Microsoft is throwing a House Party on Xbox LIVE in February and perhaps they are bringing several new games to the Xbox 360 and Windows Phone 7 which range from 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 the Microsoft CES keynote with offers to kick them back online games free super mario on February 16. Hard Corps Rising is definitely the first game but no schedule was handed as to if your rest will likely be released. Presumably it will probably be one or two games weekly over a month-long period and include some other type of incentive to obtain all of the games like previous promotions.
These will be the games in line with a Microsoft news release.
Xbox Live Arcade:
Windows Phone 7: