Today Microsoft added Crackdown 2 as a backwards compatible game on the Xbox One, in addition Microsoft has also allowed Crackdown 2 to be downloaded for free. This means now both the original Crackdown and Crackdown 2 can be downloaded for free on both the Xbox 360 and Xbox One.
I'm personally a big fan of both of these games, so for free both are well worth checking out. If you enjoy these games then Crackdown 3 is more of the same crazy, open world fun.
Crackdown on the Xbox Marketplace Download
Crackdown 2 on the Xbox Marketplace Download
We're not sure if both Crackdown games will both be free indefinitely, so its worth adding them to your library sooner, rather than later.
Remember: Skills for Kills, Agent. Skills for Kills.