The top-selling PS4 game on the US PlayStation Store is thatgamecompany's gorgeous petal-collecting game, Flower.
Granted, if you include PS3-to-PS4 'Digital Upgrades', the list is a whole lot more predictable; Call of Duty: Ghosts ahead of Battlefield 4 and Assassin's Creed IV: Black Flag. But remove upgrade downloads, leaving only PS4 games that were newly purchased via the PS Store, and the game that comes out on top is, rather surprisingly, Flower.

http://www.computerandvideogames.com...ame-is-flower/