Microsoft is throwing a House Party on Xbox LIVE in February and they're bringing several new games to their Xbox 360 and Windows Phone 7 between the PC classic Torchlight to a HD remake of Beyond Good and Evil in addition to Hard Corps Uprising.
The announcement of the House Party promotion came following Microsoft CES keynote with promises to kick them back on February 16. Hard Corps Rising may be the first game but no schedule was handed as to if your rest will likely be released. Presumably it will likely be one or two games every week over a month-long period you need to include some other form website of incentive to buy all of the games like previous promotions.
These include the games based on a Microsoft website article.
Xbox Live Arcade:
Windows Phone 7: