Microsoft has announced its May selection of Games with Gold titles that will be free to download next month for Xbox Live Gold subscribers.
Xbox One owners can nab a free copy of 2D tower defence title CastleStorm: Definitive Edition. PoolNation FX is also free for a second month.
Meanwhile, Xbox 360 owners can download 2K mob shooter Mafia 2 for free from 1st-15th May.
That will be followed by F1 2013, which will be free from 16th-31st May.
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