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.
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.