It's here! The first Halo game to make its way to the hallowed PC platform since Halo 2! Well, to the PCs-running-Windows-8 platform, that is. Halo: Spartan Assault is now available, exclusively to Windows 8 gamers, to purchase via the Windows store. Since Vista exclusivity worked so well with Halo 2, we can only imagine that sales of Windows 8 are now gonna go through the freakin' roof.