Romanus is the setting for Pax Romanus. It is an empire that is ruled by an emperor or First Lord, along with High Lords ruling the various cities. Their civilization is based on the Roman Empire. In its history, it has beaten and destroyed numerous enemies including but not limited to, the Nradian Union, the Vearuns, and the Avons.
The empire has fallen into corruption and decay in recent years. While peace has reigned and tribute from foreign countries pours in, the Lords of the land generally waste their wealth in opulent displays of grandeur and power.
The current emperor sits on the throne through a legal technicality and an extremely strong alliance with many of the wealthiest and most powerful of the High lords.
The land and nation of Romanus, it constitutes most of a continent, ending at the coast to the west and partially the north, the Deveron Valley and river to the realm of the Nradians, Nard, to the north, the realm of Avon to the east, and the Southern Mountains to the south.
The nation is divided into state-like territories named for the prominent cities, each ruled by a High Lord. Inside these territories exist various towns and steadholts (villages) where the majority of the free, non-citizen populace live. Each city fields the Legions that make up the military of Romanus. These cities, and their lords at the beginning of the campaign, are:
- Resolutum Imperia, ruled by the First Lord Resolutia Julius and First Lady Resolutia Caria
- Acipit, ruled by High Lord Acipitus Raucus and High Lady Acipitus Dorotea
- Ambulatum, ruled by High Lord Ambulatia Herius
- Bracii, ruled by High Lord Bracia Avitus
- Cestii, ruled by High Lord Cestiis Attis and High Lady Cestiis Invidia
- Crassus, ruled by High Lord Crassus Quentin
- Dellii, ruled by High Lord Dellii Macius
- Draci, ruled by High Lord Dracium Forcius
- Eros, ruled by High Lord Kalarus Eros Brencis
- Gladius, ruled by High Lord Gladia Decimus
- Grachi, ruled by High Lord Grachium Tertius
- Malum, ruled by High Lord Malus Sandos and High Lady Malus Aria
- Marro, ruled by High Lord Marria Guntus
- Naro, ruled by High Lord Narium Martinus
- Pedes, ruled by High Lord Pedium Grantus
- Sapientiae, ruled by High Lord Scientiam Aulus
- Scientiae, also ruled by High Lord Scientiam Aulus
- Vocun, ruled by High Lord Vocuia Amulius
- Videx, ruled by High Lord Videm Parcius