Fallout 4 Creatures

Creatures include animals, humans and their mutated counterparts encountered in the game world of Fallout 4.

Legendary creatures
 Most creature types have a chance to spawn as a legendary variant, as well as tiered named variants leading up to the legendary creature. A legendary creature will almost always drop a weapon or armor piece with unique modifiers (marked in the Pip-Boy inventory with a star). For more information on these modifications, see legendary weapon and legendary armor effects.

In combat, legendary creatures are very powerful, as they are stronger than their non-legendary counterpart (see below for specific differences). They are often among the highest-leveled variants the Sole Survivor will run into at their particular level. For example, at level 30 it seems more likely to encounter a legendary super mutant brute (approx. level 22) than a legendary super mutant (approx. level 10), but the lower-level encounter is still possible.

If the damage from a weapon is not high enough to kill a legendary enemy and they survive a hit with less than 50% of their health remaining, they will mutate. This causes them to regain all health. A mutated legendary enemy gains a glowing aura to show that it has mutated.

Spawn chance table
The standard base chance of a creature spawning as Legendary increases with player level (managed by the LegendaryChanceQuest):

The chance of a creature spawning as Legendary increases with a harder game difficulty setting. The default difficulty is always Normal.

Base
Fallout 4 creatures, 2

Nuka-World
Nuka-World creatures, 2

Far Harbor
Far Harbor creatures, 2

Concept art

 * Radstork
 * Centaur
 * Radbat