As someone with very little knowledge of economics, I played with the idea of writing a kind of wealth simulator, where money acts as voltage and keeps the economy running. It would allow you to eliminate jobs and replace them with AI and see how the circuit starves population groups which in turn cascade to other segments of the economy.
I never got to design a good representation of the entire ecosystem to simulate (external pressure, debt, military and technological advancements, international soft power, etc.).