HalluciGen was a pre-War company that researched and developed "non-lethal" biochemical technology for use by the United States Armed Forces, however it was only ever used by UK police forces across the country for riot and crowd control, in the wake of automation and food riots and other forms of civil unrest. Releasing HalluciGen Gas in 2055, like many other companies before the war, 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. 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.

HalluciGen aspired to be the world leader in cutting-edge nonlethal technology for police and military use. However, despite extensive work the company's success rate for Non-lethal products 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. Researcher failed to meet expectations and after a string of catastrophic tests, 3 quarters of the staff were sacked on October 18, 2077.

One of their most notable creations was the Irradicator. 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 5,100 Rads 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.