Quote1 A corpse! This whole place is set-up to protect and serve a dead man! Quote2
-- Cosmic Boy src

The Engineer was apparently a misanthrope with a penchant for Terran-history and fantasy. He chose to design and program an artificial planet, in which to live out a lifetime of entertainment. But eventually he died, and his planet lived on, still trying to entertain and tend to its dead master. When his fantasy world destroyed a star system, the Legionnaires intervened to discover the planet was creating adventures for a corpse.