Bad news for Australians unfortunately! Fallout 3 has fallen short of the very strict RC ratings by the Office of Film and Literature Classification.
Strangely, the system does not allow video games to be granted a rating above 15+, whilst movies can be granted an 18+.
This rating does, unfortunately, render the game banned from sale in Australia.
The most recent example of a game that fell short of the ratings system was Dark Sector, by D3P, which eventually cleared the ratings after extensive cuts to the games content.