The Casual Psychosis of Zombie 13 is a gargantuan, efficient nation, ruled by Slurptongue with an even hand, and renowned for its ban on automobiles, state-planned economy, and ritual sacrifices. The hard-nosed, humorless, devout population of 10.959 billion Zombie 13ians are prohibited from doing almost everything except voting, which they do timidly and conservatively.

The medium-sized, corrupt, moralistic, socially-minded government juggles the competing demands of Law & Order, Defense, and Administration. It meets to discuss matters of state in the capital city of Brainston. The average income tax rate is 77.1%.

The frighteningly efficient Zombie 13ian economy, worth a remarkable 3,423 trillion z13s a year, is driven entirely by a combination of government and state-owned industry, with private enterprise illegal. However, for those in the know, there is an enormous, deeply entrenched black market in Arms Manufacturing, Information Technology, Woodchip Exports, and Uranium Mining. The private sector mostly consists of enterprising ten-year-olds selling lemonade on the sidewalk, but the government is looking at stamping this out. Average income is an amazing 312,395 z13s, and evenly distributed, with the richest citizens earning only 4.1 times as much as the poorest.

Giggling elementary school newspaper reporters want to know why Slurptongue is a silly poophead, judicial robes are the country's hottest fashion trend, unemployed mercenaries drift the country looking for new careers, and bowling teams spend more time looking at their phones than the pins. Crime, especially youth-related, is totally unknown, thanks to a well-funded police force and progressive social policies in education and welfare. Zombie 13's national animal is the z13, which teeters on the brink of extinction due to widespread deforestation, and its national religion is Money.

Zombie 13 is ranked 39,707^th in the world and 265^th in NationStates for Largest Populations, with 11.0 billion capita.