Microsoft is making moves lately, and they don't disappoint. Starting now, Halo: Spartan Asault becomes the first universal Windows app, marked with a new "Made for Windows Phones and PCs" icon and text. This means you can buy it on one device, and download it across all your Windows-running gadgets without spending additional bucks. As Microsoft has already begun accepting submission for universal apps, came up with unified pricing tiers and added automated certification, we should be seeing more of these apps pretty soon.
Halo: Spartan Assault costs $4.99 and is available for Windows 8, Windows RT, and Windows Phone 8, although the game still carrier-exclusive in some regions until August. If you don't have it already, soldier on to the links below to get it on your device.