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Cryo grenade (Mothership Zeta)

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Icon disambig.svg
For an overview of grenade models used throughout the Fallout series, see Grenade.
Cryo grenade
Cryo grenade icon.png
Attack statistics
1 (6.1) + 0 (5) ExplosionIcon explosion.png
Crit Dmg
Crit % Mult
Effectstun and freeze for 3s
Item HP5
Editor ID?
Base IDxx002a71
Perk Effects
Perks (dam.)
Demolition Expert
( +0 ExplosionIcon explosion.png)
Bloody Mess
(+0.1 +0 ExplosionIcon explosion.png)
Ghoul Ecology
(+5 +5 ExplosionIcon explosion.png)
Gametitle-FO3 MZ.png
Gametitle-FO3 MZ.png

The cryo grenade is a grenade in the Fallout 3 add-on Mothership Zeta.


The following section is transcluded from Grenade. To modify, please edit the source page.

Elliot Tercorien or cryoscientists of the Commonwealth is debatable, but the concept is the same.


The cryo grenade deals only one point of damage to targets, but will freeze them solid and paralyze them for 3 seconds. This time can be used to get a few easy shots on the foes with a more powerful weapon or use it to freeze an non-player character in possession of a unique weapon, then take it from them while they're frozen.

Thrown grenades are affected by physics; they may bounce or roll unexpectedly if not thrown carefully. However, in game physics can also be used to your advantage; such as throwing grenades through doorways or bouncing them around corners to attack enemies who cannot see you.

Holding the fire button down for a longer period of time will increase the strength of the throw. Grenades can be thrown for longer distances than normal through successful V.A.T.S. hits. Grenades cannot be cooked to detonate earlier.

It is also possible to plant a live grenade on a non-player character by passing one from your inventory to the non-player character's inventory via pickpocketing.


These grenades can be obtained from Elliot Tercorien after releasing him from stasis and going through the cryo lab with him. He will pick up some cryogenic parts in the area where Beckett and Daniels are frozen which enables him to start making the grenades upon return to the engineering core. He will give you 3 cryo grenades and 3 cryo mines after you wait an hour for him to make them. After that must wait another 3 hours for him to make 2 more each time you ask. Elliot will not be able to make any more cryo grenades or mines after he leaves the engineering core during "This Galaxy Ain't Big Enough"

Behind the scenes

  • The cryo grenade was originally a weapon cut from the final version of Fallout 3 for an unknown reason. It does not exist in the final version of the game, nor does it exist as an unused item in the G.E.C.K. editor. However, the mesh and texture are contained within Fallout 3's BSA files, these files however were not used and new meshes and textures were made to replace them in Mothership Zeta. Another cryo weapon, the Cryolator exists only as a mesh and textures in Fallout 3s BSA files.


  • Xbox 360Icon xbox360.png If you are caught in the blast and paralyzed, the frost effect will not appear unless you are in your vault undergarments.