The SCP Foundation is a fictional organization that contains and studies anomalous objects, entities, and phenomena. Among the many SCPs, some are larger than others, both in terms of physical size and their impact on the world. In this answer, I will discuss some of the largest SCPs in terms of size and their containment procedures.
SCP-3008: “Infinite IKEA”
SCP-3008 is a Euclid-class SCP that appears to be an IKEA furniture store, but with an anomalous feature – it is infinitely large. The store’s interior dimensions are much larger than its exterior dimensions, and it appears to extend indefinitely in all directions, making it impossible to leave. The store contains an infinite supply of furniture and food, but it is also home to several entities, including “staff members” who are hostile towards any non-staff individuals.
The containment procedures for SCP-3008 involve setting up a perimeter around the store to prevent anyone from entering. Foundation agents are to be stationed at regular intervals around the perimeter, and are authorized to use lethal force if necessary. Attempts to breach SCP-3008’s perimeter are to be met with a swift response, and any individuals who do manage to enter the store must be considered lost.
SCP-087: “The Staircase”
SCP-087 is a Euclid-class SCP that is a staircase located in an unknown building. The staircase is unremarkable in appearance, but it descends infinitely downward. The stairwell is poorly lit, with the lighting only reaching about two flights down, making it difficult to see beyond that point. At around 200 flights down, sounds of a child’s cries can be heard, and at around 400 flights down, the sounds of something walking can be heard. As one descends further, the sounds become more intense and unsettling, leading to reports of panic attacks and mental breakdowns.
The containment procedures for SCP-087 involve sealing off the entrance to the stairwell, as well as posting guards to prevent anyone from entering. Additionally, Foundation personnel are to be trained in identifying and managing potential psychological effects of SCP-087, and all attempts at exploration are to be closely monitored and controlled.
SCP-682: “The Hard-to-Destroy Reptile”
SCP-682 is a Keter-class SCP that is a massive reptilian creature with the ability to adapt and regenerate rapidly. SCP-682 is highly aggressive and has demonstrated intelligence and awareness, as well as a strong desire to escape containment. SCP-682 has been able to survive numerous attempts at termination, including exposure to acid, fire, and even attempts at completely destroying it through use of antimatter.
The containment procedures for SCP-682 are highly complex and involve multiple layers of security and redundancy. SCP-682 is to be kept in a specially-designed chamber with reinforced walls, a titanium-steel alloy floor, and a ceiling made of tungsten-carbide. The chamber is to be filled with a highly acidic solution, and the air supply is to be filtered to prevent SCP-682 from escaping through the air ducts. Additionally, personnel are to be trained in handling and containing SCP-682, and any attempts at terminating the creature must be authorized by at least two Level-4 personnel.
SCP-169: “The Leviathan”
SCP-169 is a Keter-class SCP that is a massive aquatic creature, estimated to be over 2,000 kilometers in length. SCP-169 is capable of generating massive storms and causing tsunamis, and it is believed to be responsible for several large-scale natural disasters throughout history. SCP-169 has not been observed in its entirety, as only a small portion of its body has been recovered.
The containment procedures for SCP-169 are focused on monitoring and tracking the creature’s movements in the ocean. A network of underwater sensors and monitoring stations has been established to detect any signs of SCP-169’s activity, and Foundation vessels are on standby to intercept and contain the creature if necessary. Due to its massive size and destructive potential, any attempt to fully contain or terminate SCP-169 is deemed impossible at this time.
SCP-3000: “Anantashesha”
SCP-3000 is a Keter-class SCP that is a massive sea serpent, estimated to be over 300 kilometers in length. SCP-3000 is capable of telepathic communication and has been observed to manipulate the memories and perceptions of individuals it comes into contact with. SCP-3000 is worshipped as a deity by a group of humans known as the “Church of the Broken God,” who believe that the serpent is the physical embodiment of their deity.
The containment procedures for SCP-3000 involve monitoring the creature’s activity and preventing any unauthorized contact with it. A research team has been established to study SCP-3000’s behavior and physiology, and any attempts at communication with the creature must be authorized by at least two Level-4 personnel. In the event that SCP-3000 becomes hostile or poses a threat to human life, Foundation assets are authorized to intervene and contain the creature by any means necessary.
Conclusion
These are just a few examples of the largest SCPs within the Foundation’s containment. Each of these SCPs presents unique challenges and risks, requiring the Foundation to develop specialized containment procedures to keep them under control. As new anomalies are discovered and contained, it is likely that even larger and more dangerous SCPs will be encountered, further pushing the limits of the Foundation’s capabilities.
