The Fallout series is famous for its varied and complex factions that appear throughout the irradiated post-apocalyptic United States. From the medieval-structured, technology-driven Brotherhood of Steel to the Roman-inspired, totalitarian dictatorship Caesar's Legion, organizations and societies of all kinds have filled the vacuum left by the United States’ government to mold the lives of survivors continent wide. In recent Fallout entries, Bethesda Game Studios has created several new factions for players to join and interact with, such as the Minutemen, the Institute, and multiple raider clans. However, with Fallout 5 eventually being produced, Bethesda should consider featuring one particular faction in the next mainline entry to showcase a multi-game-long evolution: the Railroad.