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The Eye of Cthulhu is a Boss monster that the player can fight. It can be summoned by creating a Suspicious Looking Eye at a Demon Altar. In order to summon the boss, it must be night; otherwise, nothing will happen. It is also possible for it to spawn soon after the message "You feel an evil presence watching you" appears. This happens when the player has at least ten hearts, hasn't defeated the Eye of Cthulhu before, and has at least 3 NPCs. This boss has been described as the easiest by the game's developers.
Speed kill
The Eye of Cthulhu can be killed very quickly, even without a Star Cannon:
Strategy
The Eye of Cthulhu acts like a larger Demon Eye, flying around and trying to ram the player, often going through walls and underground. Because of its large size, it is recommended that the player brings a bow or Shurikens to the fight, as the player can jump and dodge while constantly hitting the Eye.
A good area to fight the Eye is high in the air on a long platform, so when the Eye flies downwards, you can still attack it with range weapons.
When the Eye starts to spawn Servants of Cthulhu, if the player stands still the Eye will position itself directly overhead. It is possible use this to your advantage by hitting it rapidly with ranged attacks, preferably one that passes through multiple enemies like Shurikens or the Ball 'O Hurt. Not only will this damage the Eye of Cthulhu, but the Servants of Cthulhu that it spawns will be killed instantly.
After the Eye loses 1500 health, it will transform, replacing its pupil with a large mouth. In this form, the Eye of Cthulhu is faster, deals more damage, has lower defense, and no longer spawns Servants of Cthulhu. After it is defeated, the Eye of Cthulhu drops several items, including Demonite Ore.
Video guide
Notes
- If you use the Suspicious Looking Eye after the message "You feel an evil presence watching you", it will summon 2 eyes at the same time.
- If you are already fighting an Eye and use the Suspicious Looking Eye, you will instantly be killed, and the Eye will fly away.
- If you die while fighting an Eye, the Eye will fly away.
- The Eye of Cthulhu loses 3 defense when it changes forms.
- If it turns day while fighting the Eye it will fly away.
- In multiplayer players can die and the Eye stays, as long as there is always at least one player alive.
- If you log out after the message "You feel an evil presence watching you" it will not appear.
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