Games (or other software) can run at resolutions higher than your desktop rez. They can't do it in the manner that Civ appears to be using where it is a basic "window", but with some coding changes it would certainly be possible. The question was just whether or not they had implemented anything like that or not.
Full 3D games generally support any resolution because they might as well... they already need to run in a mode that supports that to have their own graphics engine. Non 3D games often don't since it's easier to just be a "window".
Full 3D games generally support any resolution because they might as well... they already need to run in a mode that supports that to have their own graphics engine. Non 3D games often don't since it's easier to just be a "window".