Today is the final day for Xbox Live Gold members to grab a pair of free Games With Gold titles.
One of the two, Thief for Xbox One, has been free since mid-December and will be returning to its regular price after today. The other, Dirt Showdown for Xbox 360, has been free since the beginning of January. It, too, will return to its regular price following today.
You can claim both games through the links below, along with the Killer Instinct: Season One Ultra Edition, which will remain free through the end of January. Keep in mind that Xbox 360 games offered through Games With Gold are backwards compatible, so there's still a reason to grab Dirt Showdown even if you don't have your 360 hooked up anymore.
Thief (Xbox One)Dirt Showdown (Xbox 360)Killer Instinct: Season One Ultra Edition (Xbox One)January's second batch of Games With Gold titles will go free starting tomorrow, January 16. Zheros for Xbox One will then be free until February 15, while Deus Ex: Human Revolution will be free until January 31.