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Brain of Cthulhu

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Brain of Cthulhu First Form
Brain of Cthulhu.png
Statistics
Type Boss
Environment Crimson
AI Type Brain of Cthulhu AI
Damage 30


Brain of Cthulhu Second Form
Brain of Cthulhu-2nd.png
Statistics
Type Boss
Environment Crimson
AI Type Brain of Cthulhu AI
Damage 30
Max Life 1000
Defense 14
Item (Quantity) Rate
Brain of Cthulhu Mask.png Brain of Cthulhu Mask 14.29%Pc only.png
Brain of Cthulhu Trophy.png Brain of Cthulhu Trophy 10%
Crimtane Ore.png Crimtane Ore (30-80) 100%
Lesser Healing Potion.png Lesser Healing Potion (5-15) 100%
Tissue Sample.png Tissue Sample (30-50) 100%
For strategies on defeating the Brain of Cthulhu, see Guide:Brain of Cthulhu strategies.

"A horrible chill goes down your spine..." "Screams echo around you..."

The Brain of Cthulhu is a Boss associated with the Crimson biome. It can be summoned by shattering three Crimson Hearts or through the use of a Bloody Spine.

20 to 30 Creepers spawn along with the brain, each of which has its own health bar and will drop items on death. These orbit the Brain of Cthulhu at high speed, and as long as even one survives, the Brain cannot be damaged in any way. The Brain has no means of creating new Creepers or replacing lost ones, however, and they drop Hearts at a higher rate than regular enemies. Once all Creepers are defeated, the Brain becomes susceptible to damage and attacks the player much more directly.

The Brain of Cthulhu is the Crimson counterpart to the Corruption's Eater of Worlds. Much like its cousin, fighting it is essential for progression, as the Brain and its attendant Creepers are the only source of the Tissue Samples and quantities of Crimtane Ore needed to craft advanced tools and armor.

Attacks[edit]

First phase[edit]

Initially, the Brain of Cthulhu is invincible, but is surrounded by numerous relatively weak Creepers that attempt to ram the player. The Brain teleports around the player, drawing nearer before teleporting away again in a random direction. The Creepers do not teleport along with it, but are instead pulled between the player and the Brain in large, sweeping orbits. Once all Creepers are defeated, the brain enters its second phase.

Second phase[edit]

In the second phase, the Brain becomes damageable, continuing to teleport around but pursuing the player much more aggressively. Its speed increases and it will actually attempt to ram the player before moving to a new random location.

Tips[edit]

  • As Creepers drop Tissue Samples and Crimtane Ore fairly frequently, it's technically not necessary to defeat the Brain of Cthulhu to gain access to Crimson-tier equipment, only to kill a couple of Creepers and secure their drops.
  • Creepers have low individual health and are especially susceptible to the On Fire! and Frostburn debuffs, so weapons that inflict those can make quick work of them.
  • The Brain of Cthulhu is the only boss susceptible to knockback. Weapons with high knockback can keep both Creepers and the Brain from closing distance between teleports.
  • Unlike the Eater of Worlds, the Brain of Cthulhu doesn't run away and despawn if you leave the Crimson.

Trivia[edit]

  • The Brain of Cthulhu, along with the Eye of Cthulhu, is based on the character Cthulhu from the works of the author H.P. Lovecraft.
  • Unlike the Eater of Worlds, the Eye of Cthulhu, and Skeletron, the Brain of Cthulhu does not have a respective Hardmode boss on PC, but Ocram may be it's counterpart for the console/mobile. (The others having The Destroyer, The Twins and Skeletron Prime respectively.)
  • The Brain of Cthulhu has the least HP out of all the bosses, with even less than the Eye of Cthulhu in its second form. However, if counting the health of its creepers, it has more health than King Slime.

History[edit]

  • 1.2.3:
    • Killing the Brain of Cthulhu will now allow the Dryad to move into your town.
    • Now has a chance to drop the Brain Mask.
    • Fixed bug where Brain of Cthulhu wouldn't make dryad spawn or stop talking about the chasms.
  • 1.2: Introduced.
Characters: Blue Slime.png Pre-Hardmode Enemies • Pixie.png Hardmode Enemies • Goblin Warrior.png Event Enemies • Skeletron Head.png Bosses
Bunny.png Critters • Guide.png Friendly NPCs • Baby Dinosaur.png Familiars