Destiny 2 is a Deal of the Day on Amazon. Looks to to the cheapest so far. Pick a ParcelPoint to get it for ~$40.10AU delivered.
For those that want to try before deciding to pony up - there is a free trial of the game here.
I don't own it myself so will be giving the trial a go. Also appears to be same price for Xbox One and PS4.
From the makers of the acclaimed hit game Destiny, comes the much-anticipated sequel
An action shooter that takes you on an epic journey across the solar system
Humanity’s last safe city has fallen to an overwhelming invasion force, led by Ghaul, the imposing commander of the brutal Red Legion
To defeat the Red Legion and confront Ghaul, you must reunite humanity’s scattered heroes, stand together, and fight back to reclaim our home
Thanks to bobjane, this cannot be activated in Australia so will expire it.
Destiny 2 PC is region locked. I don't think you'll be able to activate the Amazon version here.