Amazon now lets you buy games on its cloud gaming service -- but only Ubisoft ones

Image: Ubisoft Amazon now offers the ability to buy games on its Luna cloud gaming service, but the new feature comes with a big catch: at least for now, you'll only be able to buy select Ubisoft titles. For me, Amazon was advertising games you can buy right on the main Luna homepage, including the just-released Assassin's Creed Mirage. However, if you end up buying an Ubisoft game on Luna, you'll need an Amazon Prime or a Luna Plus subscription to be able to stream that purchased game, accordin...