Eye of Cthulhu

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Eye of Cthulhu First Form
Eye of Cthulhu.png
Type Boss
AI Type Eye of Cthulhu AI
Damage 15 / 30
Max Life 2800/2800
Defense 12
KB Resist 100%
Internal NPC ID: 4
Eye of Cthulhu Second Form
Type Boss
AI Type Eye of Cthulhu AI
Damage 22 / 45
Max Life 1400/2800
Defense 0
KB Resist 100%
Coins 3 Gold Coin
Item (Quantity) Rate
Demonite Ore.png Demonite Ore
• 30-87 in Corrupt worlds
Unholy Arrow.png Unholy Arrow
• 20-49 in Corrupt worlds
Corrupt Seeds.png Corrupt Seeds
• 1-3 in Corrupt worlds
Crimtane Ore.png Crimtane Ore
• 30-87 in Crimson worlds
Crimson Seeds.png Crimson Seeds
• 1-3 in Crimson worlds
Lesser Healing Potion.png Lesser Healing Potion
• 5-15
Eye of Cthulhu Mask.png Eye of Cthulhu Mask
Eye of Cthulhu Trophy.png Eye of Cthulhu Trophy
Binoculars.png Binoculars
Treasure Bag (Eye of Cthulhu).png Treasure Bag (Eye of Cthulhu)
• in Expert Mode only Pc only.png
Internal NPC ID: 4

Eye of Cthulhu Trophy.png "You feel an evil presence watching you..." Eye of Cthulhu Trophy.png

Not to be confused with The Eye of Cthulhu, a hardmode yoyo, or True Eye of Cthulhu, an invincible Hardmode enemy.

The Eye of Cthulhu is typically the first boss a player encounters, as it spawns automatically when a relatively early level of game advancement is achieved. It can be considered the second easiest boss in the game (after the King Slime), though can still present a challenge to newer players.

Spawn[edit | edit source]

The Eye of Cthulhu can be summoned manually using a Suspicious Looking Eye at Night (7:30pm).

It also has a 1/3 chance of spawning automatically each night, if the following conditions apply:

  • At least one player in the world has at least 200 life and more than 10 defense.
  • At least three Town NPCs are acquired.
  • The Eye of Cthulhu has not yet been defeated in the current world.

When spawning automatically, its approach is signaled with the status message: "You feel an evil presence watching you..." Within 20-40 seconds of this message, the Eye of Cthulhu will appear and begin attacking the player. If the Eye of Cthulhu is not defeated by dawn (4:30am), or if all players die or run away while fighting it, it despawns.

Behavior[edit | edit source]

The Eye of Cthulhu acts in a manner similar to Wandering Eyes. Like most bosses, it travels through blocks.

The Eye of Cthulhu has two phases. During the first, he spawns Servants of Cthulhu while floating around the player, which drop Hearts and Stars on death. After spawning a round of those, he flies at the player 3 times.

When the Eye of Cthulhu falls below half health (1400), it transforms into its second form, which rams the player more aggressively 3 times, then hangs in the air for a period. It no longer spawns Servants, and has lowered defense.

In Expert Mode, the Eye spawns more Servants than normal, as well as 4-5 Servants upon transforming. The second form has an additional powerful, rapid dash attack, which also increases its defense significantly. These become more rapid as the Eye's life is lowered, and it can dash nearly continuously when close to death.

Achievement[edit | edit source]

Achievement Eye on You.png Eye on You
Defeating the Eye of Cthulhu for the first time. Pc only.png

Notes[edit | edit source]

  • If you log out after the message "You feel an evil presence watching you...," appears, the Eye will not appear.
  • The Eye of Cthulhu's ore drop is based on whether the world contains Corruption or Crimson: Demonite Ore for Corruption, and Crimtane Ore of Crimson. If the Corruption/Crimson have been completely eliminated from a world, the Eye may drop the "wrong" Ore type.
  • Using the Suspicious Looking Eye after seeing the message "You feel an evil presence watching you" will allow two Eyes of Cthulhu to be present at once. Two Eyes cannot be summoned manually though, and a second Suspicious Looking Eye a player attempts to use will not be consumed from their inventory.

Tips[edit | edit source]

For more elaborate strategies on defeating Eye of Cthulhu, including Weapon and Arena recommendations, see Guide:Eye of Cthulhu strategies.

  • The Slime Mount is very effective against it, allowing you to bounce on the Eye continuously until it's defeated.
  • The Eye of Cthulhu drops either Demonite Ore or Crimtane Ore. Game-advancing tools at that tier also require Shadow Scales or Tissue Samples respectively, which the Eye doesn't drop, so players will have to fight the Eater of Worlds or Brain of Cthulhu to progress.
  • Due to the ease of crafting its summoning item and relatively low difficulty, farming the Eye of Cthulhu is one of the more effective ways of making money prior to Hardmode.
  • The Eye of Cthulhu will only spawn if you have 10 or more defense. Taking defense-boosting equipment off before sundown can prevent it from spawning randomly.
  • The Eye looks at the player it will follow, which can be helpful information in multiplayer.
  • Using Shurikens can be an easy way to damage the Eye of Cthulhu as they will pierce through the servants and the Eye of Cthulhu and drop back again making it possible to hit the Eye of Cthulhu twice with each Shuriken.
  • A good idea is to use ranged weapons, like bows, or the Water Bolt.

Trivia[edit | edit source]

  • Cthulhu is an entity from the works of writer H.P. Lovecraft, first appearing in his short story The Call of Cthulhu. Cthulhu is described as a slumbering cousin to the old ones who will destroy all living things should he ever awaken.
  • Sometimes NPCs will mention sensing something evil watching them once you meet the requirements to battle the Eye of Cthulhu.
  • In the Console Version and Mobile Version, the battle music is Boss 4 instead of Boss 1 .
  • The endgame boss, the Moon Lord, spawns enemies called 'True Eye of Cthulhu'.
  • You do not technically need to beat this boss to progress through the rest of the game, as it has no unique drops. It will however continue spawning until beaten at least once.

See also[edit | edit source]

History[edit | edit source]

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