The Romano-British Empire of Macsen Wledig is a massive, safe nation, ruled by Ymerawdwr Macsen Wledig with an iron fist, and renowned for its smutty television, compulsory military service, and punitive income tax rates. The hard-nosed, cynical population of 3.183 billion Romano-British are kept under strict control by the oppressive government, which measures its success by the nation's GDP and refers to individual citizens as "human resources."

The enormous, well-organized government juggles the competing demands of Defense, Law & Order, and Education. It meets to discuss matters of state in the capital city of Caer Segeint - Segontium. The average income tax rate is 54.6%, and even higher for the wealthy.

The large but inefficient Romano-British economy, worth 104 trillion Romano-British Ceiniogs a year, is quite specialized and led by the Door-to-door Insurance Sales industry, with major contributions from Cheese Exports, Beef-Based Agriculture, and Tourism. State-owned companies are reasonably common. Average income is 32,747 Romano-British Ceiniogs, and evenly distributed, with the richest citizens earning only 2.1 times as much as the poorest.

Schoolyard sandboxes resemble ashtrays due to the large number of cigarette butts, Macsen Wledig has designated Caer Segeint - Segontium as its capital city, Ymerawdwr Macsen Wledig has just been declared ruler of Macsen Wledig in an international press conference, and Romano-Celtic Christianity has been named as Macsen Wledig's national religion. Crime, especially youth-related, is totally unknown, thanks to the all-pervasive police force and progressive social policies in education and welfare. Macsen Wledig's national animal is the Red Dragon and its national religion is Romano-Celtic Christianity.

Macsen Wledig is ranked 271,670^th in the world and 64^th in Caer Sidi for Largest Furniture Restoration Industry, scoring -6.16 on the Spitz-Pollish Productivity Index.