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For the addiction mechanism in Fallout 76, see Addiction (Fallout 76).
ChemReliant.png

Addiction is a group of negative effects acquired from repeated substance use. It represents a dependency to a substance, or activity, means that one's body (or mind) is in need of a regular dose in order to avoid withdrawal symptoms.

Overview

  • Addiction can happen from using too many chems. An addict suffers withdrawal symptoms that can cause ill effects when a drug wears off. Many substances in the Fallout games are addictive. Each chem has a chance of addiction. One of the most addictive chems is Jet.
  • For Fallout 1 and Fallout 2, withdrawal effects occur after becoming addicted and going for some amount of time without using that chem. For non-Jet addictions, addiction lasts seven days from the onset of the withdrawal effects (nine days of non-use), while Jet addiction can only be cured with the Jet antidote.
  • Certain NPCs have addictions, not just the Lone Wanderer.

Types of addiction

Type Fallout Fallout 2 Fallout 3 Fallout: New Vegas Fallout 4 Fallout 76 Fallout Tactics
After Burner addiction No No No No No No Yes
Alcohol addiction Yes Yes Yes Yes Yes Yes Yes
Ant nectar addiction No No Yes Yes No No No
Buffout addiction Yes Yes Yes Yes Yes Yes Yes
Hydra addiction No No No Yes No No No
Jet addiction No Yes Yes Yes Yes No No
Med-X addiction No No Yes Yes Yes Yes No
Mentats addiction Yes Yes Yes Yes Yes Yes Yes
Nuka-Cola addiction Yes Yes No No No No Yes
Nuka-Cola Quantum addiction No No Yes Yes No No No
Psycho addiction Yes Yes Yes Yes Yes Yes Yes
Rebound addiction No No No Yes¹ No No No
RadAway addiction Yes Yes No No No No Yes
Sierra Madre martini addiction No No No Yes No No No
Steady addiction No No No Yes No No No
Tobacco addiction No No No Yes No No No
Tragic addiction No Yes² No No No No No
Turbo addiction No No No Yes No No No
Ultrajet addiction No No Yes Yes No No No
Voodoo addiction No No No No No No Yes
¹Only used in game files; possible bug.
²Cut from the game; exists only in modded versions.

Fallout, Fallout 2, Fallout Tactics

ITEM RISK DELAY DURATION FORM WITHDRAWAL EFFECTS
Beer 5% 2 days 7 days Alcohol addiction -1 AG, -1 CH
Buffout 25% 2 days 7 days Buffout addiction -2 ST, -2 EN, -3 AG
Jet 50% 2 days Until cure is taken Jet addiction -1 ST, -1 PE, -1 Action Point
Mentats 15% 7 days 7 days Mentats addiction -3 IN, -2 AG
Nuka-Cola 10% 30 minutes 7 days Nuka-Cola addiction N/A: "You crave more Nuka-Cola"[1]
Psycho 20% 7 days 7 days Psycho addiction -2 IN
RadAway 10% 10 days 7 days RadAway addiction -20 Radiation Resistance
Tragic Disabled from Fallout 2, depends on mod version Disabled from Fallout 2, depends on mod version Disabled from Fallout 2, depends on mod version Tragic addiction N/A: "You feel a burning desire to open another box of Tragic cards"
In Fallout Tactics, the Psychotic perk reduces the withdrawal effects from Psycho.

Selecting the Chem Resistant perk or trait results in a 50% resistance to the addictive effect of individual chems. Chems which normally have a 10% addiction rate will be reduced to a 5% rate. If the trait is taken, however, chems will only last half as long.

Fallout 3

In Fallout 3, addiction is permanent. It can, however, be cured for a price in caps by visiting a doctor (like the one in Megaton). Owning a house in either Megaton or Tenpenny Tower enables no-cost addiction removal if the My First Laboratory house improvement is installed. Also, the healing archways in Mothership Zeta include removing addictions as part of their healing effects.

