Happy fifth birthday, Apple’s App Store. It is legitimately very hard to believe that Apple’s App Store has only been around five years, but we’ll just have to take them at their word on that one. In any case, they’re celebrating by having a fire sale on a lot of their apps, and some of Apple’s very best games are selling for free. Here’s a list of what you can download, and when you do it, don’t forget to wish the App Store a happy birthday for its (alleged) five years …