Earth 45

On this world there were no superhuman beings until "Superman" was created by Clark Kent, Lois Lane and Jimmy olsen using incredible thought-powered technology. Co-opted by the business mavens of Overcorp, Superman was redesigned as a monstrous, troubled anti-hero and came to be known as Superdoomsday when his rampage through the worlds of the Multiverse resulted in the deaths of Superman of Earth 42 and Optiman of Earth 36 before his defeat at the hands of President Superman of Earth 23 and the Superman of Earth 0.