Megaton is a fictional settlement in the 2008 action role-playing game Fallout 3, created as part of the Fallout franchise by Bethesda Game Studios. It is one of the first locations that the player-controlled Lone Wanderer may encounter upon leaving the Vault 101 fallout shelter. Megaton's exterior is a cone-shaped structure with an automatic gate to protect its residents. The town is run by Lucas Simms, a mayor and sheriff who will ask the player character to help deactivate a dud nuclear warhead at the settlement's center; the player can instead choose to detonate it at the request of Allistair Tenpenny of Tenpenny Tower. The interior of Megaton is a crater with winding pathways and wooden sheds held by girders that surround the bomb, which became a center of worship for a religious faction called the Church of the Children of the Atom. Although the main quest of the game is finding their father, early on by asking Megaton's residents for clues, they can trade with local vendors and perform side quests like helping out a mechanic and vendor named Moira Brown in writing the Wasteland Survival Guide by performing various tasks at the outside world.

In the game's lore, the crater served as both a trading post and a shelter for people who needed protection from sandstorms and failed to seek refuge from Vault 101. Megaton was founded by multiple people who constructed it from the wealth they accumulated during trade and sought to build a fortified structure around the bomb for protection from hostile groups. Megaton, as the developers of Fallout 3 discussed, emphasized "quality over quantity" of non-player characters by focusing on meaningful interactions from them and limiting the quantity of them to fit the desolate wasteland setting. The localized Japanese version removed the player's ability to detonate the Megaton bomb in light of cultural sensitivities over the atomic bombings of Hiroshima and Nagasaki in Japan.

Megaton has been positively received by critics who argued that it was one of the best and most memorable locations in the Fallout series given its early game presence as well as its perceived liveliness and usefulness. While contemporary reviewers praised Megaton as an example of Fallout 3s gameplay flexibility, many retrospective sources emphasized it as one of the best and most iconic video game locations in the context of how well it fit into the philosophies of open-world gameplay design and narrative variability. Writers highlighted Moira Brown as a standout character within the settlement due to her quirky but friendly personality, her professions' usefulness, and the quests involving her guidebook. The side quest around detonating or defusing the bomb has also been described by critics as showcasing the large-scale consequences that the player character and others are exposed, with many expressing guilt for detonating the warhead and thus destroying the settlement. Academic analyses on Megaton focused on moral incentives and in-game rewards for either detonating or defusing the warhead. The bomb has also been analyzed within the wider contexts of religion and similarities to cultural works like Beneath the Planet of the Apes.

Description

Megaton, a fictional town located just south of the ruins of Springvale, Virginia, is a relatively large-sized settlement area within the Capital Wasteland in the 2008 action role-playing game Fallout 3, developed by Bethesda Game Studios as part of the Fallout franchise. In 2277—200 years after the United States was obliterated by a nuclear war in an alternate world history—the player character, called "Lone Wanderer" in the game, exits Vault 101 in search of their father James who fled the fallout shelter to resume a water purification project to provide radiation-free water for the area's residents. After exiting the vault, the protagonist finds Megaton while exploring. The exterior is a conical structure on a small hill surrounded by arches pointing upward towards the sky, serving as a gate. The gate is guarded by a robot that greets human visitors while protecting the area from creatures like giant ants. Once near the structure, the bulky metal sheets will automatically lift to allow entry. As opposed to the exterior cone-like shape, the interior is shaped like a large hole. Upon first entry into Megaton, Lucas Simms (a non-player character like the town's other residents), its mayor and sheriff, greets the player to ensure they do not intend to cause trouble. He also asks the player whether they could disarm a live bomb in the middle of the town. The name Megaton is derived from the undetonated bomb that Lucas asks them to defuse. Prior to the settlement's founding, wasteland survivors used the crater as a shelter to avoid sandstorms after being rejected from refuge in Vault 101. Some began to worship the bomb there, forming the Children of Atom religion. The crater eventually became a significant trading post. Several traders used their earnings to building walls around the crater to protect themselves from hostile groups like raiders and super mutants, which attracted more residents.

The town's structure is made of irregular pathways and a cluster of wooden sheds held up by girders where residents live in that surrounds a crater with a dropped atomic bomb that failed to detonate. The Church of the Children of Atom, a religious organization led by Confessor Cromwell, worships the bomb as well as a monotheistic god and personification of atomic power named Atom. Cromwell loudly preaches at the bomb site to his praying followers and baptizes himself with the nearby irradiated water. The buildings accessible to the player include townhouses, two pubs, a waterworks, a church, a hostel, an armory, a shop, and bathrooms. The Lone Wanderer can visit Colin Moriarty at his saloon to gain information regarding James' whereabouts; Moriarty redirects the player towards visiting Three Dog of Galaxy News Radio for clues. The player can interact with Manya Vargas, an elderly granddaughter of one of Megaton's founders, to hear about the settlement's history.

