Diamond City

Diamond City, also referred to as the "Great Green Jewel," is a fortified settlement in the Fens neighborhood of Boston .Mayor McDonough: "Welcome to the great green jewel of the Commonwealth. Safe. Happy. A fine place to come, spend your money, settle down."(McDonough's dialogue) It was built within Fenway Park, a pre-War baseball stadium.Fallout: The Roleplaying Game Rulebook p.288: "Before the Great War, the area Diamond City was based on was a popular baseball stadium known as Fenway Park, leading to its grounds becoming a location which multiple people flocked to as it provided a great deal of protection from both the elements as well as a symbol of civilization which dissuaded nefarious groups from attacking. As time went on, it developed its own minor economy, and individuals of greater or lesser means stratified themselves in a society which had both prosperous “Upper Stands” and an area known as the “Lower Fields” where the rest of the residents lived."
==Background==
===Pre-War===
Before the Great War, Fenway Park was Boston's baseball stadium, which hosted the Swatting Sultans. On the afternoon of October 23, 2077, Fenway Park would have hosted the seventh game of the 2077 World Series, featuring the Swatting Sultans against a rival team from Texas. If the Sultans won, they would have obtained the first World Series win for Boston since 1918.Newscaster: "And now a look at sports. Something that is, unquestionably, inescapably, American. I am referring of course, to our great national pastime, baseball. This afternoon, right here in the city, Boston's swatting sultans will swing for the fences. Led by star pitcher Matt "The Missile" Murtagh, Boston hopes to defeat Texas, and deliver their first World Series victory since 1918."(Newscaster's dialogue) However, this never came to pass, as the Great War struck on the morning of October 23. Boston's star pitcher Matt Murtagh and two of his teammates, Nathan Broadhurst and Jim Walker, had been warming up in Fenway Park when the war struck, and the stadium's high walls spared them from the initial nuclear devastation.Nathan Broadhurst's autobiogrophy
===Post-War settlement===
In 2130,Fallout Shelter Online description: "Diamond City was transformed from Fenway Park in 2130." the settlement Diamond City was founded within Fenway Park. Its distinctive green color is visible on the tall, reinforced wall, earning the left-field wall nickname the "Green Monster."Fallout 4 loading screens: "Diamond City was constructed in the remains of Boston's world-renowned baseball stadium."
With its own police force, public school, robust agriculture and industry, and a great deal of economic influence across the region, it is by far the most prosperous settlement in the Commonwealth. Diamond City Radio, which can be heard across the Commonwealth, is a symbol of its prosperity and might. Despite this, it is still a shantytown contained within a baseball stadium, showing humanity's struggle for survival in 2287 and the difficulties involved with trying to reclaim the Boston area. As such, Diamond City also doubles as a shelter during the reclamation of Boston.
With the years of pre-War baseball long past, Diamond City was founded in the stadium's stead. The settlement established itself as a safe haven for settlers of the Commonwealth, thanks to what its residents affectionately referred to as "the Wall." Later decades saw Diamond City grow into the Commonwealth's largest and most prosperous community.Fallout 4 loading screens: "Diamond City, the 'Great Green Jewel' of the Commonwealth, is the area's largest and most secure settlement." It developed a degree of social stratification, as wealthier residents came to occupy properties in the settlement's exclusive Upper Stands neighborhood, built in the elevated stadium seating. These overlooked the Lower Fields (the baseball field itself,) where those with less means took up residence.Fallout 4 loading screens: "The Colonial Taphouse is Diamond City's upscale tavern, where the settlement's more wealthy residents drink, socialize, and generally look down on everyone else."
