Microsoft is throwing a House Party on Xbox LIVE in February and they're bringing numerous new games to the two Xbox 360 and Windows Phone 7 between the PC classic Torchlight with an HD remake of Beyond Good and Evil along with Hard Corps Uprising.
The announcement of the House Party promotion came following your Microsoft CES keynote with intentions to kick rid of it on February 16. Hard Corps Rising would be the first game check here but no schedule was presented with as to once the rest are going to be released. Presumably it will probably be one or two games each week over a month-long period you need to include some other almost incentive to get all of the games like previous promotions.
These are definitely the games as outlined by a Microsoft blog post.
Xbox Live Arcade:
Windows Phone 7: