SCP: Secret Laboratory Official Wiki
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SCPs


"A pack-dependent predator that intelligently mimics human voices to deceive and entrap its desired prey. Remember who your allies are. Be wary of who you trust. Don't fall for stray imitations, lest you’re repaid with a bite.

-Steam Store Page"

SCP-939 is one of the SCPs in SCP: Secret Laboratory, which can talk to human characters and locate other players through walls.

Official SCP Wiki Information

"SCP-939 are endothermic, pack-based predators which display atrophy of various systems...The skins of SCP-939 are highly permeable to moisture and translucent red...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. Their heads are elongated, devoid of even vestigial eyes or eye sockets...The jaw of SCP-939 are lined with red, faintly luminescent fang-like teeth...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."

In-Game

SCP-939 spawns in Heavy Containment Zone in SCP-939's Containment Chamber.

SCP-939 attacks players by clawing them, dealing 40 damage per slash. It also has a leap attack that can performed when fully crouched, which instantly kills humans and can do aoe damage.

SCP-939 can mimic killed players' last recorded voices and mimic the sounds of guns, items, etc. and can sprint at 7 m/s with the sprint key. SCP-939 can easily outrun a human while sprinting, but it's stamina bar runs out rapidly. SCP-939 makes no sound while walking, but it does make a distinct and heavy footstep sound when running.

Another one of SCP-939's unique abilities is to see movement through walls, with its vision range based on movement, but it can only see in grayscale. While crouching, SCP-939 can see humans in a short radius around it.

There are three levels of vision range based on what type of movement a player is doing. If a player is running, SCP-939 can see them from a long distance. If a player is walking SCP-939 can see them from a moderate distance. If a player is sneaking or standing still, SCP-939 cannot see them unless they are in extremely close proximity to 939 (Within clawing distance). On the Surface, SCP-939 can see players regardless of whether they are moving or not.

SCP-939 can also see humans based on the loudness of weapons. The louder the weapon, the further away from where 939 is able to locate it. This is also affected by attachments on the weapon: suppressors and oil filters will reduce the range in which SCP-939 can see you, whereas barrel extenders will increase its range of vision. SCP-939 is also able to see grenades that have been thrown or dropped.

Update History

July 3, 2018 Patch (v7.0.0)
  • SCP-939-XX was added to the game.

November 29, 2019 Patch (v9.0.0, Megapatch II)

  • Removed 25% speed boost when damaged.
  • Sprint speed increased to 7 m/s (was 6.5 m/s).
  • Walking footsteps are silent; sprinting footsteps remain audible.
  • Walk speed reduce to 4.5m/s (was 5m/s).
  • SCP-939’s mimicking no longer plays over SCP chat.

July 24, 2020 Patch (v10.0.0, Scopophobia)

  • Attacks now inflict Amnesia for 3 seconds.
  • Multiple attacks will add onto the duration of the effect.
  • Attacks now consistently deal 65 damage, instead of a random amount between 50 and 80.
  • Fixed an issue where SCP-939 couldn't see thrown grenades
  • Fixed SCP-939 being unable to see SCP-173's model through wall

August 3, 2020 Patch (v10.0.1)

  • Fixed an oversight preventing SCP-939 from seeing moving human players unless they were jumping.

September 14, 2020 Patch (v10.0.3)

  • Added voice chat role indicator.

October 23, 2020 Patch (v10.0.5)

  • Both SCP-939 instances now have a unique Halloween themed skin and name.

November 19, 2020 Patch (v10.1.2)

  • SCP-939's screen will no longer flash when it bites people.
  • SCP-939's bite will no longer lock up when attacking.
  • SCP-939's screen will no longer flicker when motion blur is enabled.

'"December 14, 2022 The Mimicry Update (v12.0.0)"'

  • Complete SCP-939 Rework.
  • New SCP-939 Model and F1 Menu.
  • Mimicry Menu Added.
  • New Grayscale SCP-939 Visuals.
  • Rapidly Decreasing Stamina Bar Added.
  • SCP-939-XX was Removed.
  • Only one Instance is playable.


Related Sounds

Description Sound
SCP-939 attack sound. (#1)
SCP-939 attack sound. (#2)
SCP-939 attack sound. (#3)

Gallery

Related Achievements

  • Microwave Meal: Kill an SCP with the Micro HID.
  • I'll Pass, Thanks: As an SCP, kill someone who's charging or firing the MicroHID.
  • If you want something done right...: Kill an SCP as a Scientist.

Trivia

  • SCP-939 was the only playable SCP in the game to have more than one instance prior to the mimicry update.
    • SCP-939-89 and SCP-939-53 have different models due to a miscommunication, leading to two people making different models for SCP-939.
  • During Halloween 2018 event, SCP-939's head was given a more pumpkin-esque appearance, with a glowing mouth as well.
    • During the April Fools 2019 event, both instances of SCP-939 were converted into "Evil SCP-999", sharing a new player model and orange tint for the echolocation vision of the player.
    • During Halloween 2020 event, SCP-939-89 had a violet glow while SCP-939-53 had a green glow and their breath was smoke which was the same color as they are.
  • Both SCP-939 instances are commonly referred to as "dog" or "doggos" by the community, due to having similarities in appearance to dogs.
  • SCP-939 was the only SCP to have the ability to talk to humans before SCP-079 was re-added in Megapatch 1.
  • According to the names of the sound files for SCP-939's bite, they are tiger growls.
  • SCP-939 sometimes used to make the SCP-106 walking sound effect time to time.
SCPs in SCP: Secret Laboratory
Playable SCPs SCP-049SCP-049-2SCP-079SCP-096SCP-106SCP-173SCP-939
Item SCPs SCP-018SCP-207SCP-268SCP-500
Other SCPs SCP-914
Event Only SCPs SCP-330SCP-2536
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