The Cyst is a specimen introduced in Killing Floor 2. It is a failed or incomplete version of the Clot, and thus it is the weakest and least dangerous enemy in the game.

They are slow, clumsy, and will trip and fall should they miss their attempt to grab the player.


The Cyst is a Clot variant, being undeveloped and thus very weak, leading to it's strange and almost child-like personality.

Like all of the male specimens, it is a clone of Kevin Clamely's deceased son.

Weaknesses and Resistances

Weak Against:

  • Assault Rifles (+50% Damage)
  • SMGs (+50% Damage)
  • Handguns (+1% Damage)

Strong Against:

  • Bludgeon (-10% Damage)
  • Slashing (-15% Damage, does not apply to basic Knives)
  • Microwave (-75% Damage)


  • The Cyst was originally going to have translucent skin.
  • The Cyst was one of three archetypes for the Clot but the developers decided to create enemies from all three archetypes.
  • The Zed Mocap Artist described the Cyst as a child and took elements of his childhood into it's movements.