Cthulhu

is a fictional cosmic entity originally devised by author , as an evil god from beyond the human universe. The creature remains a popular element of today.
== Appearances ==
Entity	Entity	Details
 	
* A common Pre-Hardmode enemy that spawns at night.	
 	
*A pre-Hardmode enemy that spawns during a Blood Moon, and is implied to be formed by many Demon Eyes.	
 	
* The Hardmode equivalent of the Demon Eye. It resembles the Eye of Cthulhu, and even changes to resemble its second stage when damaged sufficiently.	
 	
* A pre-Hardmode enemy that can be fished during a Blood Moon. It is implied to be a hybrid of a wandering eye and a Flying Fish.	
 	
*Hardmode enemies, found outside the Dungeon post-Golem as 2 Lunatic Devotees and 2 Cultist Archers surrounding a Mysterious Tablet. Killing both Cultist Archers and both Lunatic Devotees will cause the Lunatic Cultist to spawn, causing a chain of events that culminate in fighting the Moon Lord.
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* One of the first bosses that will be faced by the player.
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* The pre-Hardmode boss of The Crimson.
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* The pre-Hardmode boss that guards the entrance to the Dungeon.
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* The first three bosses encountered in Hardmode, each essentially a harder version of a pre-Hardmode boss (The Destroyer and the Eater of Worlds, Skeletron Prime and Skeletron, and The Twins and the Eye of Cthulhu).
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*Considered the final boss of the versions it appears in. It shares some resemblances to common depictions of Cthulhu, as well as to the Moon Lord.
*As Ocram was not created by Re-Logic, any possible ingame connections to Cthulhu are superficial at best.	
 	
*The penultimate boss of the game. Fought outside the dungeon in Hardmode after Golem and Skeletron are defeated. Defeating them triggers the Lunar Events, which culminate in fighting the Moon Lord.
* To this end, they forced the Mechanic to forge the Mechanical Bosses as new mechanical organs for Cthulhu - however, as the mechanical brain was never completed before the events of the game, this plan never came to fruition (and may have been pointless anyway, if the Moon Lord - Cthulhu connection is true).	
 	
*The final event in the game. Spawns 4 Celestial Pillars around the world, each one themed around a certain celestial phenomenon (Solar, Vortex, Stardust, and Nebula). Each one spawns enemies themed around it, and a certain number of these enemies must be killed for their respective Pillar to be attacked directly. Once all 4 Pillars fall, a one minute preparation period occurs, after which the Moon Lord spawns.
*All 4 Bestiary entries for the Celestial Pillars reference them being a seal for a 'terrifying tyrant'.
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* The final boss in the game. It resembles common depictions of Cthulhu, and summons True Eyes of Cthulhu when its body parts are sufficiently damaged.
*  – The official game lore implies that the Moon Lord may actually be Cthulhu following his defeat. However, the Moon Lord's sprite has an intact brain, upper skeleton (as seen when it dies), and eyes, contradicting the damage the Dryads inflicted on Cthulhu. However, it may be possible that this is Cthulhu in the process of regenerating the damage they took.	
 	
* A minion summoned by the Eye of Cthulhu.	
 	
*Floating eyeball minions that spawn alongside the Brain of Cthulhu, and orbit around it. Killing all of them is required for the Brain to enter its second phase.	
 	
* An invincible enemy summoned by the Moon Lord.	
 	
* A minion summoned by the Lunatic Cultist. It resembles Cthulhu's head and is also reminiscent of the head of the Moon Lord.	
 	
* Found outside the Dungeon after Golem and Skeletron have been defeated. It appears similar to common depictions of Cthulhu.
* It is destroyed by the Lunatic Cultist at the start of its fight, and thus is tied to the Lunar Events that result in the Moon Lord bossfight.	
 	
* An Expert Mode-exclusive item dropped by the Eye of Cthulhu. It resembles the second phase of the aforementioned boss.	
 	
* An Expert Mode-exclusive item dropped by the Brain of Cthulhu. It resembles the second phase of the aforementioned boss.	
 	
* An Expert Mode-exclusive item dropped by the Moon Lord. When used, it summons the Suspicious Looking Eye light pet, which resembles the True Eye of Cthulhu minions summoned by the boss it drops from.
* The item name and pet name reference the Suspicious Looking Eye, a boss summoning item used to manually spawn the Eye of Cthulhu.	
 	
* A Master Mode-exclusive item dropped by the Moon Lord. When used, it summons the Moonling pet, which resembles both the Moon Lord and common depictions of Cthulhu.
* The Moonling's buff tooltip, "A friend from beyond", references the H.P. Lovecraft short story "From Beyond", further entrenching its Lovecraftian connections.	
 	
* A quest item for the Angler. It resembles a Demon Eye.	
 	
* A post-Plantera yoyo dropped by Mothron during a Solar Eclipse, referencing the namesake boss.	
 	
* A boss summoning item crafted using 6 lenses at an altar. Using it during the night summons the Eye of Cthulhu.
* Its sprite is a perfect match of the appearance of a Servant of Cthulhu, only lacking the animation the latter possesses.	
 	
*A boss summoning item crafted using 15 vertebrae ( and 30 Vicious Powder). When used in The Crimson, it summons the Brain of Cthulhu.
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* A boss summoning item crafted using 12 of each type of Lunar Fragment, which are obtained by defeating the Celestial Pillars, at an Ancient Manipulator. Using it triggers a twelve second preparation period, after which the Moon Lord will be summoned.
*It resembles the Mysterious Tablet, as well as common depictions of Cthulhu.	
== Notes ==
** The Lunatic Cultist plans on restoring Cthulhu and has forced the Mechanic to forge mechanical organs of Cthulhu. However, since she has never completed the mechanical brain, the restored Cthulhu cannot function, and thus, unless the aforementioned implication that he became the Moon Lord is true, he never appeared again.
* The Terrarian on Cthulhu concept art has Necro Armor and Space Gun.
== Trivia ==
* In the concept art, he is missing one of his eyes, presumably because the missing eye became the Eye of Cthulhu boss.
** One of the title messages on the refers to this: ""