Orthos Prime is an ancient Orokin martial weapon, forged from the purest rubidium making it extremely light-weight.

The Orthos Prime features a higher base damage, range, and attack speed than the DEOrthos Orthos.

This weapon can be sold for Credits645,000.

Manufacturing Requirements
Time: 12 hrs
Rush: Platinum64 50
MarketIcon Market Price: Platinum64 N/A Blueprint2 Blueprints Price:N/A
Drop Locations
BlueprintAxi M1 Uncommon
Lith B6 Uncommon (V)
Lith H2 Uncommon (V)
Meso B1 Uncommon (V)
Axi B2 Uncommon (V)
Axi C1 Uncommon (V)
Axi V3 Uncommon (V)
GenericWeaponPrimeBlade BladeLith C4 Uncommon
Lith B2 Uncommon (V)
Lith B3 Uncommon (V)
Lith B5 Uncommon (V)
Meso D1 Uncommon (V)
GenericWeaponPrimeHilt HandleLith A3 Common
Meso K2 Common
Meso A1 Common (V)
Meso B1 Common (V)
Meso D1 Common (V)
Meso K1 Common (V)
Meso N4 Common (V)
Neo H1 Common (V)
Neo Z1 Common (V)
Axi K2 Common (V)
Axi L2 Common (V)
Lith/Meso/Neo/Axi refer to Void Relics
(V) Denotes Vaulted Void Relics
(B) Denotes Baro Ki'Teer Exclusive Void Relic


This weapon deals primarily Slash b Slash damage.




Weapon LoadoutsEdit


  • The Orthos Prime's Zenurik Pol polarity for its Stance slot makes it ideal for slotting in Mod TT 20pxShimmering Blight immediately. While the Orthos Prime can also use Mod TT 20pxBleeding Willow, its Naramon Pol polarity will reduce the number of its bonus mod capacity, unless changed using Forma.
  • The Orthos Prime (and its normal counterpart the Orthos) has a unique equipped normal attack animation where it performs thrusting and stabbing attacks against an enemy. This attack is completely replaced upon equipping any of the polearm Stance mods.
  • The Orthos Prime's immense range (especially with Mod TT 20pxPrimed Reach) on top of having decent attack speed allows it to build up combo counter exceedingly fast in a relatively crowded environment, making it a viable candidate to Mod TT 20pxBlood Rush and Mod TT 20pxBody Count build to compensate its relatively low stats in late game environment.


  • Prior to Hotfix 9.5.2, this weapon used to have the same stats as normal Orthos.
  • Note that the end-blades are not mirrors of each other and seem to have shapes that could fit together. The blades are asymmetrical.
  • In real life, Rubidium is an alkali metal element that is very soft, ductile and silvery-white in color.
    • It is not good for a blade as it's not hard enough to scratch other materials. (Brinell hardness of 0.216MPa, thousands of times worse than iron, which has 490MPa).
    • Being ductile, it is also easy to bend, so it won't keep an edge (or any shape for that matter) when striking an object.
    • Rubidium, as with most alkali metal (like Sodium), oxidizes violently when coming into contact with water, sufficient to produce a small explosion.
      • This could possibly relate how it can inflict a Blast b Blast proc, even when contacting land.
    • It can spontaneously combust in air, so it is usually stored in sealed containers with an inert liquid (mineral oil) as a buffer.
    • Despite the Orthos Prime's description, Rubidium is actually denser than Iron, by ~53%.
    • Rubidium has useful properties in laser science, atomic clocks, nuclear physics research, and solar panels. This can lead to speculation that the "rubidium" in the Orthos blade is either some kind of engineered material or it is used to focus/channel something.
  • It is also possible that Rubidium in the universe of Warframe is based on Rubedo, and therefore a different chemical or material altogether.
  • Along the blade reads the text "The longest arm is the law," written in the Tenno alphabet. This might be a hidden joke, referring to the Orthos Prime Handle being substantially longer than the Orthos' handle.


  • Orthos Prime in Codex.
  • orthos prime jump attack

Orthos Prime Skins

Patch HistoryEdit

Update 25.7
  • Fixed the Orthos (Prime) changing sizes randomly when cycling through skin options for it, predominantly the Forest-Camo and Tekelu skins.

Update 22.6

  • Fixed polearms clipping on some Warframes when using the standard holster position.

Update 18.4

  • Reduced the damage of the Orthos Prime in Conclave.

Hotfix 17.4.1

  • Fixed some weapons that expand on use not properly collapsing when use is finished (Glaive, Orthos, etc).

Update 10.4

  • Fix for Orthos Prime appearing on Dakra Prime blueprint.

Update 10.0

  • Added missing elemental FX to Orthos Prime.

Hotfix 9.5.2

  • Buffs to Orthos Prime, Slightly faster, bit higher base damage. Longer reach.

Update 9.3

  • Orthos Prime elemental FX update.

Hotfix 9.1.5

  • Fix for not being able to build Orthos Prime in Foundry.

Update 9.0

  • Introduced.

Last updated: Hotfix

See alsoEdit

  • DEOrthos Orthos, the original counterpart.
  • Prime, the Orokin enhancement to a Warframe or weapon.

Start a Discussion Discussions about Orthos Prime

Community content is available under CC-BY-SA unless otherwise noted.