It’s not just the Commonwealth that’s teeming with secrets. Beyond the fog lies Far Harbor—a rugged, rain-drenched island shrouded in radiation and paranoia. As Fallout 4’s largest DLC, Far Harbor offers a gripping mix of detective work, coastal horror, and morally grey choices. But before you set foot on that haunted shoreline, you need to know how to start the DLC—and what to expect once you get there.

This full guide covers how to begin Far Harbor , plus tips on companions, major decisions, key quests, and multiple endings.

Before launching into Far Harbor, make sure you’ve done the following:

• Install the Far Harbor DLC – Available through the Fallout 4 Season Pass or as a standalone purchase.

• Reach Level 15+ – Technically, you can start earlier, but tougher enemies and radiation make higher levels smarter.

• Complete the Quest: “Getting a Clue” – This is part of the main story. It unlocks Nick Valentine and his detective agency.

Once the above conditions are met, follow these steps:

1. Travel to Diamond City – Visit Nick Valentine’s detective agency.

2. Receive the New Case File – A woman named Kasumi Nakano is missing.

3. Listen to the Radio Transmission – "Valentine’s Detective Agency Case File".

4. Begin the Quest: “Far From Home” – This quest officially kicks off the DLC.

5. Head to the Nakano Residence – Located in the far northeast corner of the map.

6. Speak with Mr. and Mrs. Nakano – Accept their request to find Kasumi.

7. Set Sail for Far Harbor – Use their boat to travel to the island and begin your new adventure.

• Three Factions: The synths of Acadia, the fanatical Children of Atom, and the desperate residents of Far Harbor.

• Dense Fog and Radiation: Many enemies are mutated fog creatures. Carry RadAway and power armor.

• Moral Choices: Peace, betrayal, and destruction are all possible.

• New Gear: Marine armor, Harpoon Gun, Lever-Action Rifle, and powerful new legendary items.

These quests form the spine of the Far Harbor narrative. Your actions determine the ending.

• DiMA – Synth leader of Acadia with a hidden agenda.

• Kasumi Nakano – The girl you’re sent to find; believes she may be a synth.

• Captain Avery – Far Harbor’s voice of reason.

• Tektus – Zealot leader of the Children of Atom.

• Old Longfellow – Grizzled island guide and potential companion.

• Nick Valentine – Tied deeply to the questline and Acadia’s past.

• Old Longfellow – Offers insight into local politics and secret locations.

• Strong or Dogmeat – Good for brute force against island monstrosities.

Bring companions who don't mind grey morality if you're planning to make hard decisions.

• The Nucleus – Headquarters of the Children of Atom.

• Acadia – A synth refuge hidden in the mountains.

• Far Harbor – A seaside town under siege by monsters and fog.

• Echo Lake Lumber – Great for settlement building.

• Vault 118 – A secret vault beneath a cliffside resort.

You can end the DLC in a few major ways:

1. Peace: All factions survive. DiMA’s secrets are revealed but forgiven.

2. Destroy the Children of Atom: Use a launch key to wipe out their base.

3. Destroy Acadia: Frame DiMA and turn the Harbor folk against synths.

4. Destroy Far Harbor: Side with Atom and eliminate the town.

Each ending leads to different dialogue, loot, and consequences. You can also convince DiMA to turn himself in.

• Bring Power Armor: The radiation gets brutal.

• Stock RadAway and Rad-X: Essential for surviving in the fog.

• Save Before Each Major Choice: The DLC has multiple branching outcomes.

• Use Longfellow’s Cabin as a Base: You can build and store loot there.

Far Harbor is more than a side story—it’s a full-blown mystery-thriller wrapped in mist and moral tension. Whether you broker peace or pull the trigger, your path is yours to walk. Just don’t trust the fog.

Pack your Geiger counter and make your choices count.