The Commonwealth of Decrosca is a huge, safe nation, renowned for its avant-garde cinema, anti-smoking policies, and complete absence of social welfare. The hard-nosed, hard-working, cynical, humorless population of 343 million Decroscans 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 medium-sized, corrupt, moralistic, well-organized government juggles the competing demands of Law & Order, Industry, and Defense. It meets to discuss matters of state in the capital city of Sim City. The average income tax rate is 33.1%.

The frighteningly efficient Decroscan economy, worth 32.1 trillion Simoleons 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 a large, well-organized, broadly diversified black market in Uranium Mining, Information Technology, Door-to-door Insurance Sales, and Furniture Restoration. 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 93,539 Simoleons, and evenly distributed, with the richest citizens earning only 3.0 times as much as the poorest.

The nanny industry has had a boom after maternity leave was recently banned, teachers regularly paddle unruly students, Big Brother is still watching even when your big brother is dead, and the government makes bereaved siblings into bereaved orphans. Crime, especially youth-related, is totally unknown, thanks to a well-funded police force. Decrosca's national animal is the Cockroach, which teeters on the brink of extinction due to widespread deforestation.

Decrosca is ranked 55,586^th in the world and 1,038^th in The East Pacific for Most Scientifically Advanced, scoring 134.7 on the Kurzweil Singularity Index.