Microsoft has launched its 12 days of Christmas Xbox deals promotion.
Included are hefty discounts on games, add-ons, avatars and more Xbox Live gubbins.
Kicking things off is 50 per cent off Supergiant Games' debut Bastion.
As Major Nelson notes, these special discounts won't last more than a day. Microsoft will announce new deals daily.
He also reminds Xbox owners of a raft of special offers Microsoft is running until 2nd January 2012, including half off Renegade Ops, Insanely Twisted Shadow Planet, Portal: Still Alive and more.