Eye of Cthulhu

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The Eye of Cthulhu is a pre-Hardmode boss. It is one of the first bosses a player encounters, as it spawns automatically when a relatively early level of game advancement is achieved. It can also be summoned manually with the Suspicious Looking Eye (see Spawn below). It can be considered the second easiest boss in the game, the first being King Slime.

While the Eye of Cthulhu is alive, music Boss 1 will play.

Spawn
The Eye of Cthulhu can be summoned manually using a Suspicious Looking Eye at night (beginning at 7:30PM in-game time).

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


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

If spawning this way, its arrival is announced by the status message ""

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
The Eye of Cthulhu has two phases, and is able to fly through blocks in both of them. During the first, it attempts to float directly above the player, while spawning 3-4, which drop Hearts and Stars on death. After spawning a round of those, it charges at the player 3 times in succession, before repeating the cycle.

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

In, the boss spawns more Servants than normal, as well as 4-5 Servants upon transforming. At 1/4 health, it will gain an additional powerful rapid chain dash attack. These dashes become faster as the Eye of Cthulhu's life decreases, and it can dash nearly continuously when close to death.

Likewise, if it is not killed before dawn, it will fly off the screen and despawn.

Tips

 * The Eye of Cthulhu drops either Demonite or Crimtane Ore. While the corresponding set of armor and a number of tools additionally require Shadow Scales or Tissue Samples respectively – which the Eye does not drop –, sword, bow, axe, yoyo, and fishing pole can be crafted with only the bars.
 * 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. It drops (normal) /  (Expert) up front, plus ores which can be sold as bars for twice (Demonite) or thrice (Crimtane) that amount.
 * The Eye of Cthulhu will only spawn randomly if a player has 10 or more defense. Taking defense-boosting equipment off before dusk can prevent it from spawning randomly.
 * The boss looks at the player it will follow, which can be helpful information in multiplayer.
 * The Eye is most vulnerable during its transformation, because it does neither move nor attack. However, there is only a brief window of opportunity for this.
 * Because there are no location-based requirements for summoning, defeating multiple Eye of Cthulhu in an area can be an effective setup for harder boss fights as the dropped Hearts can be picked up mid-fight as needed.
 * Killing it on a Corruption world is slightly more profitable than doing so in another with Crimson, as it will drop additional Unholy Arrows.
 * In singleplayer, the player can repeatedly pause the game using Autopause in order to properly aim at the Eye of Cthulhu during its dash attacks.

Trivia

 * 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.
 * Cthulhu itself does not appear in any version of Terraria. However, Moon Lord, the final boss of the, resembles common depictions of Cthulhu.
 * The existence of the True Eye of Cthulhu, an entity spawned by the Moon Lord (who is similar to Cthulhu), implies that the Eye of Cthulhu is not Cthulhu's actual, true eye.
 * The Merchant NPC will mention sensing something evil watching them once the requirements to battle the Eye of Cthulhu are met.
 * Although irrelevant to game progression, the Eye of Cthulhu will keep spawning naturally until defeated at least once.
 * It is possible to defeat the Eye of Cthulhu without it ever transforming into its second form, e.g. with late-game weapons or . However, its remains will be unaffected once killed.
 * The Eye of Cthulhu Trophy seems to consist of a tooth, which is only physically seen in its second form.
 * The Eye of Cthulhu seems to have central, an eye condition where there are two colors in the same iris.
 * It is one of the first bosses of Terraria&#39;s first release.

History
Auge von Cthulhu Œil de Cthulhu Cthulhu szeme Eye of Cthulhu Eye of Cthulhu Глаз Ктулху 克苏鲁之眼