Ya know, I just spun up a version of a user-driven exploration game, as an homage to the sf0.org from back in the aughts. https://irl2-production.up.railway.app/
Google auth still not hooked up, but otherwise good enough for now. And it's open source.
I’d play it if payphones from my state were included! I don’t know if they are licensed/registered here though.