In many campaign settings for the Dungeons & Dragons role-playing game, Moloch is an arch-devil of Hell (Baator in later editions of the game), and once served as the viceroy of Baalzebul.
Moloch is the ultimate enemy the mankind was to encounter in the fictional world of a Polish role playing game Neuroshima. It is an evil artificial intelligence in a form of an enormous conglomerate of steel, concrete and computers, located on the northern area of the US, ranging from Oregon to Wisconsin. It gained independence from humans and emerged in 2020s.