Sierra Petrovita

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Gametitle-FO3Gametitle-FO4 NWGametitle-FOS
Gametitle-FO3Gametitle-FO4 NWGametitle-FOS

Then the Lug-Nut guy was in Ronald's face with the "I'll kick your ass" stuff and Ronald was like "Hell no..." and he punched the...

Sierra Petrovita is a Nuka-Cola addict living in Girdershade in 2277 and Nuka-World in 2287.


Sierra was born in 2251. She is a fair-haired 26 year old woman who shows little regard for matters outside consuming and hoarding Nuka-Cola and collecting merchandise relating to it, much to the dismay of her neighbor Ronald Laren, who remains in Girdershade in the hope of seducing her. Her fanaticism for the drink is without question, as she subsists solely on it. She has spent every bottle cap her parents left her acquiring the drink from merchants, travelers, and towns spread throughout the Capital Wasteland.[1]

In the Fallout 4 add-on Nuka-World, 10 years later, she has traveled to an amusement park west of Boston, Nuka-World.

Daily scheduleEdit

Sierra stays in her house all day drinking Nuka-Cola and doing other miscellaneous things. In addition, she hounds passing travelers for any trace of Nuka-Cola Quantum.

Interactions with the player characterEdit

Interactions overviewEdit

General Services Quests
Essential: noIcon cross
Enslavable: noIcon cross
Companion: noIcon cross
Bounty: yesIcon check
Merchant: noIcon cross
Repairman: noIcon cross
Doctor: noIcon cross
Rents bed/room: noIcon cross
Starts quests: yesIcon check
Involved in quests: noIcon cross



Apparel Weapon Other items On death
Wasteland wanderer outfit .32 pistol Nuka-Cola -


  • She is the only non-player character known to be addicted to Nuka-Cola Quantum.
  • When asked about what kind of recipes she can make with Nuka-Cola Quantum, she says it's so rare, she only knows one. However, when she sends the Lone Wanderer off to get the 30 Quantums, she may say, "Hurry back, maybe I'll make some of my legendary Quantum Sorbet!" implying she knows more than one recipe.
  • She can reveal the location of Evergreen Mills through dialogue if asked if there is anything else interesting in the area (she warns the Lone Wanderer to stay away from it).
  • If told about Ronald Laren's sexual intentions for her, she will play it off as a joke on her.
  • In Fallout Shelter, it is possible to find an NPC bearing Sierra's name in random encounters in the wasteland.

Notable quotesEdit


Sierra Petrovita appears in Fallout 3, the Fallout 4 add-on Nuka-World, and Fallout Shelter.


  • pcIcon pc ps3Icon ps3 xbox360Icon xbox360 If you kill Sierra and then steal items from her house, she may protest, even though she is dead. [verified]
  • pcIcon pc ps3Icon ps3 xbox360Icon xbox360 If you fight any creatures outside of Sierra's house and then enter Sierra's house, you will not be able to communicate with her because she is fleeing. If you enter her house while enemies are still nearby, she will flee the house and disappear forever. Sometimes, she may run for cover at another house in Girdershade and can be found there, rather than fleeing town. [verified]
  • ps3Icon ps3 If you plant an explosive on Sierra and then ask her to make a Mississippi Quantum pie, she will start making it, but explode during the process. The player is stuck waiting for it to be made. Loading a previous save fixes this problem. [verified]



  1. Fallout 3 Official Game Guide

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