In the late 80s, I typed in a BASIC economy simulator I found in some computer magazine. It ran to two or three closely-typed pages (sides).

As Chancellor of the Exchequer, you set the tax-rate, interest rate, level of public spending and so on; then you ran a cycle. I can't remember whether a cycle was a month or a year. After about three years, the workers would be on strike and there would be rioting in the streets. Every time.

I wasn't particularly interested in macroeconomics at the time; I certainly had no idea how to run an economy. I have no idea how realistic the economic model was. I assume it was just a bit of fun.

But I'd like to tinker with a realistic economic model that is flexible enough to, for example, model Modern Monetary Theory.