The stadium and its residents have experienced several significant events since the War. In 2180, the Commonwealth Minutemen defended the city from an attacking horde of super mutants, causing the militia's rise to prominence.Fallout 4 loading screens: "The Minutemen first rose to prominence in the year 2180, when they defended Diamond City against a horde of Super Mutant attackers." The Broken Mask incident that occurred fifty years later, in 2229, had a far more lasting impact. A visitor named Mr. Carter suddenly opened fire at a centrally located Diamond City bar, killing several citizens. After Diamond City security took him down, an examination of his remains revealed that he was a synth.Sole Survivor: "How considerate."Roslyn Chambers: "What would you do if your family was destroyed by a synth, right in front of you, when you were but a child? Would you roll over and accept it? Or would you do something about it?"Sole Survivor: "What happened to you?"Roslyn Chambers: "In Diamond City, a lifetime ago, my parents and eight others were massacred by someone. At first we thought the maniac was human. But that was the day we learned of the Institute's latest creations. The synths. As long as the Institute walks invisibly amongst us, they strike without warning and control us from the shadows."(Roslyn Chambers' dialogue) This single incident planted seeds of fear that eventually blossomed into full-scale paranoia about the Institute and its abductions.Fallout 4 loading screens: "In the year 2229, a mysterious visitor to Diamond City killed several people. It was only after he was shot dead by city security that the stranger was revealed to be a synth. The people of the Commonwealth have feared The Institute ever since." Since the event, the fear has only escalated due to regular and unexplained disappearances that have persisted for over half a century.Sole Survivor: "Your husband was taken by the Institute?"Becky Fallon: "Well he ain't here anymore, that's for sure. Not like the Institute leaves a trail besides those damn synths."Sole Survivor: "What do you know about synths?"Becky Fallon: "Just what I read in the papers. That the Institute builds 'em, and some even look human. So much you can't tell the real difference. Lucky me, huh? Institute takes my Charlie, and doesn't even bother replacing him."(Becky Fallon's dialogue)
The city continued to grow despite these troubles, affecting the Commonwealth in many ways. One of its more dubious contributions is Goodneighbor, a settlement founded in 2240 by a group of criminals banished from the city, who quickly turned the new town into a haven for activities frowned upon in Diamond City.Fallout 4 loading screens: "Goodneighbor was founded in the year 2240, by a group of criminals who were banished from Diamond City." In 2272, a new restaurant named Power Noodles was established in the city market, with a Protectron known as Takahashi at the helm. The restaurant rapidly became a staple of Diamond City culture. Piper Wright and her sister Nat also immigrated to the city to found Publick Occurrences, a newspaper dedicated to changing the city for the better. Her activism has galvanized support for fixing the city's problems, such as corruption among the Diamond City security officers, poorly maintained infrastructure, and lack of maintenance on the Wall separating the city from the wasteland.Piper Wright: "Eventually I saved up enough to book us both passage with a caravan and then we moved on up to the big city. Called it home ever since."(Piper's dialogue)Piper Wright: "Crooked guards, lousy infrastructure. Heh. There was a hole in the exterior wall that was patched over with a bookcase. One bookcase. That's it. I started the paper more as an act of desperation than anything else. It turned out, I wasn't the only one who wanted things to change."(Piper's dialogue)
Diamond City fell prey to a surge of anti-ghoul sentiment, fanned by mayoral candidate McDonough and his anti-ghoul Mankind for McDonough platform. He won the election thanks to the votes of the upper stands citizens, and issued the anti-ghoul decree of 2282 in his inaugural speech. The resulting pogrom was carried out by people the ghouls once called their neighbors, and saw entire families thrown out of the city into the surrounding ruins to perish. The ghouls' abandoned belongings were confiscated by the remaining humans, pacifying the poorer residents of the field.The Sole Survivor: "Thanks. You're not so bad yourself."John Hancock: " "The Sole Survivor: "How could they do something like that?"John Hancock: " "The Sole Survivor: "It could have gone worse. At least they left with their lives."John Hancock: " "(Hancock's dialogue)
In 2286, nearly five years later, Pastor Clements lost control over the All Faiths Chapel when it was occupied by the Children of Atom, who opposed the exile of the ghouls. During their brief time in the city, the cult were well-liked among the people of the Lower Fields for their vocal criticism of the Upper Stands residents. They were also supported for opposing the authority of the Minutemen, who were active in the city at this time.Winter of Atom p.102: "The Children of Atom are taking over the All Faiths Chapel, citing that they need a place from which they can help the locals. Pastor Clements strongly opposes their occupation of the chapel. Most Lower Field residents trust the Children of Atom and support their speaking out about the resource hoarding of the Upper Stand residents. Lower Stands locals frequently agree with the Church’s critical view of the Minutemen—who they claim are nothing more than a self-serving militia looking for a foothold in the city." The cult ultimately attacked Diamond City under the leadership of the Last Son of Atom and were subsequently driven out of Boston.
