Larry Hryb announced the new Games with Gold for Xbox today and here they are:
June 1 – June 30: EA Sports NHL 19
June 16 – July 15: Rivals of Aether
June 1 – June 15: Portal: Still Alive
June 16 – June 30: Earth Defense Force 2017
These games are free if you are a subscriber of Xbox Live. The Xbox One games will only be playable as long as you keep your subscription active, but the 360 games will be available to play from your digital library, even if you let your service lapse.