Republic of Rome

The Republic of Rome faction is a non-playable faction that only appears in the Pyrrhus Campaign of the Eagle King DLC, where it is the main antagonist of the player.

In terms of faction attributes, the faction is identical to the Rome faction of the Unification Sandbox. The icon is changed to match the iconic shield design of Roman legionaries as depicted on Trajan's Column, including eagle wings and thunderbolts as a reference to Jupiter, which is arguably more fitting for the later timeframe in which the campaign takes place.

The Republic starts the campaign as controlling no less than 56 cities. Besides the territory normally owned by Rome, they have fully assimilated the entire Volsci faction as well as the city of Veii, giving them 11 native cities. Additionally, they control (but have not assimilated) all cities native to the Senones (who have assimilated 3 cities from the Umbri and Picentes), Umbri, Sabines, Marsi, Frentani, Dauni, Peuceti, Thurii (a 2-city faction that replaces Sybaris in this campaign) and Rhegion, and also control some of the cities native to the Etruria faction. Additionally, the faction controls a series of camps among the Lucani, but doesn't actually control the Lucanian cities directly.

Many of the cities controlled but not assimilated by the Romans can be made to rebel and revert to the ownership of their respective native factions by completing the optional "A Fourth Samnite War" objective, in which the player must defend the cities of the Samnites against a Roman invasion.

In-game Description
"The Senatus Populesque Romanus, or Roman Republic, was established in 509 BCE following the overthrow of Tarquinius Superbus. The Republic has conquered and Romanized all its immediate neighbours and dominates Italian politics."