Vendors also reside in Megaton with whom the Lone Wanderer can exchange collected items for bottle cap-based currency. The player can pursue side quests given by the town's residents. For instance, the player character can help fix pipes for the handyman Walter at the area's water processing plant. One of the most prominent quest-givers in Megaton is Moira Brown, a quirky and cheerful vendor and mechanic who runs the Craterside Supply. She asks the protagonist to help her write a guidebook called Wasteland Survival Guide. To complete her book, Moira tasks the player with performing dangerous activities outside the town. Many of the tasks involve exploration far from Megaton and require encounters with hostiles like raiders and irradiated creatures; examples include scavenging for food and medicine or exposure to heavy amounts of radiation. Moira's quests effectively act as a "secondary tutorial" for the player that help understand game mechanics not taught during earlier game sequences in Vault 101.

The nuclear warhead at the middle of Megaton is the focus of a side quest potentially given by Lucas that the player can address. After successfully defusing it, Lucas will reward them with caps, a slight karma stat boost, and a residence within Megaton; the house can be upgraded by Moira to the player's liking and comes with a robot butler who can provide purified water and restyle the player character's hair. Alternatively, the Lone Wanderer can visit Moriarty's Saloon to talk to Mr. Burke, an employee of Allistair Tenpenny. Burke and his employer want Megaton wiped out via the warhead's detonation because they dislike seeing it from the faraway Tenpenny Tower, where they reside. If the player agrees to blow up Megaton, Burke will provide the detonator and tell the player to meet him at the tower after the bomb is set to explode. Once at the tower, the protagonist can detonate the warhead, destroying the settlement and killing nearly everyone in Megaton. The Lone Wanderer is rewarded with a payment of caps and access to a suite at the tower but loses a large amount of karma points. The only survivor of the explosion is Moira, who becomes "ghoulified" (mutated massively as a result of large amounts of radiation exposure) but is willing to forgive the Lone Wanderer and continue her guidebook. If the player chose to disarm the bomb, the player will later encounter deadly hitmen sent by Tenpenny. Likewise, if they instead destroy Megaton, hostile former residents may attempt to ambush the player as may vigilantes of the "Regulators" faction due to the player character's negative karma.

According to the epilogue of the Fallout 3 Official Game Guide, Moira in 2297 confirms that the protagonist saved Megaton from the warhead and complete her Wasteland Survival Guide, which became a popular book in the Capital Wasteland. The director of the 2024 TV adaptation, Jonathan Nolan, revealed that the Californian town Filly was largely inspired by Megaton given the "trashy" appearance of both and that the protagonists of both Fallout 3 and the TV show likely arrive at their respective areas early on.

Development information Executive producer Todd Howard originally wanted to continue Fallout 3 on the West Coast of the United States; however, Emil Pagliarulo, the game's lead designer, pushed to set the game in Washington, D.C. and the surrounding area, which they were local to and familiar with. While the game features an open world, the cities, like Megaton, are separate game worlds due to contemporary hardware limitation; when the player enters Megaton, the game transitions to a loading screen before interactions can occur. The game locations vary in density and organization from "remote bastions of life" like Megaton to the central hub Rivet City. The fewer number of NPCs reflect the harsh nature of the series' setting. Pagliarulo emphasized that they were focused on making "better NPCs" that engage in more meaningful dialogue rather small talk; for example, addressing others by name and talking more about themselves and their life goals. He cited Lucas Simms of Megaton as an example, elaborating that the player character when talking to Simms while near his son produces dialogue specifically about the child. While reminiscing about a player's satisfaction of detonating the Megaton bomb, Pagliarulo described the player's reaction as "priceless"; Howard used the discussed reaction as an example regarding how the game does not hide whether the player does something bad in-game and instead makes evil acts "visually entertaining". Bethesda Softworks' localization team changed the Japanese version of Fallout 3 to remove both Mr. Burke and the ability to destroy Megaton by activating the nuclear warhead. This was due to the cultural sensitivity regarding the atomic bombings of Hiroshima and Nagasaki in 1945 during the end of World War II, in which Japan was the only nation to have been hit by nuclear attacks.

Reception