Please refer to all SCP-level items by their case-designate review numbers. While common reference names are more "convenient", it is both misleading and unprofessional. Case in point, any continued reference to "Radical Larry" in SCP-106 reports will be met with disciplinary review from sector supervisors.
— Dr. Gears
I would like to here again state that 106 is not, as is commonly believed, a basic predator, on par with an advanced shark. SCP-106 is a sentient being, albeit a totally alien one. SCP-106 appears to be aware of several things beyond the scope of pure instinct and genetic memory. SCP-106 consistently breaches at moments where containment and recovery are most difficult. A fox may see its way out of a trap, but only a man will wait for his captors to look away to escape.
— Dr. Allok


SCP-106 appears to be an elderly humanoid, with a general appearance of advanced decomposition. This appearance may vary, but the “rotting” quality is observed in all forms. SCP-106 is not exceptionally agile, and will remain motionless for days at a time, waiting for prey. SCP-106 is also capable of scaling any vertical surface and can remain suspended upside down indefinitely.  When attacking, SCP-106 will attempt to incapacitate prey by damaging major organs, muscle groups, or tendons, then pull disabled prey into its pocket dimension. SCP-106 appears to prefer human prey items in the 10-25 years of age bracket.

SCP-106 causes a “corrosion” effect in all solid matter it touches, engaging a physical breakdown in materials several seconds after contact. This is observed as rusting, rotting, and cracking of materials, and the creation of a black, mucus-like substance similar to the material coating SCP-106. This effect is particularly detrimental to living tissues, and is assumed to be a “pre-digestion” action. Corrosion continues for six hours after contact, after which the effect appears to “burn out”.

SCP-106 is capable of passing through solid matter, leaving behind a large patch of its corrosive mucus. SCP-106 is able to “vanish” inside solid matter, entering what is assumed to be a form of “pocket dimension”. SCP-106 is then able to exit this dimension from any point connected to the initial entry point (examples: “entering” the inner wall of a room, and “exiting” the outer wall. Entering a wall, and exiting from the ceiling). It is unknown if this is the point of origin for SCP-106, or a simple “lair” created by SCP-106. Limited observation of this “pocket dimension” has shown it to be comprised mostly of halls and rooms, with [DATA EXPUNGED] entry. This activity can continue for days, with some subjected individuals being released for the express purpose of hunting, recapture, [DATA EXPUNGED].

Powers and Stats

Tier: At least 9-A, likely far higher | Probably Low 2-C

Name: SCP-106, "The Old Man"

Origin: SCP Foundation

Gender: Apparently Male

Age: Over one hundred years old

Classification: Keter-Class Humanoid

Powers and Abilities: Matter Corrosion, Intangibility, Pocket Reality Manipulation, Seemingly Teleportation of some sort, Possibly Defies the Rules of Gravity, Durability Negation | Reality Warping, Time Manipulation, Spatial Manipulation, Teleportation, Illusion Creation

Attack Potency: At least Room level (It can corrode and destroy any matter it touches, including entire rooms or steel walls), durability negation via matter corrosion allows him to potentially decay all matter | Probably Universe level+ (Controls all space and time within his pocket dimension)

Speed: Normal Human (SCP-106 only ever walks, even while hunting, towards his victims) | Unknown

Lifting Strength: Unknown

Striking Strength: Unknown

Durability: Unknown (Physical damage appears to have no effect on SCP-106 due to intangibility) | Unknown

Stamina: Superhuman, will literally hunt or stand still for days at a time, stated to be able to hang upside down indefinitely, does not require sustenance or sleep

Range: Melee range, corrosion spreads several meters from original contact point | Unknown

Standard Equipment: None

Intelligence: At least Above Average, maintains good knowledge on which parts of the human body are weakest and how to incapacitate (yet keep alive) his victims for the most amount of time possible.

Weaknesses: Can easily become confused with overly complex structures with no order (chaotic) to them, extreme light causes SCP-106 to flee to the Pocket Dimension, lead and other materials ward the creature off


Notable Victories:

Notable Losses:

Inconclusive Matches: