Cute game! The art was simple, cohesive, and charming! Difficulty ramped up pretty quickly by year 4, but I'm not an RTS player so it's a skill issue I think. Awesome job!
The dialog advancing sound reminded me of something else, and I was a bit confused when I heard it. I won't clarify here, but those that know will understand haha. That's not to say it was bad, just....familiar haha.