The Major has just revealed the line-up of games that will be available to download for free next month as part of the Games with Gold May titles. Coming in on Xbox One is an extension of Pool Nation and the arrival of CastleStorm: Definitive Edition which normally retails at $14.99. On Xbox 360 gamers can snag Mafia II for the first half of the month and then F1 2013 for the second.