In 2287, McDonough remains in power, posing as the city's defender while secretly ensuring the city does not interfere with the Institute's plans. As an infiltrator, he is very capable in his role, although his cover is starting to fray at the edges.McDonough: ""Sole Survivor: "He's fine."McDonough: " The full details are in my report, along with some other points of interest. "(McDonough's dialogue) Some residents have come to believe McDonough has been replaced by a synth, a suspicion spread by Piper and Nat as part of their investigative journalism.
===Society===
Diamond City is divided between people living on the former baseball field, now known as the Lower Fields, and those residing above in the stadium seating stands, now known as the Upper Stands. The former comprise the city's laborers, craftsmen, farmers, and other workers, while the latter are caravan owners, merchants, and other individuals who control the lion's share of the city's wealth. McDonough exploited this divide and favored the city's elite, who may have wanted the ghouls gone merely to improve their view.
Diamond City is the only settlement in the Commonwealth that guarantees a free education to all children, regardless of their social or financial status.Fallout 4 loading screens: "The Diamond City Schoolhouse offers a free education to all of the settlement's children, regardless of family or social status." It also hosts a non-denominational chapel open to all religious adherents, giving them a quiet, safe space to pray and worship. Power is provided by a fusion generator tower in the heart of the city's market, giving its denizens access to cheap electricity.Fallout 4 Vault Dweller's Survival Guide Collector's Edition p.433-438: "[9.08] DIAMOND CITY MARKETThis is the most well-known, well-defended settlement in the entire Commonwealth. Located in the remains of Boston’s revered baseball stadium, the city houses several businesses and scores of people in divergent social classes. Every resident shares a common bond; they survived under the shadow of the great green wall—that monument to the ingenuity of humankind and their consummate protector.[01] All Faiths ChapelA multidenominational church open 24 hours a day, run by the friendly Pastor Clements. Sit on a pew in the church to gain benefits of the Quiet Reflection perk.[02] Publick OccurrencesThis location is named after the newspaper, which is written, edited, and published by Piper. Her little sister Nat sells copies at the front of their office. She also publishes stories, such as “The Synthetic Truth,” and is currently on the outs with the mayor. Inside the office, you can read her terminal notes and steal some chems and ammo.[04] Fallon’s BasementThis premiere (and only) clothing store sells a variety of prewar attire at the best prices, as well as helpful outfits, like hazmat suits. The proprietor Becky Fallon tells everyone she’s a direct descendant of the original Fallon family. Aside from a large supply of cram, the only item of note is a Holotape you can listen to regarding the Railroad.[05] Power NoodlesThis noodle bar was built up against the fusion generator tower in the center of the settlement, where the pitcher’s mound was. The Protectron chef, Takahashi, has a single phrase—“Nan-ni shimasho-ka?” or “What would you like to have?”—and a single item to trade. Noodles, naturally.[10] Swatters“A swatter never runs out of bullets!” as Moe Cronin is fond of saying. He runs this store specializing in baseball equipment and almost nothing else. Barter with Moe to obtain a unique bat, and speak to him for a couple of quests that can net you some Caps.[13] Chem-I-CareThis is a popular establishment, thanks to the genial owner, Solomon. Selling a complete variety of chems and healing supplies, Solomon may have convinced the populace that the benefits of his wares outweigh the risks. Pick the lock of his house (Novice) for a few more chems to steal inside.[14] Mega SurgeryDespite the corrugated roof, this is a state-of-the-art medical facility offering healing, cybernetic grafts, and even facial reconstruction. Fancy a change in appearance? Sit down under Doctor Sun’s scalpel! There are some other goings on here too; check the listed side quest before descending into the surgery cellar (Advanced).