It adds a new type of treasure map, named ‘Pirate Treasure Map’, that is labeled with a location that refers to a specific Base Game or Island Living neighborhood. If you travel to that neighborhood, then click on the appropriate Pirate Treasure Map, your Sim will search for and find a dirt pile to dig up and find a Pirate Treasure chest. Opening the chest will give your Sim three Sulani treasure items, as well other potential bonuses if they have the Collector or Treasure Hunter trait.
The Sims 4 Pirate Treasure Mod
You can find a pirate treasure map by beachcombing, digging up random dirt or sand piles (in any region), diving for treasure in the ocean in Sulani (you can also find a sunken treasure chest this way), or by exploring the cave near Mua Pel’am in Sulani. Also, pirate treasure chests that you find and open may have another pirate treasure map inside them. You can also buy the maps in build/buy mode.
Credit : Simsonian Library