If I buy a game on a DVD from the US (e.g. from Amazon) can I still use it in...

[PatrickSong]

...Australia? I want to buy a game (Civilization V) form Amazon in disc format, so it comes on a DVD sent to me.Will it still work on my PC?
BTW The game runs on Steam.

 

[JamesL]

it shouldn't have a problem but i don't know never brought a game from the us but should work