Board Thread:General Discussion/@comment-24041796-20141112031519/@comment-34596925-20180205162026

i saw a good theory somewhere that cthulhu came to terraria because he heard a call from another god *thats a whole other story* and started terrorizing the residents of terraria. eventually a hero was able to defeat cthulhu. and since he can never be truely killed. the hero dismembered him and his remains slowly formed the crimson. and any creature that touched it would become his servants and help spread the crimson so cthulhu could be reborn.