I thought of a playerworld that would be like this
It would be quite big, but not that many houses
just a few whit some quests and jobs
Then when you've earned some money
you can build your own house whit furnitures
it will cost diffrently depending on the size of the house
and furnitures will also cost some money
like a bed is 200g.
And when you earn even more you might be able to
open a resturant or some other job that will pay off
more than the basic jobs.
Banks will exist and if someone could script it
you could be able to rob the bank
but if a police finds out who did it you will have
to work in the jail (for money) until you payed of the money
you got whit you and some more as a punishment
end of idee's
Maybe not a good idee but i think it sounds fun :P