The Vault - Fallout Wiki

We've Moved! Just as Gamepedia has joined forces with Fandom, this wiki had joined forces with our Fandom equivalent. The wiki has been archived and we ask that readers and editors move to the now combined wiki on Fandom. Click to go to the new wiki.


The Vault - Fallout Wiki
Icon disambig.svg
For other pages related to HalluciGen, see HalluciGen (disambiguation).
HalluciGen, Incorporated
HalluciGEN logo.png
Company data
IndustryBiochemical research
HalluciGen Gas
Key peopleEric Rice, CEO
Samantha Hatchett, VP of Marketing[1]
Damien Hansen
Dr. Everill
CountryUnited States of America
HeadquartersHalluciGen, Inc.

HalluciGen, Incorporated (also known as HalluciGen, Inc. or simply HalluciGen) was a pre-War company which performed biochemical research and testing.


Founded in 2074, HalluciGen aspired to be the world leader in cutting-edge nonlethal technology for police and military use.[2] However, despite hiring Mesmetron's lead designer from Implied Hypnotics,[3] the company's success rate was low, with most of their products failing in testing. As such, the company was in dire financial straits by the third quarter of 2077, with a revenue of $1.1 billion dollars and a net operating loss of $1.8 billion dollars.[4] The former Mesmetron researcher failed to meet expectations and after a string of catastrophic tests, he was sacked on October 18, 2077.[3]

Like many other companies in America, HalluciGen used humans in their testing procedures, with frequent fatalities. In fact, the operating procedures stipulated sedating test subjects with spiked refreshments, with deliberately elaborate paperwork used to ensure absorption.[5] To make things even more atrocious, in case of chemical spills, executives were given priority, escorted by clerical staff, while the decision to evacuate test subjects was left entirely up to the science staff, who could decide to simply leave the subjects behind, sealed in the test chambers.[6]

It should come as no surprise that HalluciGen was contracted by Vault-Tec to devise a psychoactive compound that could be used to manipulate the mood of the Vault dwellers.[7]

Frederick Rivers would also contact HalluciGen for use of their compounds in use of constructing gadgets, specifically the Phantom Device that would release HalluciGen gas upon activation and frenzy anyone enveloped in the cloud.[8]

Known products

HalluciGen Gas

HalluciGen Gas, reliable crowd control since 2055.

— HalluciGen Gas product demo

A riot control tool delivered by a Type-II fragmentation grenade.[9] Testing on October 18, 2077, revealed that the gas achieved the opposite result, causing traumatic adrenal gland rupture in exposed subjects, resulting in hallucinations, erratic behavior, extreme aggression, and heart failure. No test subject survived exposure, making the gas a potent chemical weapon, but an ineffective riot control measure.[10] An attempt was made to spread their product testing outside of their own facility by sending canisters of their gas, along with a full order estimate, to Vivian Garrahan of the Garrahan Mining Company, in an attempt to assist with the mining protests in Appalachia.[11] However, Poseidon Energy bought their gas to end the Associated Miner's Union's protest at Poseidon Energy Plant WV-06. Rather than having the protesters going insane and turn on each other, this only caused the protesters to attack the National Guard that were defending the plant, further exposing them to the gas, and storming the plant where they killed everyone inside.[12][13]


HalluciGen's Dispersant is ideal for peacefully clearing an area of civilians.

— HalluciGen Dispersant product demo

Another riot control measure tested on October 18, 2077, the Dispersant test did not kill the subject. Instead, it triggered a panic and flight response when the subject saw his own child in the waiting room, leading to a police pursuit that apprehended him two days later. The subject had to be institutionalized. The failure of this test led to the Mesmetron researcher being fired.[10]


InvisiWave is an exciting new advance in the field of stealth technology, capable of doing away with cumbersome personal generators forever.

— HalluciGen InvisiWave product demo

An invisibility device demonstrated to the United States Navy, Invisiwave was actually five mirrors, two hacked Stealth Boys, and a trap door. The test was a complete success, leading to inquiries from the Navy about shipboard installations and demand for 200 units from the Sales department.[14]


HalluciGen's Irradicator provides your forces with a state-of-the-art decontamination field.

— HalluciGen Irradicator product demo

Intended to be a portable field decontaminator, the Irradicator turned out to be a two ton machine that managed to remove all biological and chemical contaminants... By applying 5100 roads to the test subjects, resulting in near instant body collapse. Reclassified as a lethal weapon, the Irradicator was potent enough to necessitate stripping the chamber and rebuilding it each time a test was performed.[15]


Criminal scum? Don't get a gun. Try The Suppressor from HalluciGen-- a safe, reliable, and effective way to paralyze even armored targets.

— HalluciGen Suppressor product demo

A pacification gas that managed to incapacitate the subject - permanently. The paralysis necessitated transfer to an external medical facility at Medford Memorial for monitoring and palliative treatment.[3]


HalluciGen, Incorporated appears in Fallout 4 and its add-on Vault-Tec Workshop, and is mentioned in Fallout 76.


  1. Vault 88 chemical research
  2. Hallucigen, Inc. terminals; Accounting Terminal, Third Quarter Financials, Draft 2
  3. 3.0 3.1 3.2 Hallucigen, Inc. terminals; Development Lab Terminal, 10/17 - Test Results: Suppressor
  4. Hallucigen, Inc. terminals; Accounting Terminal, Third Quarter Financials, Draft 1
  5. Hallucigen, Inc. terminals; Reception Terminal, Procedure: Test Subject Intake
  6. Hallucigen, Inc. terminals; Reception Terminal, Procedure: Chemical Emergencies
  7. Vault 88 terminals; Vault 88 Overseer's Desk, R&D Lead Notes
  8. Riverside Manor terminals; Frederick's terminals, To-Do List - RE: Phantom Device: RE: PHANTOM DEVICE I like your second approach better. Why integrate the cloaking device and the gas when just wiring the gas release to the field switch will do? Sure makes assembly easier. Getting the explosive-release valve right is going to be tricky, but this should cut down on potential leaks. You sure you want to use HalluciGen Gas though? Their HQ is up my way, and word on the street is that stuff's bad news. If you decide to try this out, make sure you've got enough ventilation, just in case.
  9. Hallucigen, Inc. terminals; Research Terminal Lab Report: HalluciGen Gas
  10. 10.0 10.1 Hallucigen, Inc. terminals; Development Lab Terminal, 10/18 - Test Results: HalluciGen Gas
  11. Garrahan Mining Headquarters terminals
  12. Poseidon Security Director's Recording
  13. Poseidon Energy Plant WV-06 terminals
  14. Hallucigen, Inc. terminals; Development Lab Terminal, 10/25 - Test Results: InvisiWave
  15. Hallucigen, Inc. terminals; Development Lab Terminal, 10/21 - Test Results: Irradicator

Template:Navbox HalluciGen