Intro None
Type Chaser
Signs of nearing Voices and Roaring
Origin SCP Foundation
Map(s) Containment Breach
Theme song None
Partners SCP-939 duplicates, SCPs
Stunnable? No

SCP-939 is a boss in Slender Fortress.

Description Edit

SCP-939 are endothermic, pack-based predators which display atrophy of various systems similar to troglobitic organisms. The skins of SCP-939 are highly permeable to moisture and translucent red, owing to a compound chemically similar to hemoglobin. SCP-939 average 2.2 meters tall standing upright and weigh an average of 250 kg. Each of their four limbs end in three-fingered claws with a fourth, opposable digit, and are covered in setae which considerably augment climbing ability. The jaws of SCP-939 are lined with red, faintly luminescent fang-like teeth, similar to those belonging to specimens of the genus Chauliodus, up to 6 cm in length, and encircled by heat-sensitive pit organs. Eye spots, sensitive to light and dark, run the length of their spined dorsal ridges. These spines may be up to 16 cm long and are believed to be sensitive to changes in air pressure and flow.

SCP-939's primary method of luring prey is the imitation of human speech in the voices of prior victims, though imitation of other species and active nocturnal hunts have been documented. SCP-939 vocalizations often imply significant distress. Prey is usually killed with a single bite to the cranium or neck.

In Slender Fortress Edit

Each will be patrolling the area in a clockwise pattern. Upon approaching an instance, it will mimic the voice of Foundation personnel in an attempt to lure the player towards it. When it sees the player it'll take chase and attempt to kill them.

Should the player be in proximity of a SCP-939 instance, it will detect the player's footsteps. Walking while crouching decreases chance of detection, but doesn't prevent it completely. Should the player become detected, SCP-939 will begin pursuit until losing track of the player.


Specimen OneEdit

Upon detecting the playerEdit

  • "Who the hell is there?!"
  • "Show yourself!"
  • "Who's there?!"

Luring the playerEdit

  • "Hello?"
  • "Is there someone there?"
  • "To think, today of all days."
  • "[sigh] I hope the rest of them are alright."
  • "I wonder what the hell's going on up there."
  • "[sigh]"
  • "H..hello?"
  • " someone there?"
  • "Researcher Tole to main, please respond."
  • "Tole to main, anyone out there?"

Attacking the playerEdit

  • *scream*
  • *screaming*
  • *roar*

Specimen TwoEdit

Upon detecting the playerEdit

  • "What the hell are you?"
  • "Hey, who's there?!"
  • "Oh god, what the hell is that?!"

Luring the playerEdit

  • "H-hello?"
  • "Heh...maybe I'm just hearing things."
  • "Hello? Who's there?"
  • "Are you okay?"
  • "Where are you?"
  • "Are you injured?"
  • "Hello?"
  • "Hello?"
  • "Who's down here?"
  • "Anyone down here?"

Attacking the playerEdit

  • *scream*
  • "No!"
  • "No!" *screaming*