From the rules:
Anarcha Australis is set in Australia...around 2020. After the Total Economic Collapse...[of] 1993...Australia turned into a total anarchy. Looting and other crimes turned rife as the prices on commercial products skyrocketed; the government attempted to bring back economic order by re-evaluating the economy, and released the $500 coin. However, it was too late; the entire country collapsed. In the next five years, crime, disease and famine ruled as families attempted to survive in the total chaos of post-economic collapse. The government, after its initial attempts of stabilisation, faded away.
User summary:
Released only as an ASCII text file. The core rules are minimal but nearly complete. The game often is referred to online as Anarcho Australis (with an "-o") but the rules consistently use Anarcha Australis.