Gametitle-FNV DM
Gametitle-FNV DM

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 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).

Icon attackIcon abilityIcon damageIcon actionIcon 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 character. It cannot be found on enemies or in containers. This weapon is also used in the crafting of the knife spear clean.

Creation requirements

Icon range
Repair: 25
Dead Money add-on
Icon 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.



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.

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 clean is not affected by the Cowboy or Super Slam! perks. [verified]

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