Ok somehow the game thinks your screen is bigger than it is. That's very weird. Do you have a special screen setup of some sort?
Try ALT-ENTER to toggle away from fullscreen and play in a window. How does that work?
Actually I think the problem is that your screen is not 1920x1080 which is currently the minimum supported.
The reason being that there’s a ton of data on screen at once, and a very big map. If I were to support smaller sizes by scaling it, it would not be readable. Sorry about that.
I was under the impression that pretty much everyone used 1920x1080 for gaming these days, but it’s clear that some retro gamers prefer 1366x768 laptops. In order to have a decent experience on those screens I’m going to have to redesign the interface when I find the time.