeper, where you can find them, their attacks, and what loot you can earn by defeating them.

All Bosses in Core Keeper

At the time of writing, Core Keeper has 11 bosses to find and defeat. Also, these major enemies don’t naturally respawn unless players use special summoning methods.

Glurch the Abominous Mass

Many Core Keeper beginners would typically find Glurch the Abominous Mass as their first boss encounters. It appears as a giant, orange-colored version of the regular mass with a mouth or orifice. It’s also immune to stunning, slippery movement, and slows from slimes.

Location

Pay attention to the screen shaking when exploring the Dirt biome. Head in the direction of the shakes to find the boss.

Attacks

Like regular slimes, Glurch the Abominous Mass only has one attack pattern: it bounces and tries to squish its target. However, it deals about 50 damage per hit. Also, it becomes enraged when its health reaches 30%, increasing its attack damage and ferocity.

Loot Drops

Glurch Chest
Glurch Eye
Slime Oil
Melting Crystal Ring
Blob Rosary Necklace
Wooden Shield
Swift Feather
Slime
Ancient Gemstone
Mechanical Part
Copper Ore
Tin Ore
Melting Crystal Ring
Blob Rosary Necklace
Wooden Shield
Swift Feather
Glurch Figurine

Ghorm the Devourer

Ghorm the Devourer is a giant worm-like creature that may appear docile. However, deal sufficient damage to it, and it’ll start ramming those who attack it.

Location

Players can search for Ghorm the Devourer by following its trail. This Core Keeper boss doesn’t stay in one place and will roam around the entire map.

Attacks

Normally, Ghorm will try to harm anyone who attempts to prevent it from moving forward. But it enrages at 80% health and will start charging at the player’s position.

Loot Drops

Ghorm Chest
Ghorm's Horn
Larva Meat
Ghorm's Stomach Bag
Mysterious Idol
Larva Ring
Larva Chest
Tin Axe
Flintlock Musket
Ancient Gemstone
Mechanical Part
Fiber
Iron Ore
Gold Ore
Shiny Larva Meat
Larva Ring
Larva Chest
Tin Axe
Flintlock Musket
Ghorm Figurine
Amber Larva

The Hive Mother

Although The Hive Mother is a stationary boss, it summons larvae that can fill its surroundings fairly quickly. Players that don’t pay attention to the battleground might soon become overwhelmed by the amount of larvae, resulting in a quick death.

Location

The Hive Mother’s nest is in the Larva Hive biome. Players should notice that this Core Keeper boss is near if they enter a large open space in the biome.

Attacks

Aside from summoning Big Red and Red Larvae, The Hive Mother can also spew acid in the player’s direction. It also enrages when players can whittle this boss’ health to about 60%.

Loot Drops

Hive Mother Chest
Heart of the Hive Mother
Larva Meat
Clot Ring
Grub Egg Necklace
Larva Helm
Hand Mortar
Broken Handle
Battle Axe
Ancient Gemstone
Fiber
Iron Ore
Gold Ore
Grub Knot
Clot Ring
Grub Egg Necklace
Larva Helm
Hand Mortar
Broken Handle
Battle Axe
Hive Mother Figurine

Azeos the Sky Titan

Progressing through the game would eventually lead players to unlock and power up The Core. Then, players would eventually fight Azeos the Sky Titan, the first of the three titan bosses in Core Keeper.

Location

Azeos resides in the Azeos’ Wilderness biome. In particular, this Core Keeper boss has a distinct arena that players can’t miss easily.

Attacks

Azeos has more attacks than many of the other bosses in the game. Prepare to deal with the following hazards when fighting this boss:

Thunder beams appear and close in on the player’s position from the left and right
Thunder beams appear and close in on the player’s position from the top and bottom
A thunder beam cluster appears, and each of them will move in a unique direction
Thunder beams form a ring before spreading out
Multiple blue crystals appear that can only be destroyed with a pickaxe or an explosive

Loot Drops

Titan's Chest
Pile of chum
Radical Rabbit Ears
Eostre Necklace
Ostara Ring
Awakened Azeos Figurine
Broken Handle
Azeos Beak Necklace
Sky Ring
Ancient Pickaxe
Azeos' Dash Feather
Ancient Gemstone
Scarlet Ore
Gold Ore
Petrified Egg
Broken Handle
Azeos Beak Necklace
Sky Ring
Ancient Pickaxe
Azeos' Dash Feather
Azeos Figurine

Ivy the Poisonous Mass

Ivy the Poisonous Mass has a similar appearance to Glurch the Abominous Mass. The difference is that Ivy has a more purple-like color as opposed to the orange hue of Glurch. However, Ivy has more health and damage output than its early-game counterpart.

Location

Players can find Ivy in the same biome as Azeos. But the process of finding this Core Keeper boss is the same as searching for Glurch.

Attacks

Like Glurch, Ivy will move around the battle arena, trying to slam and hit the player. Its attacks become more ferocious when its health reaches below 30%.

