Xbox owners/Xbox Live Gold subscribers are due for a quadruple helping of free Xbox One/Xbox 360 titles for May 2016. Xbox One owners, as usual, get the benefit of all four releases thanks to Xbox 360 backwards compatibility as usual.
Sooo… for the Xbox One, Defense Grid 2 will be available for free all throughout May, and Costume Quest 2 will follow up from May 16th to June 15th. For the 360, GRID 2 will be free from May 1st through May 15th, and then from May 16th until the end of the month the freebie will be Peggle.
Hop on over to Major Nelson's for the details.