Fallout 4 Fat Man Location Guide: Where to Find Mini Nukes and the Best Launcher

The Fat Man is one of the most powerful weapons in Fallout 4, capable of launching devastating Mini Nukes that can wipe out groups of enemies in seconds. Whether you’re battling Super Mutants, Deathclaws, or tough quest bosses, the Fat Man can turn the tide of battle in your favor.

In this guide, you’ll learn:

• Where to find the Fat Man launcher
• The best Mini Nuke locations
• Tips for defeating enemies like Super Mutant Suiciders

Fat Man Weapon Stats

• Damage: 468
• Ammo Type: Mini Nuke
• Fire Rate: 1
• Range: 117
• Accuracy: 63
• Weight: 30.77
• Value: 512 caps

Modded Version: MIRV Launcher

The MIRV Launcher mod upgrades the Fat Man to shoot a cluster of Mini Nukes, making it deadly in crowd control.

• Damage (per nuke): 18
• Fire Rate: 1
• Range: 117
• Weight: 36
• Value: 650

Tip: Farming Mini Nukes from Super Mutant Suiciders

Super Mutant Suiciders carry active Mini Nukes. If you shoot their head, torso, or left arm before they detonate, you can loot the nuke without the explosion.

Fallout 4 Fat Man and Mini Nuke Locations

Below are 20+ verified locations where you can find the Fat Man, Mini Nukes, or both. Some areas may require hacking, lockpicking, or quest progression.

Notable Locations:

1.01 – Robotics Disposal Ground
Mini Nuke: Near tire pile (east entrance)
Fat Man: Near rusting cars northwest of the sentry bot

1.02 – Malden Center
Mini Nuke + Fat Man: South section, near an ammo crate

1.03 – Revere Satellite Array
Fat Man: On the top-right satellite
Mini Nuke: Possible drop from Super Mutant Suicider

1.04 – ArcJet Systems
Fat Man: Located on Levels 1 and 2

1.05 – Fort Hagen
Fat Man: In the Command Center (requires hacking or terminal password from southwest pipe duct)

1.06 – Boston Mayoral Shelter
Fat Man: Central area on the main level

1.07 – Salem (Rook Military Surplus)
Fat Man: Inside the surplus store

1.08 – Boston Airport
Fat Man: Check storage areas (varies based on Brotherhood quest progression)

1.09 – Prydwen
Mini Nukes x5 + Fat Man: Level 2 of the airship

1.10 – Fort Strong
Multiple Mini Nukes + Fat Man: Scattered across Level 1 and the sub-level

1.11 – South Boston Military Checkpoint
Fat Man: Inside trailer
Mini Nuke: In locked terminal room (requires Expert Hacking)

1.12 – Gunners Plaza
Fat Man + 2 Mini Nukes: Level 2, south-central section

1.13 – Quincy Ruins (Sturges’ Church)
Fat Man: Carried by Gunner named Baker

1.14 – Spectacle Island
Fat Man + Bobblehead: On a rusting boat to the south

1.15 – Greenetech Genetics
Fat Man: In a trunk near the stairs (available only after certain quest)

1.16 – Ticonderoga Safehouse
Fat Man + Mini Nuke: Sixth floor; loot all levels

1.17 – BADTFL Regional Office
Fat Man + Mini Nuke: East side, near entrance

1.18 – Cabot House
Fat Man + Ammo: Inside, but theft will be flagged

1.19 – D.B. Technical High School
Mini Nukes + Fat Man: Located in basement and Level 1

1.20 – The Castle
Mini Nuke + Fat Man: West point of the star-shaped structure (armory access may require quest completion)

Final Tips

• Carry the Fat Man only when needed—it’s heavy!
• Use V.A.T.S. for better targeting with Mini Nukes.
• Always check for MIRV mods if you want to upgrade the weapon.