Australia's federal government has
backed a proposal to add an 18+ rating for video games, legalising games not suitable for 15-year-olds. Currently, such games are illegal to sell in or import into Australia. This has led to some anomalies: games are banned because the classification board considers that they might encourage illegal activity, however tenuously (one shooter was banned because medical kits one could pick up to boost one's life force looked like syringes which could encourage intravenous drug use), while elsewhere, the censorship board gives games which would get 18+ ratings elsewhere MA15 ratings (after all, you don't want to ban everything this side of Little Big Planet, do you?)
Of course, it's not a done deal yet; any change would need unanimous support from state attorneys-general, and until recently, South Australia's AG, a right-wing Christian authoritarian (and Labor Party member), has been vetoing it.
The government's hand was possibly forced by its tenuous coalition with the Greens, who are far more progressive on these issues than the major parties; the Labor Party who lead the coalition still officially support a national internet censorship firewall, after all. The conservative opposition coalition have not made any statements on an 18+ rating for video games.