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XCOM 2 PC for AU$53.29.
INCLUDES: Resistance Warrior Pack DLC - Customize your squad of resistance fighters with bonus outfits, headgear, and custom facial war paint.
It has been cheaper (aussie dollar) but this is currently the cheapest price I've seen for this game.
The digital deluxe version is cheap on this site as well @ AU$73.80:
http://www.cdkeys.com/pc/games/xcom-2-digital-deluxe-edition…
Or for those that have the original game, but want the Season pass (reinforcement pack) @ $24.59:
http://www.cdkeys.com/pc/games/xcom-2-reinforcement-pack-pc-…
Was $2 cheaper a few hours ago.