It appears as if Microsoft has begun a new program that would allow Gold subscribers to demo certain games for a 24 hour period, according to an image shared on Reddit.
"Yes I am in the preview program. I already own the game so it doesn't work for me. All it does for me is go to the store and I can select play from there because I already own it," the Reddit user posted.
We've reached out to Microsoft for comment, and have yet to hear back at the time of publication. Having a way to allow users to play a game for free for a day would be a nice addition for Xbox Live subscribers, and could also be a powerful promotional tool for the games supported.
Xbox Support seemed to confirm this as a new feature.
@PrestoFriend531 Gotcha. Looks like it is actually. We'll be in touch here shortly. :) ^AD— Xbox Support (1-5) (@XboxSupport) August 20, 2014