Major Nelson has announced the games we’ll be able to download for free in December.
For Xbox One, you’ll be able to download The Incredible Adventures of Van Helsing for free during the whole month of December and Thief will be free for download from December 16th to January 15th.
On Xbox 360, you’ll be able to download Castlestorm from the 1st December until December 15th. Then on December 16th, Sacred 3 will be free for download until the end of the month on the 31st December. As a special holiday treat Operation Flashpoint: Dragon Rising will be free on Xbox 360 for the whole month of December too!
So that’s five games for December, neat huh? Maybe 4 or 3? I seem to remember Thief being free on 360 and Castlestorm was free on Xbox One at some point but hey! Free games! Plus the 360 titles should be backwards compatible meaning you can play them on your Xbox One anyway!