SCP - Containment Breach Wiki


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This article discusses things that may not relate to SCP - Containment Breach.

SCP-087-B is an experimental horror game created by Regalis. It is based on the original SCP-087 and it is considered to be the stepping stone to the creation of SCP - Containment Breach.


The game starts out at the entrance where an unidentified doctor will tell the player through a radio to proceed down the hallway and to be cautious. For the rest of the game the player is walking through hallways and down staircases while attempting to avoid monsters.

There are a total of 270 floors. Once the player reaches the 250th, the walls will close on the player and they will be ambushed and killed by the The Masked Man. As the game crashes, one of these crash messages will appear:

  • "NO"
  • "It's not about whether you die or not, it's about when you die.
  • "NICE"
  • "Welcome to NIL"
  • an empty model window with no text


WASD or the arrow keys to move.


The Masked Man[]


The Masked Man is the most common entity that manifests throughout the game. It appears as a black humanoid figure wearing a white mask with a smile two circular black eyes and all clothing or corpse are black. This is designated as SCP-087(B)-A.

Throughout the game it will manifest in a variety of ways, as listed below.

  • The Masked Man will manifest at either a corner of a turn or semi-halfway into a hallway for a split second before disappearing. This is typically the first creature the player will encounter during their descent.
  • When the player is roughly halfway down a hallway, the hall with become darker and the player will light a match to see what is in front of them. When lit, the match will reveal The Masked Man walking towards the player. Alternatively, the Masked Man may approach the player from behind under the same conditions, forcing the player to keep moving forward. In this case, there will be a brick wall in the way, which will move as the Masked Man nears it, allowing the player to keep moving and elude it.
  • When the player begins to go down a new hallway, the hallway will become completely dark for a moment. The hallway will become brighter and The Masked Man can be seen in the distance, looking at the player while standing at the end of the hallway. The darkness will then "flicker" a few times. During this, The Masked Man while get closer and closer to the player until it is standing right in front of them. This is theorized to be based off of SCP-173.

Physical contact with the Masked Man will result in an instantaneous death. The player must keep their distance from it in order to stay alive.

The Red Mist Monster[]


The Red Mist Monster appears as a black humanoid figure with large red spots across its body and solid white eyes. also by some fans called "SCP-087(B)-B".

It will appear a few times throughout the game, as listed below.

  • Before the 40th floor, the Red Mist Monster will manifest in the corner of the big room while shouting at the player not to look at it. The player must keep direct eye contact with it otherwise it'll quickly move towards the player and kill them. This is speculated to be based on SCP-173.
  • In the window hallway the Red Mist Monster will spawn behind the window if the player looks in the window, though it cannot harm the player.
  • After approximately 20 floors, should the player encounter the fork path and walk directly up to the pit, the Red Mist Monster will appear behind the player and walk towards them.

This entity will also shift the player instantaneously upon physical contact.


  • "Don't look at me..."
  • "Behind you..."
  • "Run Run You Coward!"

The Cheshire Smile[]


The Cheshire Smile is an entity appearing as either a disembodied twisted bloody smile with a pair of solid white eyes, or simply a pair of solid white eyes in the darkness. This is designated as SCP-087(B)-C.

At random occasions throughout the game, it will manifest before the player with or without its smile. The exact distance from the player varies with each manifestation, ranging from being close to right in front of the player to being nearly half a hallway's length away from them.

When the player moves close enough to it, it will suddenly vanish. While vanishing, it will whisper "No" to the player. This behavior occurs with each encounter of it and does not change in anyway whatsoever.

The Unidentified Doctor[]

The Unidentified Doctor is a man who speaks via radio. He directs the experiment, counseling the player and directing them down the staircase. However, as time passes, the radio signal will become weaker, until it will be intercepted by a second voice who may possibly be one of the few monsters encountered in the SCP-087-B.


  • "You are now inside the SCP 087-B. Please proceed with caution."
  • "The radio signal seems to be getting weaker."
  • "Radio communication will become impossible after the 6th floor. Good luck."
  • [Demonic and distorted voice] "It's below you and it's watching. You will die trapped in this hallway"



This is the room where the game begins. The door will shut behind the player and an unidentified doctor will tell the player through the radio to proceed down the staircase. This consists of the room with the door, a simple hallway, and a staircase leading down to the continuing levels.

The Entrance


This is the most common room in the game. It is designed as a hallway leading to the next floor where a sign at the corner will be displayed, saying the floor number. Should the player pass enough of these signs, they will begin to display random characters. A You Tube video of a dedicated player presents a slightshow of them (

There is also the Corner Hallway, a slight variation of the Hallway. It may simply because it arrives at a left or right, however, there is no relevant change here.


The Hallway


The Corner Hall


This room is a simple fork in the road with two paths. One path will lead to the continual path through the game. The second path will lead to a visible pit into death.

Sometimes, if the player walks right up to the pit before turning around, The Red Mist Monster will ambush the player, killing them with or without falling into the pit.

To avoid this ambush, do a small creep next to the wall on the right side while keeping a fair glimpse at the back (do not fully turn around). After that, make out a corner in the far distance. If there is - while still keeping your creep distance fairly small, proceed safely. Otherwise, do not advance further, get out and head to the other side.


The Forkpath

Big Room This room is rather a large room that will be encountered when first walking down a flight of stairs. The player will then be in an expanse of space that, if navigated well, will lead to an arch that leads to the next hallway. The Cheshire Smile will usually spawn next to the arch.

The Big Room

Maze A room that is mixed entirely with several dead-end paths. Other than being slightly frustrating, there is no real danger of the maze other than being lost.

The Maze

Windowed Hallway This is simply a hallway and staircase (similarly to the Hallway) that contains a window on the right side. The player will normally encounter The Red Mist Monster through the window, however it cannot harm them.

The Window Hallway



  • Regalis has stated that the face that appears at the ending of the first version of SCP-087-B is Finnish rapper Kalle Havumäki, who is famous on Finnish imageboards, and 609.ogg is a clip taken from an interview with him. Once the game became more popular, he replaced this with a more appropriate ending.
    • 609.ogg, the sound file in the ending states "Mulla on oma bändikin, Resisposse", which approximately translates into "I've even got a band of my own, Resisposse".
  • The Doctor's voice was made with TTS - Oddcast-  Charles UK voice, since the pronunciation on "087-B".
  • The Cheshire Smile makes a cameo in SCP: Containment Breach. If the player looks at SCP-895 through a monitor long enough, images will flash on said monitor. One of these images is the Cheshire Smile.