Obsidian Entertainment ingeniously turns the battle over Hoover Dam into a version of Caesar’s famous Crossing the Rubicon: The river of which the forces of Julius Caesar crossed as their point of no return before seizing Rome itself and taking control of the empire. However, as the world reveals itself to the player, the role of Caesar’s Legion becomes clearer. When players first see the Legion in New Vegas’ opening cinematic, they might be forgiven for initially feeling the faction is out-of-place in its world. It’s hard to imagine a Fallout game set outside of the former United States. Obviously there was no Roman Empire in the Americas, and the choice undoubtedly sticks out in a franchise so deeply invested in Americana.
Obsidian then totally integrates the Legion into New Vegas' world to make it a believable, if over-the-top, political player.
What makes Caesar’s Legion so special, however, is the developers went out of their way to create a faction which would seem totally out of place in the wasteland. Fallout: New Vegas made a great choice with the Mojave Wasteland, allowing Obsidian Entertainment to experiment with genres from Westerns to Mafia films throughout Fallout’s post-apocalyptic America. When fans find out a new Fallout game is in the works, the game’s setting is always one of the first pressing questions from the community.