Gametitle-FNV DM
Gametitle-FNV DM

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


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 through.[1]


The cosmic knife super-heated appears as an ordinary cosmic knife with an orange glow. It will set enemies on fire for a brief period when a critical hit is made. It also has a significantly higher critical multiplier than the other variants, as well as bonus limb damage.

Special attackEdit

It has a special attack called Flambé Cut, which does 90% damage in V.A.T.S. and deals an extra 2 points of fire damage per second, for 5 seconds (requires a Melee skill of 50).

Icon attackIcon abilityIcon damageIcon actionIcon dapIcon effect
Flambé Cut5025.2201.26+2 dam (5 sec)Icon fire
Note: Melee weapons do double normal damage in V.A.T.S.

It is possible to execute Flambé Cut outside of V.A.T.S. (without the required Melee skill of 50 to perform the move) by initiating a power attack (hold attack button) while moving forward.


The cosmic knife super-heated can successfully strike about 745 times from full condition before breaking.


This weapon must be crafted by the player character. It cannot be found on enemies or in containers. The required schematics are on a locked terminal (Science 25), in the utility room in the center of the executive suites floor of the Sierra Madre Casino & Resort.

Creation requirements

Icon range
Repair: 35
Dead Money add-on
Icon level
Cosmic knife super-heated (1)

¹ Craftable without a workbench via a dialogue option with Veronica, or with ED-E once the add-on Lonesome Road is installed.



Icon melee- Weapon name (melee or unarmed)Icon sequence- Attacks in V.A.T.S.
Icon gun- Weapon name (gun, energy or explosive)Icon action- Action point cost
Icon damage- Damage per attack (damage per projectile)Icon dap- Damage per action point
Icon dps- Damage per secondIcon spread- Weapon spread
Icon explosion- Area of effect damageAssault carbine extended magazines- Magazine capacity (shots per reload)
Icon effect- Effect damage & durationIcon repair- Durability (number of attacks before breaking)
Icon bonus effect- Bonus effectsIcon weight- Weight
Icon attack- Attacks per secondIcon merchant- Value in caps
Icon chance- Critical chance % multiplierIcon ratio- Value to weight ratio
Icon critical damage- Critical damageIcon ability- Skill required
Icon crit effect- Critical effect damage & durationIcon fist- Strength required
Icon plus- With all mods attached
Icon meleeIcon damageIcon dpsIcon bonus effectIcon attackIcon chanceIcon critical damageIcon actionIcon dapIcon repairIcon weightIcon merchantIcon ratioIcon abilityIcon fist
Cosmic knife Gametitle-FNV DM12
36x1.5 limb Icon damage3x112201.27451353501
Cosmic knife clean Gametitle-FNV DM15
45x3 limb Icon damage3x1.215201.59951505001
Cosmic knife super-heated Gametitle-FNV DM14
42x1.7 limb Icon damage3x514201.47451505001
Note: Melee damage is doubled in V.A.T.S.


It can only be crafted by the player character.


The weapon has a very high critical multiplier of x5. This fact alone makes the cosmic knife super-heated a very powerful weapon. A player character with a critical chance of 20 or higher would score a critical strike on every hit. This can be achieved very early by having Finesse, 10 Luck, and the 1st Recon beret.

Behind the scenesEdit

Icon cut contentThe following is based on Fallout: New Vegas cut content and has not been confirmed by canon sources.

Shape and texture resources for the cosmic knife, its clean, and super-heated variant are all present in the files of Old World Blues add-on, but not used. Though present, no objects in the add-on use these resources. Curiously the resources are stored within the nvdlc01 folder used by the Dead Money add-on, rather than the nvdlc03 folder allocated to Old World Blues.

Icon cut contentEnd of information based on Fallout: New Vegas cut content.


  • PCIcon pc Playstation 3Icon ps3 Xbox 360Icon xbox360 The cosmic knife super-heated is not affected by the Cowboy or Super Slam! perks. [verified]
  • PCIcon pc Playstation 3Icon ps3 Xbox 360Icon xbox360 Although capable of setting non-player characters on fire, this weapon is not affected by the Pyromaniac perk. [verified]
  • PCIcon pc Playstation 3Icon ps3 Xbox 360Icon xbox360 The glow layer texture for this weapon is referenced by the weapon's model but was not included in the resources for Dead Money. This indicates the weapon was intended to produce a glow from only certain parts of the knife but instead provides a glow over the entire weapon due to the missing texture. [verified]


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