[15] Choice ChopsFresh Brahmin meat is available from the sullen butcher, Polly (who’s a frustrated poet), or Mole Rat meat if you’re feeling adventurous. You can break into Polly’s house (Novice) if you want to hack her terminal (Novice).[18] The WallThe great green wall has protected Diamond City for as long as anyone can remember. Only Abbot spends time here keeping the stage from falling into disrepair, the Brahmins fed, and the wall painted.[22] Science! CenterThe foremost center of scientific experimentation and discovery in Diamond City, run by the enthusiastic Doctor Duff. Her colleague is a little tired of Duff’s prattling. Take a quiz with Duff if you want. Snoop on Scara’s terminal (Master) if you can.[27] Dugout InnThis is the primary watering hole of Diamond City. Many of the residents go here in the evenings to grab a drink. Occasionally, the place has guests who are traveling through the Commonwealth, as there are rooms available (and mattresses to sleep on) for 100 Caps. Though the Russian twins who run this place are identical in their features, their personalities are completely different.[30] Colonial TaphouseThe snobbish denizens of the upper area sip their alcohol from this establishment. Receive a dressing down from Wellington in the exterior seating area, then head inside for a pint and a punch if you’re not careful. Look for the Holotape and a floor safe (Advanced) behind the bar.[32] Codman ResidenceBreak in through the door (Advanced) to the home of the oldest family in Diamond City. The Codmans own the orchard."(Fallout 4 Vault Dweller's Survival Guide Map) The irony of nuclear power first destroying the world and then giving Diamond City its main advantage is not lost on the more scientifically-inclined members of the community.Duff: "Nuclear power destroyed the world, but without it, Diamond City wouldn't have any electricity!"(Duff's dialogue)
Food is provided to the city by independent farms across the Commonwealth, such as Abernathy farm. However, a much larger supplier is the Codman family, who own both the orchard within the walls and the Codman family farms, which provide brahmin meat to Choice Chops.Connie Abernathy's dialogueThe Sole Survivor: "Wait. What kind of meat is this?"Polly: " "(Polly's dialogue)
The community of Diamond City tolerates synths living within as long as they serve the community, allowing Nick Valentine to even run his own public detective agency. Nick gained the residents' respect by saving the daughter of the city's former mayor, Henry Roberts, when she ran away with a caravan trader.The Sole Survivor: "Why'd they let you in?"Nick Valentine: " "(Nick Valentine's dialogue) Despite this and some residents respecting Nick, some other residents are shown to be scornful of synths, not wishing to affiliate with them.
==Layout==
The city is split into social classes, with the rich and powerful residing in the Upper Stands, and the common people, both housed and unhoused, living in the Lower Fields below. The center of the city is the market, which is approached by the main entrance stairs from the southwest. Surrounding the market are four main streets laid out along the old baselines: First Street to the south, Second Street to the east, Third Street to the north, and Home Street to the west. The poorest residents sleep under shelters in the area north of Third Street, where they tend a small number of crops (consisting of mutfruit and tato plants). The northern section of the city beyond these shelters features an outdoor auditorium, a brahmin pen, and a much larger crop field. There is also a small irradiated lake to the east of Second Street, where the city's water is purified and sold by Sheng Kawolski.
Food can be harvested from the small and large crop fields or the greenhouse, or bought from vendors. Purified water can only be obtained from vendors. All standard crafting stations are available for use in the market. A bed may be rented at the Dugout Inn, or permanently obtained by gaining access to either Home Plate or Kellogg's house.
