TwinBuilder, real name Adam Mason, is a prominent protagonist of the Destroy the Godmodder series, and is TwinBuilder's main character in Destroy the Godmodder and Destroy the Godmodder 2. He is for all intents and purposes TwinBuilder's author avatar, serving as a self-insert in DTG1 before developing an actual character in DTG2 and the game's postcanon content. Though he was a normal Descendant in DTG1, Adam became the First Guardian of Minecraft thanks to the Operator in DTG2, attempting to influence the Narrative to allow for the Godmodder's destruction. Due to complications, Adam was summoned directly to the Battlefield during the fight and was divided into two distinct personalities, Build and Split. These personalities then gained their own bodies, effectively annihilating the original 'Adam Mason.'

It has been evidenced throughout DTG2's postcanon content that Adam Mason, though an inhabitant of Universe B's Earth, was not born in said universe.