Civ5 Gold, Civ4 Gold, and XCOM for $15
So this entire text is going to be a link to the amazon deal for the sale. 

Its currently a bundle, for $15 of $120 worth of games. All of the games are able to be added into your steam library by activating the keys given.

Hope you're all having happy holidays!

It should also be noted that today (25th of December 2013) the game Left 4 Dead 2 is FREE on Steam... but the Steam website is down for now, I hope it'll be back so I can get it. =)

Left 4 Dead 2 (via Steam)Price: 100% FREE