The Empire of Rat Overlord 100 is a massive, orderly nation, notable for its burgeoning rat population. The cynical population of 1.545 billion Rat Overlord 100ians are ruled with an iron fist by the dictatorship government, which ensures that no-one outside the party gets too rich. In their personal lives, however, citizens are relatively unoppressed; it remains to be seen whether this is because the government genuinely cares about its people, or if it hasn't gotten around to stamping out civil rights yet.

The medium-sized, well-organized government juggles the competing demands of Law & Order, Defense, and Healthcare. The average income tax rate is 27.5%, but much higher for the wealthy.

The sizeable but underdeveloped Rat Overlord 100ian economy, worth 44.3 trillion rats a year, is led by the Tourism industry, with major contributions from Trout Farming, Furniture Restoration, and Soda Sales. Black market activity is notable. State-owned companies are common. Average income is 28,671 rats, and distributed extremely evenly, with little difference between the richest and poorest citizens.

Crime is almost non-existent, thanks to a well-funded police force and progressive social policies in education and welfare. Rat Overlord 100's national animal is the rat.

Rat Overlord 100 is ranked 277,667^th in the world and 1,905^th in TPFKAQ for Most Scientifically Advanced, scoring -63.64 on the Kurzweil Singularity Index.