Usage Monitor

In addition to standard addiction chance, certain items have an additional tracker value which builds up with each subsequent use of a substance. Internally, this effect is referred to as the "Usage Monitor Effect," or "UMON." Each use of an item adds its UMON value to the total UMON value and remains a part of it until its specified time limit elapses, at which point it is removed from the current running total. The accumulated value of 75 seems to equate to an additional 1% chance (added on top of any existing addiction chance), whereas a value of 175 seems to be equivalent to a 100% chance.

Items not listed in this table are not addictive in Fallout 3; this includes Rad-X, RadAway, and some other substances. Risk is a base chance of addiction per use, and only applies to alcohol items in Fallout 3. UMON is an accumulating chance of addiction. See Usage Monitor for a detailed explanation. Duration is the length of time required to pass without consuming the drug for the accumulated UMON value to be reduced.

ITEM CLASS RISK DURATION UMON WITHDRAWAL EFFECTS
Buffout Chems 10% 30 hours 30 -1 EN, -1 ST
Jet Chems 20% 30 hours 30 -1 AG, -1 CH
Ultrajet Chems 20% 48 mins 12 -2 AG, -1 PE, -1 ST
Mentats¹ Chems 5% 30 hours 30 -1 IN, -1 PE
Beer Alcohol 5% N/A N/A -1 AG, -1 CH
Vodka Alcohol 10% N/A N/A -1 AG, -1 CH
Wine Alcohol 5% N/A N/A -1 AG, -1 CH
Psycho Chems 10% 30 hours 30 -1 EN, -1 PE
Med-X Chems 10% 30 hours 30 -1 AG, -1 IN
Scotch Alcohol 10% N/A N/A -1 AG, -1 CH
Whiskey Alcohol 10% N/A N/A -1 AG, -1 CH
Ant nectar² Chems 5% 1 hour 20 -2 ST
Nuka-Cola Quantum Food 10% 48 mins 12 -1 CH, -15 Radiation Resistance
¹Only applies to plain Mentats, the other variations (Berry Mentats, Orange Mentats, and Grape Mentats) are nonaddictive.
²Only applies to plain ant nectar, the other variation (Fire ant nectar) is nonaddictive.

Fallout: New Vegas

New drugs and addiction-causing substances are found in the Mojave Wasteland. Addiction is permanent unless seen to by a doctor. Fixer will remove the player character's addictions permanently, the only drawback being the application of a temporary "nausea" debuff. With Old World Blues, the Sink Auto-Doc cures addictions for free as part of the basic physical exam. The Logan's Loophole trait prevents addiction entirely at the cost of limiting the Courier to level 30. Perks in Fallout: New Vegas such as Chem Resistant, Brainless and Old World Gourmet reduce addiction chance.

ITEM CLASS RISK DURATION UMON WITHDRAWAL EFFECTS
Buffout Chems 10% 30 hours 30 -1 EN, -1 ST
Jet Chems 20% 30 hours 30 -1 AG, -1 CH
Ultrajet Chems 20% 0.8 hours (48 minutes) 12 -2 AG, -1 PE, -2 ST
Mentats Chems 5% 30 hours 30 -1 IN, -1 PE
Beer Alcohol 5% N/A N/A -1 AG, -1 CH
Vodka Alcohol 10% N/A N/A -1 AG, -1 CH
Wine Alcohol 5% N/A N/A -1 AG, -1 CH
Psycho Chems 10% 30 hours 30 -1 EN, -1 PE
Med-X Chems 10% 30 hours 30 -1 AG, -1 IN
Scotch Alcohol 10% N/A N/A -1 AG, -1 CH
Whiskey Alcohol 10% N/A N/A -1 AG, -1 CH
Ant nectar Chems 5% 1 hour 20 -2 ST
Fire ant nectar Chems 5% 1 hour 20 -2 ST
Irradiated Scotch Alcohol 10% N/A N/A -1 AG, -1 CH
Irradiated whiskey Alcohol 10% N/A N/A -1 AG, -1 CH
Moonshine Alcohol 10% N/A N/A -1 AG, -1 CH
Jake Juice Alcohol 10% N/A N/A -1 AG, -1 CH
Coyote tobacco chew Chems 10% 30 hours 30 -1 PE, -1 CH
Party Time Mentats Chems 15% 30 hours 30 -1 IN, -1 PE
Rebound (uses Jet addiction) Chems 20% 30 hours 30 -1 AG, -1 CH
Slasher Chems 20% 30 hours 30 -1 EN, -1 PE
Rocket Chems 30% 30 hours 30 -1 AG, -1 CH
Irradiated beer Alcohol 5% N/A N/A -1 AG, -1 CH
Hydra Chems 10% N/A N/A -3 EN
Turbo Chems 20% N/A N/A -2 AG
Absinthe Alcohol 10% N/A N/A -1 AG, -1 CH
Dixon's whiskey Alcohol 50% N/A N/A -1 AG, -1 CH
Dixon's Jet Chems 50% 30 hours 30 -1 AG, -1 CH
Steady Chems 80% 30 hours 30 -1 ST, -1 AG
Sierra Madre martini Dead Money Alcohol 15% 30 hours 30 -1 AG, -1 CH

