The Civilisation Game of Mastodonia is a gargantuan, safe nation, ruled by Shepard Blaine with a fair hand, and notable for its digital currency, sprawling nuclear power plants, and prohibition of alcohol. The compassionate, democratic, cheerful population of 12.375 billion Mastodonians 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, liberal, socially-minded government prioritizes Education, although Administration, Environment, and Healthcare are also considered important, while Defense and Spirituality aren't funded at all. It meets to discuss matters of state in the capital city of The City. The income tax rate is 100%.

The frighteningly efficient Mastodonian economy, worth a remarkable 2,798 trillion Postagestamps a year, is highly specialized and mostly made up of the Information Technology industry, with significant contributions from Book Publishing and Tourism. State-owned companies are common. Average income is an amazing 226,181 Postagestamps, and distributed extremely evenly, with practically no difference between the richest and poorest citizens.

Refugees from other nations are flocking to Mastodonia's border, disability advocates are not amused that they are told to be dependent on Mastodonians's kindness, people who tease dwarfs are being cut down to size, and unemployed school bus drivers photobomb virtual classroom meetings. Crime, especially youth-related, is totally unknown, thanks to a capable police force and progressive social policies in education and welfare. Mastodonia's national animal is the mastodon, which frolics freely in the nation's many lush forests, and its national religion is Project Pope.

Mastodonia is ranked 1,510^th in the world and 37^th in 10000 Islands for Most Scientifically Advanced, scoring 885.57 on the Kurzweil Singularity Index.