Q:

Why can't I select any higher resolution?

For some reason I seem to be unable to select any higher resolution when trying to play the game in fullscreen mode.
Despite my screen supporting up to 2560×1440 pixels, the maximum I get is 1280×1024, which isn't even 1080p:

When playing in windowed mode, I'm at least able to pick up to 1920×1200. While this isn't perfect, it's better than playing with a blurry screen.
What's the reason behind this and is there some way to fix it?

A:

So far: No. There's no way to correct this.
The developers are aware of the issue, yet we'll have to wait for a patch to correct this.
In theory, it should be possible to open the file
<Documents>\My Games\Sid Meier's Civilization Beyond Earth\GraphicsSettings.ini

with your favorite text editor and look for the entries WindowResX, WindowResY, Refresh Rate, and FullScreen.
However, it seems like the game has some issue with screens providing refresh rates higher than 60 Hz, which obviously causes it to fail to display or accept only a limited amount of resolution/refresh rate combinations.
The higher the maximum resolution and refresh rate your screen supports, the more likely it is that you won't be able to utilize it right now.
As a temporary workaround, continue playing in windowed mode or connect a screen that won't support anything higher than 60 Hz.

