Late last year, Amazon Luna and Ubisoft deepened their partnership by allowing subscribers to stream the developer's games that they already own on PC. So it doesn't really come as a surprise that Amazon has chosen to team up with Ubisoft to debut a new feature on its cloud gaming service: The capability to buy games from the platform and not just stream them. Subscribers can now purchase select Ubisoft games from the developer's portal on Luna, and the selection includes several Assassin's Creed titles, the Far Cry games, Child of Light and Watch Dogs. Customers will be ab...