Very solidly put together; I can easily see this as the basis for a commercial product.
In terms of actual feedback: As I'm sure you know, it's very easy to fill all the build locations very early on, which makes the rest of the player's game very reactive; I would suggest that you need some other pathways for growth that open up later (perhaps through technology) to give the late-game player something more to do than maintenance.
It wasn't always easy for me to tell (or, I suppose, remember) that the game was paused; since events pause the game when they pop up and don't unpause when they're dismissed I spent a lot of time accidentally paused, waiting for changes that weren't going to happen. Since it seems like most of the event decisions don't really require much in the way of follow-up, perhaps they could return you to your previous play speed automatically?
Overall this is a very strong entry; great work, and I hope it's recognised as such in the jam!