I have a spare 14€ as savings from my Xbox Live Rewards, so it should be "free" for me. I didn't check the price, but after seeing the video, I would like to have it in my games list.
http://www.winbeta.org/news/retro-inspired-sci-fi-game-project-root-now-available-xbox-one
http://www.winbeta.org/news/retro-inspired-sci-fi-game-project-root-now-available-xbox-one