==Buildings==
==Inhabitants==
;Companions
* Nick Valentine
* Piper Wright
;Residents
;Animals
* 2 brahmin
* 27 house cats
* Toro
;Generic
* 20 Diamond City security officers
* 18 unnamed residents²
* 2 Eyebots
* 1 Police Protectron (inactive)
;Former residents
: 
: 
==Notable loot==
* Nine Nuka-Cola Quantums are found throughout the city:
** Two are in Kellogg's house, in the hidden room.
** Two are in the Cooke residence, on the tables on the second floor.
** Two are around Power Noodles, on the counters.
** One is in the Dugout Inn, on the shelves behind the bar.
** One is in Polly's house at Choice Chops, on an end table opposite the entrance.
** One is outside Sheng Kawolski's house, on the metal shelves to the left of the entrance.
* Eight Nuka-Cherrys are found throughout the city:
** Three are in Kellogg's house, in the hidden room.
** Three are in the Dugout Inn, with two on the shelves behind the bar, and the third under the bar.
** One is in Myrna's house at Diamond City Surplus, on a table near the first-floor entrance.
** One is in Doc Crocker's house, on the wooden shelves to the left of the first-floor entrance.
* Three Join the Railroad holotapes are found throughout the city:
** One is in Abbot's house, on the metal shelves opposite the entrance.
** One is in the Dugout Inn, on a nightstand in the bedroom opposite the kitchen.
** One is in Fallon's Basement, on the dresser on the upper platform.
* Gwinnett ale brewing subroutines holotape - In the Colonial Taphouse, on a shelf under the bar.
* RobCo Fun with the Zeta Invaders mini-game holotape - In Valentine Detective Agency, on the desk in the back.
* Live & Love issue #9 - In the schoolhouse, near the beds on the first floor.
* Mini nuke - In Arturo's house at Commonwealth Weaponry, on a table opposite the bed on the first floor.
* Big Boy, a unique Fat Man - Sold by Arturo Rodriguez.
* Old Faithful, a unique laser pistol - Sold by Arturo Rodriguez.
* Protector's armor - Sold by Arturo Rodriguez.
* Rockville Slugger - Sold by Moe Cronin.
* Champion chest piece and right arm - Sold by Becky Fallon.
* Hazmat suit - Often sold by Becky Fallon.
* Wastelander's chest piece - Sold by Myrna or Percy.
* Geneva's ensemble - Worn by Geneva.
* Red leather trench coat and press cap - Both worn by Piper Wright.
==Notes==
* The first time one enters Diamond City, Mayor McDonough will give a speech to a small group of residents where he proclaims "I am NOT a synth," and then praises the Wall.
* After the Sole Survivor finishes the quest Jewel of the Commonwealth, the front gate remains raised. By using a jet pack (or console commands if on PC), one can reach the platform with the crane arms above. There, one can interact with either crane, which will instantly reset the gate to its original position and then slowly raise it again.
* If the Sole Survivor completes the main quest line for a major faction, all the flags in the city will be replaced with the faction's flag, and members of that faction will be wandering the city.
* If the Institute ending is chosen, Gen 1 synths will be found in the market. If the Sole Survivor communicates with them, they state they're in the city to spread the presence of the Institute. Diamond City security will explain that the synths suddenly appeared, but as they weren't causing any trouble, they were allowed to stay. Some synths will be crafting weapons or armor, while others may be browsing the stores in the market. Myrna, who previously seemed to have an aversion to synths, allows them to browse her store, and will no longer comment about hating synths.
* On the in-game dates of Halloween and Christmas, the market is decorated appropriately for the corresponding holiday. On Halloween, the decorations include banners, plastic pumpkins, and paper cutouts of cats, skeletons, and pumpkin men. The Christmas decorations consist of strings of colorful lights and Christmas trees. Furthermore, the Christmas decorations will be displayed from Christmas day through New Year's Eve. However, in order for these decorations to appear, the Sole Survivor must visit Diamond City at least once on Christmas Day; otherwise, the decorations will not appear on any of the subsequent days.
* Four baseball bases around the city are labeled with tally marks as home plate, first base, second base, and third base; Diamond City security will occasionally encourage the Sole Survivor to run the bases, hinting that doing so would be worthwhile. Starting and ending at home plate, running over each of the bases in order will grant the Homerun! trophy/achievement. Also, the city's street names are named after their respective bases, including Home Street.
