Use as a devastating heavy sword or apply a Dual Melee stance and split the weapon into two ferocious blades.

The Dark Split-Sword is a melee weapon with the unique ability to change weapon type depending on the Stance mod with which it is equipped: a double-ended greatsword when equipped with Heavy Blade stances, or wielded as two separate blades when using Dual Sword stances.

Manufacturing Requirements
Time: 12 hrs
Rush: Platinum64 35
MarketIcon Market Price: Platinum64 225 Blueprint2 Blueprints:Credits6415,000


This weapon deals Radiation b Radiation damage.



  • Radiation b Radiation damage is less effective against Shields, Infested, and Fossilized.
  • Cannot deal Slash b Slash, Impact b Impact, and Puncture b Puncture damage; does not benefit from mods that increase these damage types.
  • Lowest damage of all Heavy Blades.
  • Heavy Blade mode has low critical chance.
  • Zenurik Pol stance polarity is incompatible with any of the Heavy Blade stances. Furthermore, Heavy Blade and Dual Sword stances do not share any polarities.


  • Without any stance equipped, the Dark Split-Sword is used as a Heavy Blade weapon by default.


  • The Dark Split-Sword is the first melee weapon capable of using two different types of Stance mods, in this case Heavy Blade and Dual Sword stances, giving it the ability to use a total of 6 individual Stance mods.
  • The Dark Split-Sword is made up of a Dark Sword and a Dark Dagger. This can be seen when equipping a stance. (see below)
  • The Dark Split-Sword is the first weapon from the Tenno Lab to require Mutagen Masses in crafting.
  • On the Release of the PC Lunaro update, PC Gamer offered a limited time promo code for the Dulus weapon skin, which is essentially a stretched out PC Gamer logo on the sword.


  • Dark Split-Sword in Codex showing its heavy blade form.
  • Dark Split-Sword in its dual swords form.

Dark Split-Sword Skins

Patch HistoryEdit

Update: The Silver Grove
  • Fixed an issue where the Dark Split Sword would show a Mire when being built in the Foundry.

Update: Specters of the Rail

  • Increased Dark Split-Swords Critical Chance while dual wielding by to 25% and Critical Multiplier to 2.5x.
  • Slightly increased the Dark Split Sword dual wield attack speed.
  • Slightly decreased the Dark Split Sword Heavy Blade attack speed.
  • Increased the Dark Split Sword Heavy Blade Element Damage to 90 and Status Chance to 25%

Hotfix 18.14.2

  • Conclave: Dark Split-Sword can now be used in the Conclave.
  • Visually tweaked the Dark Split-Sword’s Energy trail to fit better on the weapon.
  • Fixed the Dark Split-Sword not listed in the Melee section of the Codex.
  • Fixed ranked Stance Mods equipped on the Dark Split-Sword being un-ranked.

Hotfix 18.14.1

  • Dark Split-Sword can now be sold from Inventory.
  • Fixed the Dark Split-Sword not rewarding Affinity for Clients.

Update 18.14

  • Item introduced.

See alsoEdit

WeaponsDamageCompare AllCosmetics

WeaponsDamageCompare AllCosmetics