For the month of August, Xbox Live Gold members will receive four new free games – two on Xbox One and two on Xbox 360 – as part of the Games with Gold program.
On Xbox One, Xbox Live Gold members can download Metal Gear Solid V: Ground Zeroes ) for free during the month of August. How to Survive: Storm Warning Edition will be available as a free download from August 16th to September 15th.
On Xbox 360, starting Saturday, August 1st, Metro 2033 will be free for Xbox Live Gold members through August 15th. Then on August 16th, Xbox Live Gold Members can download Metro: Last Light for free through August 31st.
Information Source: MajorNelson