* There are two wanted posters in the city: one is next to Swatters, and another is just inside the Dugout Inn. Upon reading the posted notices, both assign the same radiant quest tasking the Sole Survivor with killing a raider, ghoul, or super mutant marked on the map at a randomly selected location. Although the notice indicates there is no reward except what is looted from the targets' corpses, some quest completion XP will be granted upon killing the marked enemy. A new bounty will appear on the posters as soon as the current one is complete.
* There is a hidden diner just outside Diamond City; see that location page for details on how to access the area and its contents. Heading west from the diner along the edge of the Diamond City roof leads to the upper section of the entrance gate (near a rubble-filled area with a skeleton, two ammo boxes, and a first aid box). From there, careful jumping or use of a jet pack provides access to one of the large yellow beams holding the main gate in place, which may be activated to close the gate. The gate will not immediately close; the player character will need to first enter an interior cell for the gate to properly close. Once closed, the player character can open the gate from the ground by simply activating it.
* Climbing the partially destroyed building outside the northwest corner of Diamond City and using a jet pack to reach the city roof affords access to a duffle bag and an explosives box to the south. Other minor loot is found on the east side of the city roof accessible by jet pack, including a large toolbox near a skeleton, a cooler, and two stimpaks and a dose of Addictol on a crate.
* Despite ghouls being banned from Diamond City, if Hancock or Billy Peabody, an intelligent child ghoul found during the quest Kid in a Fridge, is taken to the city, they will be allowed inside. Edward Deegan may also be encountered inside the Dugout Inn to initiate the quest Special Delivery.
* Sometimes while waiting in the market, an Assaultron may spawn. While not hostile to the player character, it will attack other characters in the city. It may spawn as a glitch after hacking a robot with the Robotics Expert perk and not shutting it down or destroying it.
* In the Boston Bugle building, a newspaper article on a terminal indicates that on October 23, 2077, the day of the Great War, the team was to play Game 7 of the World Series. The article optimistically predicts that after decades of failure, the team would finally win.
* If one uses a mod to make their power armor jet pack have considerably eased height limits and Action Point drainup, they can surpass the invisible barriers positioned on top of the stadium and explore the surrounding area. The map is crudely textured and non-solid, and reaching a certain distance from Diamond City will transport the player to a pitch black screen where they can only interact with the pause menu.
===Companion comments===
* When at this location, companions make comments.
Location comments	Location comments
Character 	Comment
Cait 	"If we're looking for some action, I'm bettin' we'll find it here."
Codsworth 	""
Curie 	"Are we going to see this baseball game? How exciting!"
Danse 	"It's a shame these people have to live in fear, sheltering in this old stadium when all those perfectly good buildings are still standing outside."
Deacon 	"Diamond City. Watch what you say. If the Institute chose one place to infiltrate - we're walking right into it."
Hancock 	""
Nick Valentine 	""
Piper 	""
Preston Garvey 	"" (entrance)
Preston Garvey 	"" (entrance after killing McDonough)
MacCready 	"Haven't been to Diamond City in years, but I'll tell you... nothing's changed."
Strong 	"Stinks like humans here."
X6-88 	""
==Appearances==
Diamond City appears in Fallout 4, Fallout Shelter Online, and Winter of Atom. It is mentioned in Zoe's diary in the Automatron add-onZoe's diary and by Lizzie Wyath in the Nuka-World add-on.The Sole Survivor: "Wonderful."Lizzie Wyath: " "(Lizzie Wyath's dialogue) It is also mentioned in a question in the Fallout Shelter weekly quest Game Show Gauntlet.
==Behind the scenes==
* Diamond City is modeled on the real-world Fenway Park. For example, the Wall is based on the real-world location of "the Wall" or the "Green Monster," popular nicknames for the 37-foot (11.33-meter) left-field wall at Fenway Park. In the real-world Fenway Park, there is also a large Coca-Cola sign approximately in the same location and style as the Nuka-Cola sign in the game. Likewise, the Mass Fusion billboard mounted on a building behind the Wall mirrors the placement of a large real-world advertisement for the Citgo gasoline company made of neon lights. The real sign was rigged so that it could light up the letters C, IT, and GO in sequence ("See it go") when a home run was hit. Finally, there is a single red seat in the northeast bleachers near the GNN sign, representing the "Lone Red Seat" where Ted Williams hit the farthest ball in Fenway Park history in 1946, 502 feet from home plate.
