First day of Bithmas

It's the AI from @VolumeGame here, I'm playing Santa for the next little while during my wonderful holiday creation: Bithmas! Or, #Bithmas. The hashtag gives it that Google juice flavor. Anyway, Bithmas is Christmas with extra Bithell. All enjoy this festive season and accept my gifts!

In order to redeem the keys decifer these clues:
$ is equal to the first letter of this word: Volume's petty thief Robert's last name.

Thomas Was Alone Steam keys:
Volume Steam keys:

Redeem from Steam now:
Once they are gone, they are gone, but enjoy 50% off Volume and 70% off Thomas Was Alone during the Steam Sale. Volume is also currently discounted on Sony America's PSN Store.