You already got a Tomo essay so i will try to keep it short.
I think i've seen progress posts where the focus was to make the tiling with textures, elevation etc. and it feels like its a solid foundation to build upon. In general things work as expected from a civlike, which is always a good thing, given there is no tutorial.
Friendly fire between your own units was already mentioned, happened to me too. There was no feedback on why i couldnt build more units after i made a few. I guess it was the food but in the future you will surely implement some cost tooltips, messaging to why some action is impossible and so on.
One thing i didnt see in the other comments was the fact that zooming didnt seem to be constrained. So if you zoom in long enough you will be under the terrain and the positioning of everything gets inverted. 
In this screenshot the injured soldier was actually above my soldier as an example.
Anyway this is probably a very early build and as such it didnt have any crashes or breaking bugs for me. Keep devving, i'd like to make a 4x game some day myself so im interested in what you will come up with here.