Created by a solid thought machine, originally invented by that universe's Clark, Lois and Jimmy but later acquired by the Little Man's Overcorp, Superdoom is in many ways the exact opposite of Superman. Jumping from universe to universe he finally made his way to Earth-23 where he was eventually defeated by that Earth's Superman with the aid of Lex Luthor and banished to the multiverse.
Superdoom would appear again when instigued by the little man give prime-earth´s Luthor the same dreams which driven him to build a copy of the machine than earth-23 Luthor made and let Superdoom enter main earth universe under the control of Vyndktvx. Powered by the energy of the 5th dimensional being, Superdoom attacked Superman, with growing strengh. However shorty after the defeat of his master, Superdoom triggered a self destruction system. Superman could put him in a safe distance where he blow up, without any further damage to anyone.
Superdoom was created by Action Comics writer Grant Morrison and was first drawn by Gene Ha.