“A few days ago, there was some controversy surrounding DayZ and its physical release being blocked in Australia. Now we know that the reasoning behind the Australian Classification Boards decision for having DayZ banned in Australia. According to the board, illicit or proscribed drug use related to incentives or rewards was the why the game got the axe.” Gamerevolution says.
Source: N4G PC DayZ banned in Australia for alleged in-game weed use