So my suggestion is to add Adventurers guild.It will be uniqe on all map, it can by in town or prafarably hidden special settlement somewhere in the world, what you must found yourself with special quest.
It will have very rare special contracts, exclusively “rares shop” sometimes will sell even legendary artifacts for insane sums or something.
Maybe it will have auction/black market where you can (for big amounts of money) order something special(and not runing like idiot around the world waiting for rares to spawn in some shop), be it merc with special skills or rare armor/weapon.And your order will be done within a month or alike.
And maybe bank/storage for items.
So idea behind this the place is such where you feel yourself like at home far away from those filthy all the same cities.
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