I played the game for awhile and noticed that a person can become pretty much self reliant because there's no limit to skills and resources can be found almost anywhere. This means players have almost no reason to venture outside their home area. I propose 2 ideas that could help with that.
1. Give certain parts of the map special types of resources.(As in only certain kinds of plants can grow there and maybe ores.)Or make it so the map has certain types of regions that can give bonuses to various things. Like have it so farming and plants growing faster. Ores and mines are more plentiful in other areas. Things like that.
The above can be achieved maybe by giving the map a longitude, latitude system.
2. Trade caravans would be a good way to carry all this stuff between the town people will create. You could make it so someone has to make a wagon and hitch an animal to it. If you made it so players could build something like a trading post you make them act like way points so caravans get there on their own. Of course that makes them susceptible to players who find robbery fun. So players might still want to accompany the wagons. Unless you made it so players couldn't attack the wagons.
Well that's my idea for today. Hope you like it