Bugs

  • Icon pc.png Icon ps3.png Addictions in effect at the conclusion of the add-on Dead Money may become incurable.
  • Icon pc.png Icon ps3.png Icon xbox360.png Fixer can permanently remove addictions due to a scripting error.
  • Icon pc.png Ant nectar addiction used to be incurable due to a bug, but this was fixed in Fallout: New Vegas patch 1.2.0.31x. The console command Player.RemoveSpell 0006dc6e will immediately remove the addiction on the PC version.

Fallout 4

Using chems or alcohol can provide powerful temporary boosts, but can also lead to addiction. When addicted, you have to consistently take the chem or alcohol - failing to do so will inflict a severe stat penalty.Loading screen hint

In Fallout 4, addictions can be viewed on the STAT page of the Pip-Boy by choosing Show Effects. After taking on average five of the same addictive item, the player character will become addicted to it.

  • Addiction can be cured either by visiting a doctor or by using certain consumables such as:
  • The Chem Resistant and Party Boy/Party Girl perks can render the player character immune to addictions.
  • The Junkie's legendary effect uses each addiction to increase the weapon's damage.
  • In addition to negative effects on the player character's stats, addiction will also cause some cosmetic effects, such as giving them a slightly emaciated appearance (though this is less pronounced if large or muscular body types were selected during character creation).
ADDICTION CLASS EFFECTS TYPE ConsoleID
Alcohol addiction Alcohol Charisma -1
Agility -1
Various alcoholic beverages² 00245EF1
Buffout addiction Chem Strength -1
Endurance -1
Buffout, Buffjet, Bufftats¹ 00033066
Calmex addiction Chem Agility -2
Perception -2
Calmex 00246BF5
Daddy-O addiction Chem Intelligence -1
Perception -1
Daddy-O 00245EFF
Day Tripper addiction Chem Luck -1
Charisma -1
Day Tripper 00245F02
Fury addiction Chem Strength -1
Perception -1
Fury 00246BFE
Jet addiction Chem Agility -1 Jet, Jet Fuel, Ultra jet¹ 00245F05
Med-X addiction Chem Agility -1
DR -10
Med-X 00245AC5
Mentats addiction Chem Charisma -1 Mentats, (Berry, Grape, Orange variants) 00245EF3
Overdrive addiction Chem Strength -1
Agility -1
Overdrive 00245F09
Psycho addiction Chem Strength -1
DR -10
Psycho, Psycho jet, Psychobuff¹ 00245EFA
X-cell addiction Chem SPECIAL -1 X-cell 00245EFC
¹Taking a mixed Chem will only cause addiction to the main Chem (e.g., taking Bufftats can only lead to becoming addicted to Buffout).
²Beer, Bobrov's Best moonshine, bourbon, rum, vodka, whiskey, wine, Gwinnett ale, Gwinnett brew, Gwinnett lager, Gwinnett pale, Gwinnett pilsner, Gwinnett stout and all ice cold variations.

Fallout 76

References

Illnesses, conditions and addictions
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