The world has changed for you slightly after constantly consuming Psycho and you got addicted to this chem making you even more dangerous.

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

Fallout, Fallout 2, Fallout TacticsEdit

You feel light-headed.

— Fallout 2 In-game description

Psycho has a 20% chance to cause addiction. It lasts for a week.

Fallout 3, Fallout: New Vegas, Fallout 4Edit

Psycho has a 10% chance to cause addiction.


Behind the scenesEdit

The picture is a reference to several horror movies. The hockey mask refers to Friday the 13th, the long claws refer to A Nightmare on Elm Street and the chainsaw is a nod to The Texas Chainsaw Massacre as it says "Made in Texas."