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SCP-173, or "The Sculpture" is a Euclid class SCP and the primary antagonist of the Light Containment Zone in SCP: Unity.


SCP-173 is a concrete sculpture of unknown origin measuring 2.0 meters tall and weighing approximately 468 kg. The statue is vaguely humanoid in shape, although improperly proportioned. Traces of Krylon brand spray paint on the statue's upper body, resembling a face. SCP-173 consists of multiple individual concrete portions joined by steel reinforcing bars. The two appendages projecting from the upper section of the sculpture consist of exposed and tangled reinforcing bars where the concrete has disintegrated.

When SCP-173 is left unobserved and line of sight is broken by a human conscious being, the object becomes animate, moving at speeds documented between 60 and 90 km/h. The mechanism for its locomotion is not known at this time. Personnel assigned to enter its containment chamber are instructed to alert one another before blinking to avoid complete loss of visual contact.

SCP-173 displays awareness of its environment, reacting to changes and responding to stimuli when it is free to move. It is unknown if SCP-173 is intelligent or sapient. However, the statue is extremely hostile and will attempt to kill any human that enters its containment chamber if left unobserved. The sculpture is capable of manipulating the steel rebar to attack its victims where it will attempt to snap the neck at the base of the skull or strangle the victim to death. However, alternative methods of attack and hostility towards non-humans have been recorded. For unclear reasons, SCP-173 seems incapable of targeting unconscious individuals. The painted facial patterns of the sculpture alter over time as it is left unobserved. As the sapience of the object has yet to be determined, whether this change is dependent on any behavior state or is purely cosmetic is unknown.


SCP-173 is the primary antagonist of the Light Containment Zone. It will attempt to pursue and kill the player via snapping the player's neck. However, SCP-173 cannot move while it is observed. This means that SCP-173 can only move if the player is currently blinking, turned away, or the player's line of sight to SCP-173 is obscured by a wall or other object. SCP-173 will not begin to chase the player until the player has seen SCP-173, at which point the blink meter will appear and SCP-173 will give chase. Any time the player looks away from SCP-173, its facial appearance will change to one of 10 possible faces. SCP-173 can be avoided by getting a closed door between it and the player, as this will prevent SCP-173 from reaching the player as it cannot open doors. Should SCP-173 catch the player, the player will be killed instantly and the game will end.

Currently, SCP-173 spawns randomly in several locations. This location is always within the cluster the player is located in and currently cannot be in the Core Room. SCP-173 will spawn regardless of the location or current enemies in the area, leading to potentially deadly situations should another SCP or even two other SCPs be pursuing the player when SCP-173 arrives. However, SCP-173 cannot spawn in safe rooms such as SCP-1762's containment chamber or the Patron Offices, but it can enter them if let in.

When SCP-173 encounters SCP-131, it will be stopped from moving due to the SCP-131 instances focusing on SCP-173. It will not be able to move even if the player looks away, though its face will still alternate appearances.

SCP-173 does not spawn in its containment cell at the beginning of the game. This is intentional, as SCP-173's whereabouts will be explained in an intro sequence yet to come.


  • SCP-173 was the first SCP to ever be written, somewhat analogous to the fact it was the first SCP to be implemented into the game.
  • While it was the primary antagonist of SCP: Containment Breach, it won't serve this role in SCP: Unity, being designated as the primary roaming enemy of the Light Containment Zone instead.
  • Unlike in SCP: Containment Breach, SCP-173 cannot open doors.
  • SCP-173's arms were planned to be able to move between blinks, and while it's believed this feature was completed, the version it was set to be included in was never released.
  • This was one of the variants of SCP-173.