I want a portable machine designed to do only one thing: run Sid Meier's Civilization V---that's it. I have been scouring the internet for months trying to find a way to build a portable machine that's only purpose is to run civ 5. I don't want a full-fledged laptop because that has too many unneeded items such a full keyboard and software I won't ever use. Plus, the power to cost ratio isn't good enough to justify a purchase. Something like a tablet with usb ports would be perfect, but those lack the power I want for the price I need. I'd love to put it together myself because I have some experience building desktops, but I lack the knowledge on how I'd build something portable and am unfamiliar with electronics beyond the simplicity of assembling a tower. Is it at all possible to achieve my "Civ Gameboy" dream, or is it just fantasy?