PlayStation Blog: It’s pretty clear that March was a banner month for PlayStation Network. As you may already know, Journey was recently proclaimed PSN’s fastest-selling game. It should come as no surprise to see that it’s also March’s top selling PSN game! Our hats are off to thatgamecompany for making a truly unique experience that you can only find on PSN. We also saw the debut of the free-to-play Killzone 3 Multiplayer, Motorstorm RC and Mass Effect 3. All of them proved to be big movers and shakers as they all made their debut in the top 20.