Valiant Hearts is being offered for free, usually $6.
It's a bit fiddly and seems to only work on Ubisoft China. It does show up in the NZ store as free in search but not on product page.
1) On your phone (not desktop), claim the game in the OP link. No VPN required.
2) Open up uplay and you'll be able to see it in your games.
Otherwise just play around a bit and it seems to work. The usual complicated Ubisoft quirkiness.
Free until August 4th.
This is the story of crossed destinies and a broken love in a world torn apart.