Learn all powerful guns in Fallout 4 with our comprehensive Legendary Weapon Perks (Effects) and unique weapons lists.
In games like Fallout 4, weapons are crucial to your character’s strength and survival in the post-apocalyptic world. Legendary weapons, in particular, are highly sought after due to their unique and powerful effects. While some of these weapons, also called “unique weapons”, have specific names and obtaining methods, such as purchasing from vendors or quest rewards, most legendary weapons spawn randomly with different legendary effects (perks) each time. It’s worth noting that while legendary weapons cannot be scrapped, they can be modified to fit your needs.

The exact mechanics of legendary enemy spawns and the likelihood of obtaining legendary weapons or gear in Fallout 4 remain somewhat mysterious. However, it is known that the difficulty level and the number of legendary enemies you have defeated, which can be tracked in your Pip-Boy statistics menu, significantly influence the process. This guide lists and discusses all legendary effects in Fallout 4, including unique weapon perks.
How to Get Legendary Weapons
You can exploit the game’s spawning mechanics to maximize your chances of obtaining weapons with legendary effects (perks). The game first decides if the next group of enemies will spawn a legendary enemy with a potential legendary perk (effect) applied to the weapon or armor. Next, the exact item is randomized, and at the end, the exact perk the weapon or armor will have. As a result, if you know when precisely those decision points are, you can easily farm legendary perks in Fallout 4. Players discovered two such spots, which we described in detail in ourFallout 4: How to Farm Legendary Perks guide.
Here are two effective spots to farm Legendary Weapon Perks (Effects):
Legendary Weapon Perks (Effects) List in Fallout 4
There are 49 different legendary effects (perks) can be applied randomly to weapons in Fallout 4. Below are all of them
Assassin’s
Berserker’s
Blazing (Far Harbor)
Cavalier’s
Charged (Far Harbor)
Deadeye (Far Harbor)
Defiant (Far Harbor)
Duelist’s (Far Harbor)
Exterminator’s
Frigid (Far Harbor)
Ghoul Slayer’s
Hitman’s (Far Harbor)
Incendiary
Instigating
Irradiated
Kneecapper
Mutant Slayer’s
Never Ending
Penetrating
Plasma Infused
Poisoner’s
Powerful / Mighty
Relentless
Resilient (Far Harbor)
Resolute (Far Harbor)
Sentinel’s
Staggering
Steadfast (Far Harbor)
Troubleshooter’s
VATS Enhanced
Unique (Legendary) Weapons in Fallout 4
Unique weapons also have legendary perks; some of those legendary effects are only available on those named guns and cannot be obtained by random spawn. The most common ways to get them are through quest rewards, vendors, or specific chests scattered around the Fallout 4 world. All those weapons can also be obtained by console cheats.
Atom’s Judgement (Far Harbor)
Charging (Automatron)
Grognak’s Axe
Lucky Eddy (Far Harbor)
Lightning (Automatron)
Lorenzo’s Artifact Gun
M4 Carbine (Far Harbor)
Kremvh’s Tooth
Shem Drowne Sword
Striker (Far Harbor)
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