The Elder Sign is a special sign used for spawning Cthulhu.


the elder sign looks like a yellow sign with a pentagram in the middle. Only one spawns naturally per world on the r'lyeh tower, which spawns in the middle of the Atlantis Biome.


The elder sign can only be broken with a diamond sword or higher.

Creative mode

It is possible in creative mode or through cheats to obtain this sign. In creative mode, one simply has to use the "pick block" function. Once obtained, one can spawn a Cthulhu in the overworld.

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.