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A think tank is a unique brain bot. It consists of a robotic sphere-shaped body housing a human brain, with three monitors attached to the robot's chassis, allowing a person to continue living beyond the lifespan of their biological bodies.


The "Think Tank Project"[citation needed] was a scientific project created in Big MT. The project's purpose was to preserve the six Big MT executives. These now-robotic scientists are Klein, Mobius, Dala, 0, 8 and Borous.


A think tank uses the same principle as a robobrain: the brain is held inside a hardened glass container at the top of the robotic body, suspended in pressurized bio med gel (which can take many colors). However, unlike a typical robobrain, the brain within a think tank never had its memory wiped, retaining all memories and emotions it would have had prior to becoming a think tank. The robotic body has three monitors protruding from the robot's chassis. Two of these monitors depict eyes and the other depicts a mouth. In addition to allowing a person to continue living by using their brain as a power source, it provides a container and mobile platform so the operating human brain may observe and approach various items. Like eyebots, think tanks levitate by means of an unknown propulsion system.

They are able to communicate verbally due to a voice module that is integrated into the robotic chassis and connected to the brain. If damaged, the think tank can continue to communicate but only through radio waves. Despite not being designed for fighting, they have "an arsenal of vivisectors, brainial beams, and a rather nasty WooEEEOooWooEEEOoo ray that can make your atoms do a happy dance" for self-defense.[1]


  • All think tanks have an identical bodily appearance; the only differences can be found in the coloration of the container and size of the monitors. Mobius' robotic body appears severely damaged and partially rusted, with his right eye monitor smashed.
  • Most think tanks have identical stats, with 125 Hit Points and 15 DT. Klein and Mobius are significantly tougher than the other think tanks, leveling with the Courier and having a maximum Hit Point total of 500 for Klein and 700 for Mobius.
  • Their weapons do 38 damage per hit and 94 damage per second.
  • Think tanks take increased damage from shots to their chassis, which cause 40% more damage than normal. They take normal damage from shots to their weapon or eye monitors and decreased damage from shots to their mouth monitor.
  • Killing a think tank counts towards the Abominable challenge.
  • The think tanks are capable of displaying emotion to a certain extent. The best example is the retraction and shakes of their eye and mouth monitors, particularly when irritated.
  • Even though it is repeatedly mentioned that the think tanks possess "vivisectors," none of them ever actually use such weapon during combat.


Think tanks appear only in the Fallout: New Vegas add-on Old World Blues. They would have also appeared in Van Buren, the canceled second iteration of Fallout 3 by Black Isle Studios.

Behind the scenes[]

In Fallout Tactics, a similar robobrain-like robot appears, the humanoid brain bot. An experiment was used on Simon Barnaky by the humanoid robots of the Calculator, in which his brain was implanted into a large robotic suit and connected to a robotic program. But compared to the think tank robots, only Barnaky's temperament and a part of his previous consciousness remained, the robotic programming was superior and the humanoid brain bot had trouble displaying human emotions and remembering its feelings and personal life.



  1. The Courier: "Well, I don't want to keep them out of trouble, I want to kill them."
    Mobius: "That will be difficult. It would be like fighting five scaled down versions of me that have better depth perception. And they have an arsenal of vivisectors, brainial beams, and a rather nasty WooEEEOooWooEEEOoo ray that can make your atoms do a happy dance. If you could survive those highly-improbable odds and ends, then deceasing them is definitely an option. Although I doubt killing them would do anything except make you feel better. Or let you brag to other humans about your primal violent-ness-ness."
    (Mobius dialogue)
  2. Chris Avellone on Twitter
Major antagonists
Design Document
CharactersScientistsAgnes · Donald · Goddard · James · Nina · Paul · Think tank · Xian · ZAX
TruckersBillie · Eddie Galenski · Helen Wheels · Jack · Joshua · Ribera · Tanner · Tyler
JackalsBanshee · Crazy Bitch · Howler
LocationsBoulder Train Station · Jackal camp · Baggers camp · Dead ghoul graveyard · Boulder Dome level 1 · Boulder Dome level 2 · Boulder Dome level 3 · Dome tunnels · ZAX Mainframe
QuestsBoulder Scientists Research or Write · Code Yourself Smarter · Defeat the Baggers/Larsen's Team · Destroy the Jackals · Destroy the Truck · Dope RadAway for Larsen · Dump Allies In the Dome · Establish Radio Contact & Trade With Denver · Find out about Wagner · Find out what ZAX is calculating · Fix Things in the Dome · Get the Medical Implants · Give Slaves to Boulder to Make Robobrains · Heal Helen's Kids · Jimmy the Cannibal · Quarantine the Glow Bugs · Research Plague Data · Robobrain a CNPC · Sleep Through Presper's Holocaust · Stabilize the Reactor · Take Computer Classes · Tell the BOS about the Dome · Trade Holodisks to the Geeks · Use Think Tank for Data