Fallout 4 Walkthrough Episode 4: The Castle, Mirelurk Queen & Goodneighbor

Securing Settlements, Exploring Goodneighbor, and Assaulting The Castle in Episode 4

Watch Fallout 4 Gameplay Walkthrough Episode 4: Securing Settlements, Exploring Goodneighbor, and Assaulting The Castle | 4K 60FPS PC Ultra Graphics

Our Fallout 4 walkthrough continues with a heavy focus on rebuilding the Commonwealth, starting this episode off by clearing out the raider-infested Beantown Brewery. With that location secured, we answered a distress call from the struggling farmers at Oberland Station, who desperately needed our help dealing with a violent gang operating out of Back Street Apparel.

Navigating the tight, ruined corridors of the apparel shop made for a fantastic close-quarters firefight, allowing us to eliminate the raider threat and safely loot the premises. Returning to Oberland Station with the good news, the grateful settlers officially agreed to join the Minutemen, expanding our network before we headed back to Sanctuary to get our next set of orders from Preston Garvey.

fallout 4 raiders

Expanding the Minutemen to Sunshine Tidings Co-op

Preston didn’t let us rest for long, immediately dispatching us westward to secure a large, abandoned farming settlement known as Sunshine Tidings Co-op. This sprawling location was completely overrun by feral ghouls, requiring us to sweep through every single dilapidated cabin and storage shed to make the area safe for human habitation.

Once the ghoul threat was neutralized, I cracked open the workshop menu to build and activate a radio recruitment beacon, sending out a broadcast to attract wandering wastelanders to our newly secured haven. After making sure the settlement had the basic foundations to thrive, it was time to report back to Preston for yet another vital Minutemen assignment.

  • Lore Fact: Before the Great War, Sunshine Tidings Co-op was a farming commune established by a group of hippies and free spirits, which explains the rustic cabins and the presence of a uniquely programmed, incredibly laid-back Mr. Handy robot named Professor Goodfeels.

fallout 4 sunshine tidings co-op

Crashing the Robot Races at Easy City Downs

Our next mission sent us all the way to the eastern coastline to assist the settlers at Nordhagen Beach, fighting through scattered groups of scavengers and raiders along the way. The settlers pointed us toward Easy City Downs, a pre-war racetrack that had been taken over by the Triggermen and raiders who were illegally gambling on reprogrammed racing robots.

Charging into the racetrack was pure chaos, forcing us to battle both heavily armed thugs and aggressive assaultrons like the infamous Iron Maiden. After finally cornering and eliminating the ringleader, Eager Ernie, we disabled the remaining bots, cleared the track, and returned to Nordhagen Beach to officially welcome them into the Minutemen fold.

fallout 4 easy city downs

Cultists and Corporate Ruins at the Mass Fusion Building

With our ranks growing, Preston finally gave the order to retake the historic Minutemen headquarters, but the journey to the coastline was packed with unexpected detours. Along the way, I bumped into Brother Simon at the Charles River Amphitheater, the leader of a scam cult called the “Pillars of the Community,” whose sketchy invitation I promptly and aggressively refused.

Pushing further into the dense urban ruins of downtown Boston, I stumbled upon the towering Mass Fusion Building, deciding to clear out the interior lobby and lower levels for some highly valuable mid-game loot and experience. Surviving the intense vertical firefights against the gunners inside gave me a massive boost in supplies before continuing my march.

  • Lore Fact: The Mass Fusion corporation was the leading provider of nuclear power in the Commonwealth prior to the war, but behind closed doors, they were secretly conducting illegal beryllium research and severely cutting corners on radioactive waste disposal to maintain their absolute energy monopoly.

A Well-Timed Pit Stop in Goodneighbor

Because my inventory was overflowing with salvaged weapons and armor from Mass Fusion, I took a quick detour into the neon-lit alleyways of Goodneighbor to unload my gear. Stepping through the gates of this infamous drifter settlement triggers a fantastic cinematic moment where Mayor Hancock, a ruthless but fair ghoul, swiftly deals with a local extortionist named Finn to welcome us to his town. Goodneighbor is a crucial hub in any Fallout 4 gameplay guide, offering unique vendors like KL-E-0 and Daisy, as well as a safe place to rest and craft. After restocking my ammunition, selling off my excess junk, and healing up, I stepped back out into the perilous Boston streets to finish my trek to the coastline.

fallout 4 goodneighbor

Defeating the Mirelurk Queen and Taking Independence

The episode reaches its epic climax as we finally arrive at the ruins of The Castle, meeting up with Preston and a squad of Minutemen to initiate the “Taking Independence” quest. We launched a coordinated assault to clear the courtyard and the towering star fort walls of standard Mirelurks, but the real challenge emerged from the sea: a colossal, terrifying Mirelurk Queen.

Dodging her highly toxic acid spit and battling through a horde of legendary hatchlings was one of the toughest boss fights yet, requiring every single explosive and stimpak in my inventory to survive. With the Queen finally defeated, we powered up the central radio transmitter, officially broadcasting the Minutemen’s return across the Commonwealth and ending the episode on an incredibly high note!

  • Lore Fact: The Castle is actually Fort Independence, a real-world star fort situated on Castle Island in South Boston. In the Fallout universe, it served as the impenetrable headquarters and central armory for the Minutemen until a massive, sudden Mirelurk invasion decimated their leadership decades before the game begins.