The Space Butterfly is a deity created by Jesse Cox, during a boredom-fueled stupor while filming the Terraria series with Totalbiscuit.
First mentioned (on podcast): Episode 21
Cox N' Crendor Universe Edit
The Space Butterfly is the deity and creator of the Universe, reality itself is no more than the dream of The Almighty Space Butterfly. it roams through the stars and eats moon nectar, creating and dictating all that occurs. Its archnemesis (one could say: its evil counterpart, "satan") is the Space Moth and they have fought many times. Jesse Cox is the High-Prophet of the Space Butterfly.
"ALL HAIL THE GREAT AND ALMIGHTY SPACE BUTTERFLY, MAY IT'S WINGS FLAP ETERNALLY AS IT DREAMS THE WORLD." - Jesse