Cthulhu

was originally devised by author, as an evil god from beyond the human universe. The creature remains a popular element of today.

While Cthulhu itself never made an appearance, a number of enemies and items in Terraria include direct and indirect references to Cthulhu.

Bosses

 * - one of Cthulhu's eyes
 * - the brain of Cthulhu
 * - Moon Lord resembles common depictions of Cthulhu, and is subtly implied to be either Cthulhu himself or some entity closely related to him
 * - Moon Lord resembles common depictions of Cthulhu, and is subtly implied to be either Cthulhu himself or some entity closely related to him

Enemies

 * - a minion summoned by the Eye of Cthulhu
 * - an invincible enemy Summoned by Moon Lord which reside in his hands before the hand's health drops to 0
 * - a minion summoned by Lunantic Cultist which resembles both Cthulhu's and Moon Lord's heads.

Items

 * - a yoyo dropped by Mothron Post-Plantera based off of the namesake boss
 * - an Expert mode-exclusive item dropped by the Eye of Cthulhu
 * - a quest item from the Angler based off the Eye of Cthulhu

Miscellaneous

 * - named "Cthulhunado" for its size, a larger Sharknado summoned by Duke Fishron that does more damage

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 Cthulhu: "Cthulhu is mad...and is missing an eye!"

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