SCP-966, Slender Fortress Wiki

SCP-966 also known as The Sleep Killer is a boss on Slender Fortress. SCP-966 is a monster that can only be seen through night vision or infrared devices, it looks like a tall lanky humanoid with an alien like face with a boney head, long sharp claws, greyish skin that looks like it is tightly wrapped on the entity and outstretched limbs, they are extremely slow in containment breach and takes up to 30 hits to kill the player and can appear anywhere in the facility after you encounter their cont

Steam Community :: Guide :: (8-11-18)Secret's Not So Secret Info of Slender Fortress 2 Bosses (GOJIRA UPDATE)

Containment Breach, Slender Fortress Wiki

Steam Workshop::SCP 966 - Playermodel

The Facility: Surface Zone- [SCP-Man11]

Invisible Monsters - TV Tropes

SCP-966, Slender Fortress Wiki

SCP-966, Facility Breach Wiki

SCP-966, SCP: Devolved Wiki

SCP 4666 : r/SCP

The four horsemen of the apocalypse : r/DankMemesFromSite19