Does it make sense to have Industrial Revolution and Factories in a game without a mass market for consumer goods? Factories allowed to produce consumer goods at a rate several hundred times higher than in normal production. The workers earned more money and could afford buying more consumer goods forming a new mass market for factory produced goods and so encouraging further industrialisation. In Civ 6 the effect of Factories on production is almost neglectible compared to other effects. Effect on population is non existant. In 19th and 20th century factories allowed mass production of military equipment and supplies. However in Civ 6 demand for military units in late game is low since you have your experienced, upgraded core troops and damaged units heal on their own without using any kind of industrial output (no equipment, no supplies, no ammo).