https://youtu.be/4r7tOlek7hQOn Xbox One, Xbox Live Gold members can download Gears of War 4 ($29.99 ERP) for free during the month of August. Forza Motorsport 6 ($29.99 ERP) will be available as a free download from August 16th to September 15th.
On Xbox 360, starting August 1st, Torchlight ($14.99 ERP) will be free for Xbox Live Gold members through August 15th. Then on August 16th, Xbox Live Gold Members can download Castlevania: Lords of Shadow ($19.99 ERP) for free through August 31st.