The graphical version has visual maps, background images for each region (forest, mountains, etc.), and limitations on how many options can be shown at once (it uses MORE OPTIONS and PREVIOUS OPTIONS buttons to cycle through all the options if there are more than six at a time). There may be some other differences I’m forgetting. The command line version plays kind of like a 1980s text adventure game, but has numbered options like in Warsim: The Realm of Aslona.
Yes, the final game will have a command line version! I’m not using Unity; Upheaval is made with MonoGame. If you know of any similar tools for MonoGame, I’d love to hear about them!