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Gameplay articles
Fallout 3Chem Resistant
Fallout: New VegasChem Resistant
Fallout 4Chem Resistant
Fallout 76Chem Resistant
Fallout: The Roleplaying GameChem Resistant
Fallout: New CaliforniaChem Resistant

Chem Resistant is a perk in Fallout 3, Fallout: New Vegas, Fallout 4, Fallout 76, Fallout: The Roleplaying Game and the Fallout: The Board Game expansion Fallout: New California.

Overview

Fallout 3 and Fallout: New Vegas

Chem Resistant FO3.png
Gameplay articles: Fallout 3, Fallout: New Vegas

The perk has a single rank, granting a fifty percent reduced chance to become addicted to chems, such as Psycho or Jet. The level and skill requirements for this perk are the same in both games.

Fallout 4 and Fallout 76

Fo4 Chem Resistant.png
Gameplay articles: Fallout 4, Fallout 76

The perk has two ranks, with the first one being similar to the one in Fallout 3 and Fallout: New Vegas, as it reduces the chance to become addicted by fifty percent. The second rank grants complete immunity to addictions. In Fallout 4, the perk is an early to mid game perk, whereas Fallout 76 treats it as a late game perk.

Fallout: The Roleplaying Game

2D20 Chem Resistant.png

The perk has two ranks, with the first one reducing the chance to become addicted and the second removing the chance entirely.

Fallout: New California

Chemresistantcard.png
Gameplay article: Fallout: New California

The perk functions differently than for all the other games, instead of reducing the chance to become addicted it allows the player character to take damage to hit points, when otherwise they would become addicted to a drug. It is also possible to discard the perk to remove an "Addicted" trait.

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