I think video games are massively under-studied, particularly in the realm of behavioral Economics.
One of my favorite seminal pieces is Zachary Booth Simpson's paper 1999 paper on the Economics of Ultima Online:
https://mobiledevmemo.com/wp-content/uploads/2021/09/The-In-...
In my own field, I keep finding more and more instances of MMO's and online virtual worlds that reproduce the real-world housing crisis.
https://progressandpoverty.substack.com/p/land-value-tax-in-...