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


The cosmic knife clean is a melee weapon almost identical in appearance to the standard variant, except all the cloud residue has been cleaned off, revealing a smooth, shiny blade.

The cosmic knife clean's chief benefit is that it inflicts triple damage on limbs, twice that of the unclean original and nearly twice that of the super-heated version. It also features a slightly higher base damage and critical chance.

Special attackEdit

It has a special Surgical Strike attack, which does 150% damage in V.A.T.S. at the cost of 5 more action points (requires a Melee skill of 50).

Type of attackIcon attackSkill requiredIcon abilityDamage per attack in V.A.T.S.Icon damageAction point costIcon actionDamage per action pointIcon dap
Surgical Strike5045251.8
Note: Melee weapons do double normal damage in V.A.T.S.

It is possible to execute Surgical Strike 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 clean can successfully strike about 995 times from full condition before breaking.


This weapon must be crafted by the player. It cannot be found on enemies or in containers.

Creation requirements

rangeIcon range
Repair: 25
Dead Money add-on
levelIcon level
Cosmic knife clean (1)

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



Weapon name (current weapon is highlighted)Icon meleeDamage per attack (damage per projectile)Icon damageDamage per secondIcon dpsBonus effectsIcon bonus effectAttacks per secondIcon attackCritical Chance % multiplierIcon chanceCritical damageIcon critical damageAction Point costIcon actionDamage per action pointIcon dapDurability (number of attacks before breaking)Icon repairWeightIcon weightValue in capsIcon merchantValue to weight ratioIcon ratioSkill requiredIcon abilityStrength requiredIcon fist
Cosmic knife fnvdmGametitle-FNV DM12
36x1.5 limb damageIcon damage3x112201.27451353501
Cosmic knife clean fnvdmGametitle-FNV DM15
45x3 limb damageIcon damage3x1.215201.59951505001
Cosmic knife super-heated fnvdmGametitle-FNV DM14
42x1.7 limb damageIcon damage3x514201.47451505001
Note: Melee damage is doubled in V.A.T.S.


Can only be crafted by the player character.


This weapon is used in the crafting of the knife spear clean.

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 ps3Icon ps3 xbox360Icon xbox360 The cosmic knife clean is not affected by the Cowboy or Super Slam! perks. [verified]