Oh, hell! General, are you seeing this thing? Everybody, concentrate your fire on the queen!

— Preston Garvey

Taking Independence is a Minutemen main quest and achievement/trophy in Fallout 4.

Quick walkthroughEdit

Minutemen main quest: Taking Independence
Talk to Preston Garvey.
Meet Preston near the Castle.
Decide on a plan of attack.
Kill the mirelurks.
Destroy the nests.
Kill the mirelurk queen.
Power the transmitter.
Report back to Preston Garvey.
Reward: 350+ XP
The Castle as a settlement
Leads to: Old Guns

Detailed walkthroughEdit

Once you have established approximately four settlements, including Sanctuary Hills, for the Minutemen, talk to Preston Garvey. He'll tell you about the Castle, the former headquarters of the Minutemen, and discuss his desire to retake the building to show that the Minutemen are back. Offer to help, and he'll tell you to meet him outside the Castle.

If attempting this quest at a lower level, it is strongly recommended that you bring power armor and at least one heavy weapon. It may also be worthwhile to bring the parts for two medium power generators.

The hike to the Castle will take you through South Boston and past a number of both raiders and super mutants in equal measure. Garvey is waiting for you in a destroyed Sullivan's west of the Castle with three other Minutemen. Proceeding to the Castle before meeting Garvey will likely prove challenging to lower-level characters, as it is crawling with mirelurks and has some nasty surprises in wait. Additionally, the Sullivan's has a bunch of equipment on the counter that may be useful--including land mines.

Talk to Garvey, and he'll discuss your options. The three Minutemen will offer various potential plans of attack: a direct assault into the courtyard via the breached northwest wall, a pincer through the breach and the main gate to the south, or setting up a firing line outside the northwest breach and drawing the lurks out to your guns. Pick whichever suits your preference, and then wait for the Minutemen to move into position. When all's in order, launch the attack.

There are about ten mirelurks of varying strength inside the Castle. Aim for their soft undersides, as chipping away at their shells is a sure way to just irritate them and get yourself clawed. Once they're all dead, Garvey and the Minutemen will observe the egg clutches laying around--if they're not cleared out the mirelurks will keep coming back.

Approaching the egg clutches will cause several of them to hatch mirelurk hatchlings. Either handle them as they come or take out the clutches from a distance with explosives--this will deny you those tasty mirelurk eggs, however, which make a fantastic omelette among other things.

It is strongly recommended that before you begin clearing them out in earnest, you lay some mines on the breach in the southwest wall--not the one you came in on, the other almost-destroyed one. If you don't have a heavy weapon, head to the easternmost room in the fort--there's a missile launcher and some ammo on a table in there. There's also a flamer kicking around, but Preston is likely to requisition that.

The reason for all this will quickly become obvious. After you've destroyed a few clutches, the entire Castle will shake, and a Mirelurk Queen will emerge from the lagoon--the "sea monster" that destroyed the Castle in the past. She'll make her way through the southwest breach and into the Castle courtyard, at which point she'll start killing anything she can reach--Preston and one of the Minutemen are essential, but two of them aren't. Try to keep a moderate distance--too close and she'll tear you to shreds, but too far and she'll spit acid at you with serious effectiveness. She is not to be underestimated, but keep up the fire and keep her attention away from your squishy allies, and she'll go down.

Once the Queen is dead, clear out the remainder of the egg clutches. After they're all gone Preston will tell you about Radio Freedom, and task you with getting it up and running. This requires ten power all on its lonesome--either one large or two medium generators will do the trick. Once Radio Freedom is powered, talk to Preston again to complete the quest.

Quest stagesEdit

StageStatusDescriptionLog Entry
20 Talk to Preston GarveyPreston Garvey thinks it's time for the Minutemen to retake "The Castle", an old fort that used to be their main base of operations.
45 Bypass Castle Seige - if hostiles already cleared from CastlePreston Garvey was glad to hear that the Castle was already cleared of enemies. He's going to meet me there with a garrison of Minutemen.
50 Meet Preston near the CastlePreston Garvey thinks it's time for the Minutemen to retake "The Castle", an old fort that used to be their main base of operations. I've agreed to meet him there so we can plan our attack.
70 Talk to Preston if Bypassedlog4?
80 Talk to Preston to agree on plan of attackI've met Preston Garvey and a group of Minutemen near the Castle. We need needIn-game spelling, punctuation and/or grammarIcon sic to agree on a plan of attack.
100 Get in positionPreston Garvey and the Minutemen are forming up to attack the Castle on my signal.
200 Attack startedPreston Garvey and the Minutemen are attacking the Castle. Our first objective is to clear the Mirelurks from the fort's courtyard.
260 Clear eggsWe've eliminated the Mirelurks from the Castle courtyard. The next step is to find and destroy their eggs before they can hatch.
300 Queen start
305 Reveal queen - Objective kill queenWhile we were clearing the Mirelurk eggs from the Castle, we seem to have attracted the angry attention of a huge Mirelurk Queen.
400 Queen dead, finish clearing courtyardWe managed to kill the Mirelurk Queen. Now to finish the job of clearing the Mirelurks from the Castle.
500 Battle doneWe've finished clearing out the Mirelurks. The Castle is back under the control of the Minutemen.
570 Power the transmitterThe Castle is back under our control. The next step is to get the old radio transmitter powered up.
600 Talk to Preston GarveyThe Castle is back under out control, and Radio Freedom can now broadcast across the whole Commonwealth.
1000Quest finishedIcon checkQuest complete


