Oubliette-7

Lore: Born in the bowels of Oubliette-7, a pan-galactic asylum for the criminally insane and the supernaturally dangerous. A containment breach involving an experimental psychic dampener fused the life essence of the entire inmate population with the facility's resilient pest population. The Carrion-King is the resulting hive-mind entity. It doesn't just inhabit the prison; it is the prison, a living embodiment of the countless terrors and fractured psyches locked within its walls. It feeds on sanity, growing stronger with every scream of madness it induces. It is the warden and the inmate, the jailer and the cage.