Seems like a solid base for a civ-like. I reached the end of content pretty early on, I feel like it needs a science tree to really shine.
But the foundation is there. Workers do work, soldiers do fight. The imbalance shines almost immideately - you need a worker in a berry bush for any unit that's not working the berry bush. But I think that's just how early this demo is.
Anyway, looking forward to what you're gonna do with this. Keep it up!