  • Any Minutemen that survive the battle will remain at the Castle after the quest is complete as part of the settlement population. One of the Minutemen is an essential character and cannot die, he will operate the radio once the Castle becomes a settlement. The other two Minutemen are not essential characters and can die during the quest, however, if they are alive, they will help clear out the remaining eggs if not yet cleared.
  • The Castle comes pre-built with an intricate electrical system and an industrial-grade water purifier. This requires significant power to run but cranks out forty clean water resources, enough for two full-size settlements all on its own. Initial building may be hampered by the sludge and debris left by the mirelurks, but simply traveling away and coming back will clear that out.
  • If you dismiss Preston as a follower after he makes the quest available, you will not be able to recruit him again until taking the Castle. When you try to talk to him, he will ask if you are ready to take the Castle and will not offer the option for him to follow you.
    • This can be very useful; since Preston is recruitable and will wait at the castle, you can bring along another companion for extra fire support against the mirelurks.
  • If you already cleared the Castle, the quest will still be available, however, the mirelurk fight will be bypassed, and you will be asked to power the radio transmitter, or clear out the eggs, if not done already.

Behind the scenesEdit

50 Vault-Tec C.E.O.The following is based on unverified behind the scenes information and has not been confirmed by canon sources.
  • This quest's name is a reference to the original name of the location, Fort Independence.
  • The presence of mirelurks at the Castle may be an allusion to the lobsterbacks - a slang term for the Redcoat infantry that the Minutemen fought during the American Revolutionary War. This could also be supported by the presence of a mirelurk queen, symbolizing the British monarch.
50 Vault-Tec C.E.O.End of information based on unverified behind the scenes information.


  • pcIcon pc xboxoneIcon xboxone ps4Icon ps4 After defeating the mirelurk queen, Preston may glitch into a wall that you cannot enter. In order to fix this you have to reload before the glitch happens.[verified]
  • pcIcon pc xboxoneIcon xboxone After defeating the mirelurk queen, the marker to meet in the courtyard will appear at a far distance. The path there is very treacherous as it contains synths, raiders, super mutants, mirelurks and deathclaws on most paths there. To fix this fast travel to a few different places and it will automatically fix itself.[verified]
  • pcIcon pc If you encounter the glitch, where you are required to clear out the remaining egg nests after killing the mirelurk queen, some of the random loot around the fort will have disappeared permanently. Also, a legendary mirelurk that sometimes spawns in one of the fort's rooms may vanish, too.[verified]
  • pcIcon pc xboxoneIcon xboxone After defeating the queen and clearing out the Fort, Preston Garvey may sit on the wall doing nothing with no speech options. Preston may also walk all the way back to Sanctuary and will continuously say "We need to focus on taking the Castle back". This may be solved by sitting on the chair and wait for 24 hours. [verified]
  • pcIcon pc ps4Icon ps4 The queen may not spawn after killing the mirelurks as she is stuck under the floor. Loading a previous savegame and re-entering the room may solve this issue.[verified]
  • pcIcon pc ps4Icon ps4 xboxoneIcon xboxone After killing the mirelurk queen you may be unable to build more than one generator of each type, even if you have the necessary parts.[verified]
  • xboxoneIcon xboxone When you build the generators, of any size, you are unable to build them in the courtyard, or on top of the walls. Reloading a save before you build the generators should fix this issue.[verified]
  • pcIcon pc If you leave the castle during this quest, it will be unable to be completed. [verified]
  • pcIcon pc Sometimes Preston won't give you the quest even if you meet requirements (even if you capture the castle before). To solve this, just send him away to Sanctuary and meet him there, he will start talking about the Castle. [verified]
  • pcIcon pc Sometimes even after killing all enemies within the Castle, you wont be able to activate the workshop because "You need to clear out the enemies at this location".
  • pcIcon pc You can use the Setstage command to finish the quest, but the castle will remain unbuildable. [verification overdue]
  • pcIcon pc Sometimes the transmitter is impossible to power up. [verification overdue]