Psycho Addiction

Psycho Addiction is a form of addiction which can occur in Fallout, Fallout 2, 'Fallout Tactics, Fallout 3, Fallout: New Vegas, Fallout 4, and Fallout 76''.

Fallout, Fallout 2'
Psycho has a 20% chance to cause an addiction. It lasts for a week. When addicted, the player character suffers a 2 point penalty to Intelligence.