He was worshiped by the Children of the Cathedral and served as the primary antagonist of Fallout. He is eventually defeated by the Vault Dweller.
At times, the Master was referred to as the "Dark God," especially by those opposed to the Children of the Cathedral. By his Children, he was referred to as the "New God," "the Holy Flame," and "Father Hope." A hideous FEV-mutated creature that has somehow hybridized with not only other human mutants, but also computers, turning him into a rather grotesque monster who speaks in multiple voices. Apart from his appearance, one of his most notable features is his unique way of speaking. His voice is computer-generated and sentences are composed, apparently in real-time, from samples of several people's speech.