Loot Drops

Ivy's Chest
Ivy's Ring
Poisonous Sickle
Remedaisy Necklace
Ivy's Pants
Ivy's Thorn Harness
Toxic Defender
Poison Slime
Scarlet Ore
Gold Ore
Ancient Gemstone
Mechanical Part
Ivy's Ring
Poisonous Sickle
Remedaisy Necklace
Ivy's Pants
Ivy's Thorn Harness
Toxic Defender
Ivy Figurine

Malugaz the Corrupted

Malugaz the Corrupted appears as an armored hooded being with spiked shoulders. Note that this Core Keeper boss fight is optional and won’t count as a progression to the game’s story if you decide not to fight it. However, beating this major enemy will drop various unique and helpful items.

Location

Unlike other bosses, players must find the Throne Room in the Forgotten Ruins to summon Malugaz. Here, place the Skull of the Corrupted Shaman at the center of the room. If done correctly, Malugaz appears, and the fight begins.

Attacks

Similar to the bosses in Terraria, Malugaz has two phases. In his first phase, this enemy will alternate between two attacks:

Throws two or three fireballs in the player’s direction, and
Summon a fiery wall around the arena

Depleting Malugaz’s health won’t defeat this boss. Instead, this enemy will enter its second phase. This time, he’ll still have two attacks, but now they’re fiercer than before:

Teleports around the arena and will appear next to the player to fight close combat, and
Create fiery tiles after teleporting

Loot Drops

Ancient Chest
Skull Ring
Skull Necklace
Blue Leather Tome
Ritual Dagger
Ancient Gemstone
Mechanical Part
Gold Bar
Fireball Staff
Hand Mortar
Battle Axe
Skull Ring
Skull Necklace
Blue Leather Tome
Ritual Dagger
Ritual Goblet
Oracle Card "Entity"
Caveling Skull
Small Caveling Skull
Blood Skull
Malugaz Figurine

Omoroth the Sea Titan

As its name implies, Omoroth the Sea Titan is a large boss with an octopus-like appearance. It also has multiple tentacles that players can defeat to make the fight easier than expected.

Location

Omoroth is in the Sunken Sea biome. But players must use the Expert Lure in one of the biome’s whirlpools to summon this boss.

Attacks

Generally, Omoroth will spit large whirlwinds that fly away from its main body. Then, it’ll submerge and reappear in another whirlpool in the arena. Tentacles can also appear that can hit players when they are close.

Loot Drops

Floating Titan's Chest
Omoroth's Necklace
Omoroth's Ring
Omoroth's Beak
Omoroth's Helm
Omoroth's Chestplate
Omoroth's Leg Armor
Ancient Gemstone
Octarine Ore
Gold Ore
Giant Squid Eye
Omoroth's Necklace
Omoroth's Ring
Omoroth's Beak
Omoroth's Helm
Omoroth's Chestplate
Omoroth's Leg Armor
Anchor Axe
Omoroth Figurine

Morpha the Aquatic Mass

Another slime-type boss, Morpha the Aquatic Mass, shares a similar look to Glurch and Ivy. But, this time, Morpha has a blue appearance.

Location

Morpha is in the same biome as Omoroth. Players must buy and use the scanner from the spirit merchant to find this boss.

Attacks

Morpha has the same attack pattern as Glurch and Ivy. But this major enemy has a larger health pool and deals more damage than the two other slime bosses.

Loot Drops

Morpha's Chest
Morpha's Ring
Coral Ring
Slime Helm
Slime Armor
Slippery Slime Sword
Morpha's Bubble Bag
Slippery Slime
Octarine Ore
Gold Ore
Ancient Gemstone
Mechanical Part
Morpha's Ring
Coral Ring
Slime Helm
Slime Armor
Slippery Slime Sword
Morpha's Bubble Bag
Morpha Figurine

King Slime

King Slime is a boss from the crossover update with Terraria. It also shares the same appearance in Re-Logic’s game but without the ninja inside.

Location

Place a Crown Summoning Idol on Glurch, Ivy, or Morpha’s rune. Players can obtain this item by killing slime-type enemies.

Attacks

King Slime shares a similar attack pattern to the other slime bosses in Core Keeper. However, it’ll also summon Royal Slimes that attack nearby players.

Loot Drops

King Slime's Chest
King Slime Crown
Royal Gel
King Slime Figurine
Terraria - Journey's Beginning
Healing Potion

Ra-Akar the Sand Titan

Ra-Akar the Sand Titan appears as a giant scarab and is also one of the toughest bosses in the game. Its behavior and damage output might only fall short of Igneous the Molten Mass.

Location

Summoning Ra-Akar requires players to place a Thumper in the middle of the boss’ den in the Desert of Beginnings biome.

Attacks

Ra-Akar has four main attacks:

Burrows and rages across the battlefield
Generates sand whirlpools
Generates glowing orbs that follow the player around the arena
Summons scarabs to fight for it

Loot Drops

Titan's Chest
Ra-Akar's Necklace
Scarab Visor
Scarab Harness
Scarab Legs
Ancient Gemstone
Galaxite Ore
Crystal Spearhead
Desert Diamond
Ring of Sand
Ra-Akar's Necklace
Scarab Visor
Scarab Harness
Scarab Legs
Ra-Akar Figurine

Igneous the Molten Mass

Although Igneous the Molten Mass doesn’t boast several attacks, getting hit by its gelatinous-like body can spell doom to unprepared players. This boss also shares the same maximum health as Ra-Akar.

Location

Find Igneous like you’re finding any of the other slime bosses in the game. In particular, watch out for screen shakes and use those instances to triangulate the boss’ location.