SCP-106 - Official SCP: Unity Wiki

SCP-106, or "The Old Man" is a keter class SCP and a prominent antagonist of SCP: Unity. It was added in version 0.5.0. 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.

SCP-106 - Wikidata

SCP-106 - Official SCP - Containment Breach Wiki

Steam Workshop::[FR] SCP-RP Abbadon Commuity

Scp-106, SCP FOUNDATION SCPs Wiki

Playable SCP-173 Mod for SCP - Containment Breach - ModDB

Concept Art - Official SCP: Unity Wiki

SCP-106 by profLM

CANCELLED] SCP: Unity Soundtrack - SCP-106 Theme

SCP – Containment Breach / Nightmare Fuel - TV Tropes

SCP-106 Model for SCP:UCB : r/SCP