Microsoft recently announced which games would be available for free in March as part of the Games With Gold program. On Xbox One, Sherlock Holmes: Crimes and Punishments will be free all month, while Lords of the Fallen will join from March 16th to April 15th. For the Xbox 360, you can pick up Supreme Commander 2 until March 15th and Borderlands in the second half of month. Supreme Commander 2 and Borderlands will also be playable on the Xbox One through the Backwards Compatibility program.
Source: Major Nelson