The censored version is pathetic, here are the steps I used to buy the uncensored version.
NOTE: This guide explains how you can purchase the uncensored game. There is a way to unlock the AU version but its not playable online.
I've been told that you can simply load up the any other Steam Store & purchase the game, but I used a VPN too.
You can skip the VPN section but I didn't really want to take this risk.
1) Setup a VPN (free VPN providers listed below)
2) Purchase game from the UK or US Steam Store
You can trial a VPN (Virtual Private Network) service to give yourself a non-Australia IP.
You'll need to follow the instructions on the VPN provider's website. Its pretty easy, you signup, start the trial & download a 'PPTP' client which will do all the windows configuration.
Once you've set that up make sure you visit http://www.whatismyip.com/ to double check that your running through the VPN. Your IP should be different to what it is usually. If you don't know your IP, go to the website before & after you connect to the VPN.
Buying the Game
I bought it from the UK store, heres the link: http://store.steampowered.com/?cc=uk
Simply add to your basket & purchase as usual.
When you get to filling in your address, you will obviously need UK address details:
- State: W12
- Postcode: 7TQ
- Country: United Kingdom (duh)
Now you should have the International version linked to your account.
Downloading the Game
You can disconnect from the VPN to download your game files. Once the purchase is done you own the International version (app 550) & Steam will download that version wherever you are.
If you have already got the game, you can return it.
1) Go to Steam Support & Ask a Question here.
2) File your question under 'Billing > Preorder'
3) Tell them the censored game isn't up to par.
They'll refund the game within a couple hours.