No surprise for what at least at the start was a two-person studio in the case of Nepos Games (Nebuchadnezzar), there’s been some dev-blogs but promotion could be better. We all know that a lot of ‘indie’ studios can be a bit hit or miss when it comes to the marketing side of things. And so far all testing has been behind closed doors, so people haven’t been able to share much publicly yet.
I know a few city-builder focused channels that are keen to investigate any and all city-builder-esque games though, so there should be gameplay videos closer to the release date.