June 2015's Games with Gold line-up has been announced, with Double Fine's Kickstarter funded Massive Chalice the stand out title for Xbox One.
Massive Chalice is a tactical strategy game set in a fantasy world, in which players step into the shoes of the Immortal Ruler and must defeat a mysterious enemy known as the Cadence.
Also on Xbox One is Pool Nation, for another month. Both games will be free from June 1 to June 30.
On Xbox 360 there's Just Cause 2 available free from June 1-15 and then Thief from June 16-30.
Source: Xbox Wire