* Nathan Purkeypile designed much of Diamond City's layout, lighting, and cluttering.Nate Purkeypile on Twitter: "Various settlements I have made on the Fallout series over time. / Also, to clarify, I did the layout, lighting and cluttering. So not just the world art side of things. I enjoy thinking about how a city is laid out and functions. Designers handled the actual NPCs, quests and dialogue."ArtStation - Portfolio, Nathan Purkeypile It was the first location he worked on for the game, as the developers knew from the beginning that they wanted iconic stadium lights, and that the main quest would point towards the stadium as a "beacon" or landmark that could help the player navigate the Boston area.The History of Bethesda Game Studios - Nathan Purkeypile: "That was designed to be that way from the start, like, that was the very first thing I worked on on Fallout 4, was starting out building Fenway. From the beginning, we knew we wanted, like, those stadium lights and... we knew the player was going to have, like, their first quest pointing towards that. So, I always wanted this beacon. I always like to build worlds in a way where you have these landmarks that you can help orient yourself with, too, and that way, you don't have to pull up the map all the time, like 'where the hell am I?'"
** Purkeypile also implemented the seasonal decorations seen in Diamond City, a feature he had in mind since the first designs for Diamond City were created in 2011.Nate Purkeypile on Twitter: "Holidays were already on my list of things to do when I started building the DC back in 2011, heh. It was important. (to me)"
* Atop the press box serving as the mayor's office above the main entrance are five red flags reading "World Series Champions" with the years 1903, 1912, 1915, 1916, and 1918. Banners displaying these years also hang from the stands at intervals on the south and west sides of the stadium. In the Fallout universe, the team never won the World Series again after 1918, and the Curse of the Bambino was never broken. In the real world, the Red Sox finally won the World Series after an 86-year drought in 2004.
* The team's retired numbers in the game, as seen on the bleachers below the Nuka-Cola sign, were 1, 4, 6, 11, 13, 21, and 33. The first three of those numbers are equal to retired numbers of the Boston Red Sox, and belong to Bobby Doerr, Joe Cronin and Johnny Pesky, respectively. Diamond City resident Moe Cronin also shares his last name with Joe Cronin.
* At one point in development, Diamond City was intended to have an additional business, "Safe at Home Hotel and Bar". The business appears on an early placeholder texture for the city's signs, and proper texture for the business's signage can be found in the game's texture archives.
* Among the game's texture files for Diamond City is a cropped image of the real-world Fenway Park and its surroundings from a satellite mapping service, labelled as "TestLayout01". This image is likely a leftover from very early development, when the layout of Diamond City was still being determined.
* The cell for Diamond City still exists in the files of Fallout 76, but it is empty.
==Bugs==
* Sometimes, when using the exterior lift from the mayor's office, then activating the second button before the elevator reaches the bottom, the guard rail will extend as if the player were to disembark, then retract upon arrival as if the player is still riding the elevator. Activating the elevator and leaving Diamond City, or entering a building before the elevator stops moving and reloading the game, may fix this. 
* Sometimes, when using the elevator to the mayor's office with a companion, the companion may be transported to the green trash can at the base of the main entrance stairs in Diamond City, and become stuck there. Walking outside of Diamond City to the Fens (manually, without fast-travel) will sometimes free the companion in this situation. Using the console command after selecting the companion's refID can also rectify this issue. 
* Any items placed in the mailboxes, including the one in front of the Sole Survivor's Home Plate residence, will be displayed as owned. Stealing will then be the only way to access the items. 
* After completing the quest Unlikely Valentine, two Triggermen may spawn in Diamond City each time you travel to the city. Most of the civilians in Diamond City will attack the mobsters. There is currently no fix for this issue. 
