A little thing but annoying non the less: when I have a ranged unit on alert in a city or encampment it will often be woke up by an enemy unit still out of range. When that happens the alert button is greyed out and there is no skip turn button. Can only move, which I generally don't want, or put it on fortify, which means it won't prompt for an action next turn. So I have to remember there is an enemy near that city next turn, which can be tricky in large empires when there is a war going on. I really don't understand why the skip turn button is not available at all times. Edit: and why doesn't the game alert me to enemies in my territory like in civ 5?! Or, while we're at it, when my cities are getting converted?!