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The Cryolator is a unique weapon in Fallout 4.


A part of the Vault 111 experiment, besides using cryosleep pods, was to find other uses for cryotechnology, primarily using it as a weapon. Conceptually, it is a flamer that shoots ice.


The weapon creates a cryogenic spray when fired that fades away at mid-range. Firing continuously at an enemy may freeze it solid and render it unable to move or attack for a period of time. More durable enemies will require longer exposure, and some cannot be frozen at all. The Cryolator can chew up large amounts of (rather expensive) ammunition, so use it wisely.

The crystallizing barrel mod will convert the weapon into an automatic crystal shooter. This makes the weapon far more ammo-efficient, as well as granting additional benefits such as increased range, increased damage (crystals do ballistic as well as energy damage), and a very small AOE. However, the projectiles do not travel particularly quickly and suffer from a noticeable flight trajectory.

Weapon modificationsEdit

Slot Mod Description Weapon prefix Damage per shot changeIcon damage
Fire rate changeIcon attack
Range change Accuracy changeIcon spread
Weight changeIcon weight
Weapon value change in capsIcon merchant
Components Base ID
Barrel Standard barrel Standard. Circuitry x2
Glass x3
Plastic x3
Screw x3
Steel x4
Crystallizing barrel Shoots cryogenic capsules. Superior range. Crystallized +20 attackIcon attack +132 +4 +5 +40 Adhesive x4
Circuitry x4
Fiber optics x3
Glass x3
Plastic x7
Screw x6
Steel x7
Stock Standard stock Better recoil. Adhesive x6
Plastic x2
Screw x8
Steel x13
Recoil compensating stock Exceptional recoil. Recoil compensated +6 +1.5 +45 Adhesive x6
Aluminum x11
Fiberglass x11
Rubber x1
Screw x8
Spring x6
Sights Standard sights Standard. Adhesive x1
Plastic x2
Steel x2
Glow sights Improved focus and better sighted accuracy. Glow-sighted +1 +17 Adhesive x3
Nuclear material x2
Plastic x3
Steel x3


Inside Vault 111, in a display case in the Overseer's Room behind a Master level lock. It cannot be picked up at the beginning of the game due to the inability to pick Master level locks before exiting the Vault. Interaction with the case prompts a line from the Sole Survivor, saying that they will return for it later. An entry on the Overseer's Terminal in the same room can be found detailing the weapon and why it was built.


  • The Cryolator was supposed to appear in the final version of Fallout 3 but was cut out instead. The version of the Cryolator in Fallout 3 does look fairly different.
  • A "cryolator pistol" was seen in trailers before game release, but doesn't appear in the finished game.
  • Cait will be able to unlock the case far earlier than the Sole Survivor can, granting early access to the weapon.




  • pcIcon pc ps4Icon ps4 xboxoneIcon xboxone If taking Dogmeat to Vault 111 and ask him to find useful items near the Cryolator, he will take it out for the Sole Survivor to use. The player character does not have to reach the required level (if ammo cannot be found, check Dogmeat's inventory). [verified].
  • pcIcon pc xboxoneIcon xboxone After a cleared area resets, enemies killed with the Cryolator may respawn lying on the ground, completely unable to move or attack. These enemies will be in this immobile state every time they respawn.[verified]


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