teh really trying to put a metaverse together.
I have no clue why no one else is trying to do this
It costs a lot of money and takes a lot of time to create a fully fleshed and functional life simulation game. Some developers probably didn't see the point, especially with EA having a monopoly on things like the push and pull sliders in character creation and just on the life simulation genre in general. But that grip is loosening now.