The Vault - Fallout Wiki

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The Vault - Fallout Wiki
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For an overview of knife models throughout the Fallout series, see Knife.
Cosmic knife
Cosmic knife icon.png
SkillMelee Weapons 0
Strength Req.1
Attack statistics
12 (16.7)
36 (80.1)
Crit Dmg
Crit % Mult
3 (4.8)AP20
Effect.5x weapon reach
Item HP150
Cosmic knife
Cosmic knife clean
Cosmic knife super-heated
One-handed melee
Editor ID?
Base IDxx00bd09
Perk Effects
Perks (dam.)
Lord Death
Perks (Att.)
Gametitle-FNV DM.png
Gametitle-FNV DM.png

Stays sharp & will last a lifetime!

— Cosmic knife ad

The cosmic knife is a weapon in the Fallout: New Vegas add-on Dead Money.


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

Made from a "space age" Saturnite alloy in the Big Mountain Research and Development Center, cosmic knives were advertised to be super-sharp, all-purpose kitchen knives that wouldn't chip or dull. A surplus of these knives were shipped to the Cantina Madrid kitchens in the Sierra Madre casino in preparation for the Gala Event. Though lightweight and durable, they proved to be too sharp for their own good, easily capable cutting a person's thumb off if they were careless, and even slice through cutting boards with no effort. This made them perfect for cutting open hazmat suits that had their locks corroded by the red cloud in the Sierra Madre during its construction. Concerns were raised about the safety and necessity of having so many of these knives lying about, but Frederick Sinclair insisted that only the best equipment be used.


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

They were also found to have incredible heat retention, able to stay super-hot for hours after being heated over a stove. However, they are much more brittle when heated, and if left on an uninsulated surface, they would melt right through.

The cosmic knife super-heated was accidentally discovered by a chef, when one was left on a hot (450 degrees) stove under a pot for five minutes. The alloy retained so much heat that the blade glowed red-hot. The handle was safe to hold, but when the chef put it down on a table, it melted the table.

Compared to the regular kitchen knife, the cosmic knife is longer, stained red with cloud residue, and does more damage. Using Abraxo cleaner, one can turn it into a clean cosmic knife. They glow violet before they are cleaned, most likely due to years of cloud exposure. The name "cosmic knife" is a brand name only, referring to the "space-age" Saturnite material it's made of, and not because it originates from outer space.

Gameplay attributes

It has a special "Back Slash" attack, which does 70% damage in V.A.T.S. at the cost of 16 action points (requires a Melee skill of 50).

They are used in the crafting of knife spears, throwing knife spears, clean cosmic knives and super-heated cosmic knives. Aside from the handle and tip, they appear similar to the standard knife.



Name Dmg/att DPS Att/sec Crit mult Crit dmg AP cost Weight Item HP Value Stat Req.
Cosmic knife 12 36 3 x1.0 12 20 1 150 35 Melee Weapons:0 Strength:1
Cosmic knife clean 15 45 3 x1.2 15 20 1 200 50 Melee Weapons:0 Strength:1
cosmic knife super-heated 14 42 3 x5.0 14 20 1 150 50 Melee Weapons:0 Strength:1