15. Carmen Sandiego
Here's one for the youngsters: Carmen Sandiego is a math-based puzzle adventure game and while it's labeled "educational," it makes math a lot of fun. Are the Metro apps dumbed down? Maybe. Do the majority of users care? No. And that point brings us full-circle back to the discussion of Metro vs. Classic.
Most users go to a website or a desktop program for one specific purpose and rarely need advanced options. This is the Metro experience. It distills sometimes complex information and tasks down into a very clear and simple interface. It's what most users want. And even us techies sometimes love the simpler approach to things.