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Super-Ego is a unique robobrain found in Big MT in 2281.


Super–Ego is one of the many boss creatures found lurking in Big MT throughout Old World Blues. It is found wandering east of Higgs Village.

Interactions with the player character[]

Interactions overview[]

38 Paradigm of Humanity
This character has no special interactions.


Apparel Weapon Other items On death
Laser and Mesmetron Fission battery
Energy cells
Sterilizer glove


Super-Ego appears only in the Fallout: New Vegas add-on Old World Blues.

Behind the scenes[]

In psychology, the superego, as defined by Sigmund Freud, is the part of the psyche that acts as a conscience and regulates socially appropriate behavior. This may be yet another reference to the film Forbidden Planet, wherein the creature killing crewmembers is described as "Monsters from the Id."

  • More directly, the robobrain Superego is immediately hostile to the Courier and will probably be destroyed, presumably leaving Id and Ego to run wild; this works as a description for the Think Tank, and most creatures in Big MT.