Will a UK retail copy of the game install and work on my Australian Steam account? Or is it region locked?

Bump. I just want to know if UK retail activates on AUS Steam account.

It should be fine.

I've done it before with other titles that were under the same [censored] restrictions.

Yep it did indeed work and I got a message from Bethesda support confirming it should work too

I bought the game from www.greenmangaming.com (for $53) saving over $30.