The Dominion of Katamari is a gargantuan, cultured nation, ruled by Queen of All Cosmos with a fair hand, and notable for its free-roaming dinosaurs, state-planned economy, and national health service. The compassionate, democratic, cheerful, devout population of 20.954 billion Katamarians are free to do what they want with their own bodies, and vote for whomever they like in elections; if they go into business, however, they are regulated to within an inch of their lives.

The enormous government juggles the competing demands of Education, Industry, and Welfare. It meets to discuss matters of state in the capital city of Matsuyama. The average income tax rate is 98.6%.

The frighteningly efficient Katamarian economy, worth a remarkable 4,024 trillion Japanese mons a year, is driven entirely by a combination of government and state-owned industry, with private enterprise illegal. The industrial sector, which is quite specialized, is led by the Tourism industry, with significant contributions from Book Publishing and Information Technology. Average income is an impressive 192,043 Japanese mons, and distributed extremely evenly, with practically no difference between the richest and poorest citizens.

Discrimination on the basis of sexual orientation is illegal, abortions are routinely performed in the nation's hospitals, torture is illegal, and the nation leads Mito Tsukino in per capita stalking. Crime is totally unknown, thanks to a capable police force and progressive social policies in education and welfare. Katamari's national animal is the Red-crowned crane, which is also the nation's favorite main course, and its national religion is Shinto.

Katamari is ranked 4,545^th in the world and 1^st in Mito Tsukino for Highest Poor Incomes, with 166,140.77 Standard Monetary Units.