Every human being is born with a door. Not in the chest, where poets place the heart, but deeper—in the root of the spine, in the hollow of the pelvis, in the dark, warm chamber where reason does not go. Behind that door lives the carnal instinct : raw, unpoliced, tidal. It does not know morality. It does not understand calendars or vows. It only knows hunger, heat, and the electric pull of another body.
The lock is waiting. The door is old but strong. carnal instinct key
Maybe the user is referring to a specific indie game. Let me think of indie games with unique items. "The Outer Worlds," but I don't remember a Carnal Instinct Key there. "Hollow Knight" has keys for access, but again, not this name. Maybe "Bioshock" with plasmids, but again, not directly related. Every human being is born with a door
In the far northeast of the Whispering Woods, an exiled raven-morph named Sable runs a black market. He will trade one Carnal Instinct Key for: It does not know morality