Cthulhu

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

In Terraria, while Cthulhu itself never made an appearance, a number of enemies and items include references to Cthulhu, or references the items that are already a Cthulhu reference:

Bosses

 * - Moon Lord resembles common depictions of Cthulhu.
 * - Moon Lord resembles common depictions of Cthulhu.
 * - Moon Lord resembles common depictions of Cthulhu.
 * - Moon Lord resembles common depictions of Cthulhu.

Enemies

 * - A minion summoned by the Eye of Cthulhu
 * - An invincible enemy Summoned by Moon Lord
 * - A minion summoned by Lunantic Cultist - Resembles Cthulhu's head.

Items

 * - A yoyo dropped by Mothron Post-Plantera
 * - The expert mode exclusive item of the Eye of Cthulhu
 * - A quest item for Angler.

Miscellaneous

 * - A massive Sharknado that summons more Sharkrons, thus named Cthulhunado for it's size. It is summoned by Duke Fishron.

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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