Fallout Codexery

Fat Man

A shoulder-fired tactical nuke that turns the battlefield into a radioactive crater.

The Fat Man is an iconic heavy weapon found throughout the post-nuclear wastelands of America. It is a shoulder-mounted launcher designed to fire miniaturized nuclear warheads, capable of leveling buildings and wiping out entire enemy squads with a single shot. Originally developed by the pre-War company General Atomics International as a prototype for military use, it became a symbol of overwhelming firepower in the chaotic era following the Great War.

First Appears
Fallout 2

Lore & Background

Before the bombs fell, the United States military sought ways to miniaturize nuclear technology for individual soldiers. The resulting prototype was named after the specific historical 'Fat Man' implosion-type bomb dropped on Nagasaki. While many designs were scrapped due to safety concerns and political fallout, enough units survived the initial conflict to circulate in the ruins of civilization. In the wasteland, these launchers are revered relics. They represent the destructive power that ended the old world but also offer a chance for survival against overwhelming odds. Factions like the Brotherhood of Steel may possess them, but there is no consistent lore that they specifically guard them as a rule. Raiders and mercenaries prize them equally for their ability to turn any encounter into a decisive victory.

In Their Own Story

The dust settled slowly over the ruined highway as he adjusted his grip on the heavy barrel. The Super Mutant ahead roared, its massive form blocking the path forward. He didn't hesitate; there was no room for error in this wasteland. With a steady breath, he raised the launcher to his shoulder and squeezed the trigger. A flash of white light swallowed the road, followed by a thunderous crack that shook the very foundations of the earth.

Reader's Guide

The Fat Man is a shoulder-fired launcher designed to deliver tactical nuclear payloads at medium range. Wielding it requires significant physical strength due to its immense weight and recoil. Users must load mini nukes into the breech before aiming down the sights, which feature a simple reticle for targeting large groups or fortified structures. Once fired, the projectile travels slowly but explodes with devastating force upon impact, creating a massive blast radius that vaporizes enemies instantly. Survivors within the zone suffer severe radiation poisoning over time, making it an area denial tool as much as a weapon. Reloading is cumbersome and leaves the wielder vulnerable to counterattacks during combat. This artifact is most often found in the hands of seasoned mercenaries, Brotherhood of Steel scouts, or desperate raiders who prioritize firepower over mobility. While effective against heavy threats like Deathclaws or Super Mutants, its rarity and ammunition cost limit frequent use. Proper training is essential to avoid accidental self-damage from backblast radiation.

Did You Know?

Frequently Asked Questions

What exactly is the Fat Man weapon?

The Fat Man is an iconic shoulder-mounted launcher designed to fire miniaturized nuclear warheads at enemy targets. It serves as one of the most devastating heavy weapons available, capable of leveling buildings with a single shot.

What type of ammunition powers the Fat Man?

This artillery piece exclusively requires Mini Nukes to operate its firing mechanism. Because these warheads are scarce resources, players must manage their inventory carefully during prolonged engagements.

What is the historical origin of this launcher?

Created before the Great War for battlefield control, these launchers were mass-produced by defense industries across the United States. Today, they remain scattered throughout ruins where soldiers once stored their heavy artillery supplies.

Does using the Fat Man pose risks to the wielder?

While highly effective against squads, the massive blast radius can injure anyone standing near the impact site, including the shooter. Users must account for significant recoil and lingering radiation when firing in confined spaces.

How easy is it to find a Fat Man in the wasteland?

Scavenging one depends heavily on your location, with availability shifting from rare to common based on regional difficulty. They are frequently guarded by high-level enemies or hidden within secure military installations throughout the game world.

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