Making the most of Windows 8 and Windows 8.1 doesn't mean you have to spend a lot of money. We've put together a list of the top ten apps for Windows 8 that wont cost you a penny to install. From apps for movie making, to movie watching; sketching, gaming and apps to help you when you're programming, all available to download right now, for free. So long as you can control yourself during a Steam sale these apps should give you endless joy, without hurting your wallet.