==Gallery==
FO4 DC Exterior 6.jpg|Exterior
DiamondCityEntrance.png|Exterior
DiamondCity Approach.png|Exterior
FO4 DC Exterior 4.jpg|Exterior
FO4 DC Exterior 1.jpg|Exterior sign
FO4 RR wall art (2).jpg|Exterior sign
FO4 DC Exterior 5.jpg|Exterior sign
FO4 DC Exterior 2.jpg|Exterior security
FO4 DC Exterior 3.jpg|Exterior security
FO4 Diamond City Close Gate Secret.jpg|Main gate beam from above (left); main gate closed (right)
DiamondCityMayor-Fallout4.jpg|Mayor's office
FO4 Diamond City Geneva's desk.png|Mayor's office
FO4 Diamond City Mayors office overlook.jpg|Mayor's office view
FO4 DC Infield 7.jpg|Entrance stairs
DiamondCityStands-Fallout4.jpg|Upper stands
FO4 DC Infield 1.jpg|First Street
FO4 D City signs 2.png|Second Street
FO4 D City signs 3.png|Third Street
DiamondCityStreet-Fallout4.jpg|Third Street
Fo4 D City signs home.png|Home Street
FO4 DC Infield 2.jpg|Home Street
FO4 DC Infield 5.jpg|Home Street
Fo4 D city base 1.png|First base
Fo4 D city base 2.png|Second base
Fo4 D city base 3.png|Third base
FO4 DC Infield 6.jpg|Third base
FO4 D City bases home 2.jpg|Home plate
FO4 D City bases home.jpg|Home plate
Fo4 DiamondCity Inside.png|Street scene
DiamondCityMain.png|Market by day
DiamondCity AtNight.png|Market by night
Diamond City Christmas style FO4.png|Market with Christmas décor
Diamond City Halloween style FO4.png|Market with Halloween décor
Diamond City market centre Halloween style FO4.png|Market with Halloween décor
Diamond City GroundView.png|Power Noodles
FO4 DC Infield 3.jpg|Swatters sign
FO4 DC Infield 4.jpg|Moe Cronin
DiamondCityStage-Fallout4.jpg|Northern area
FO4 DC Outfield 2.jpg|Northern area
FO4 DC Outfield 3.jpg|Northern area
FO4 DC Outfield 1.jpg|The Wall
FO4 DC Boston logo.jpg|Boston logo
FO4 DC Left field foul pole.jpg|Left-field foul pole
FO4 DC Right field foul pole.jpg|Right-field foul pole
FO4_red_seat.jpg|"Lone Red Seat"
FO4 DC Outfield numbers.jpg|Retired numbers
FO4 DC Banner 2.jpg|1903 banner
FO4 DC Banner 1.jpg|1912 banner
FO4 DC Banner 3.jpg|1915 banner
FO4 DC Banner 4.jpg|1916 banner
DiamondCity-Diner-Fallout4.jpg|Hidden diner
FO4 Street sign Ivy Leag bridge.png|Street sign
Armor workbench east of Diamond City.jpg|Armor workbench
BaseballBases01.png|Base texture file
Safe At Home Signage.png|Cut signage textures for the "Safe at Home Hotel and Bar"
FOSO Diamond City.png|Diamond City visitable in chapter 4 of Fallout Shelter Online
===Concept art===
Art of Fallout 4 Diamond City.png|From E3 2015 and The Art of Fallout 4
FO4 E3 Diamond city Concept.png
Diamond City panorama.png
Fo4-diamond-city-concept.png
Diamond City concept art.png
Diamond City color studies.png
Diamond City outside.png
Fo4-diamond-city-concept2.png
FO4 Art book D City alley.png
Diamond City TestLayout01.png|Development leftover from the game's texture archives, labelled "TestLayout01"; likely used as a reference for developing the city's layout.
==References==
Non-game
Fallout: The Roleplaying Game
 
de:Diamond City
es:Diamond City
fr:Diamond City
hu:Gyémántváros
it:Diamond City
ja:Diamond City
ko:다이아몬드 시티
pl:Diamond City
pt:Diamond City
ru:Даймонд-сити
uk:Даймонд-сіті
zh:鑽石城