Gaming PCs are meant to be big, right? They're meant to be in full-sized PC tower cases, with big loud case fans. And they're usually pretty ugly, if we're honest, and dump a whole bunch of waste heat at your feet while you're playing games. Oh, and they're meant to be built from off-the-shelf components, which means you're almost always better off buying them yourself and putting your own machine together rather than buying a pre-built machine. MSI's tiny Vortex G65 powerhouse gaming PC challenges all that.