Keycard

Fallout 2

 * Vault 15 keycard, a keycard held by Zeke, near Vault 15.
 * Red reactor keycard, a cut keycard intended for Gecko's nuclear power plant.
 * Yellow reactor keycard, a keycard found on an Enclave guard at the Vertibird crash site.

Fallout 3

 * Encryption key, the key to open the drainage chamber's hatch at Broadcast tower KT8.
 * Mama Dolce's encryption key, the card for accessing a terminal on the upper level of Mama Dolce's.
 * Sector A encryption key, the card for accessing a terminal on the upper level of the Robot repair center.
 * High clearance keycard, the card to open a door inside the Mobile base crawler in the add-on Broken Steel
 * Fort Constantine CO keycard, a cut keycard intended to be used in Fort Constantine.
 * Pass card - Red and Blue key cards that can be used in place of Metro tickets with security protectrons in the Washington, D.C. Metro.

Fallout: New Vegas

 * Elder's keycard, one of the three keycards required to start the self-destruct sequence in the Hidden Valley bunker, found on Elder McNamara or Edgar Hardin.
 * Head Scribe's keycard, one of the three keycards required to start the self-destruct sequence in the Hidden Valley bunker, found on Head Scribe Taggart.
 * Head paladin's keycard, one of the three keycards required to start the self-destruct sequence in the Hidden Valley bunker, found on Hardin or Ramos.
 * Jenny Millet's security keycard, a card used in the utility room on the first floor of the REPCONN headquarters, for bypassing security robots.
 * REPCONN second floor security card, a card on the second floor of the REPCONN HQ, to open a door on the second floor.
 * REPCONN third floor security card, a card on the second floor of the REPCONN HQ, for bypassing security robots on the third floor.
 * Lucky 38 VIP keycard, a card on Hanlon's desk in Camp Golf or Anthony House's desk in H&H Tools Factory, used on a terminal in the Lucky 38 penthouse.
 * Blue sector key card, a card on Philip Lem, opens doors in the blue sector in Vault 19.
 * Red sector key card, a card on Samuel Cooke, opens doors in the red sector in Vault 19.
 * Vault 22 cave door keycard, a card in the Vault 22 Common Areas, grants access to the server room for acquiring the HEPA 20 cartridge filters.

Fallout 4

 * Wilson Atomatoys ID card, a card used to unlock several doors at Wilson Atomatoys locations.
 * Vault 118 keycards, a series of eight keycards held by the residents of Vault 118 in the add-on Far Harbor.

Fallout 76

 * Dyer Chemical ID card, a card used to access the sewers underneath Dyer Chemical.
 * Garrahan Estate access keycard, a card used to access the Garrahan Estate.
 * Hornwright bunker card Alpha and Hornwright bunker card Beta, two cards used at the Mount Blair trainyard during Battle Bot.
 * Hornwright Estate access keycard, a card used to access the Hornwright Estate.
 * Morgantown Airport security keycard, a card used at an ID reader in the Morgantown Airport terminal.
 * Raider cache keycard, a card used at an ID reader for a supplies cache at the Pleasant Valley Ski Resort.
 * RobCo research facility keycard, a card owned by Scott Turner, used at an ID reader in the RobCo Research Center.
 * Warehouse basement keycard, a card used to access the warehouse basement with Evan at Mount Blair during Personal Matters
 * Nuclear keycard, keycards used in the Appalachian Automated Launch System to access the nuclear arsenal of Appalachia's missile silos.
 * Sugar Grove agent access keycard, a cut card intended to be used at Sugar Grove.
 * Whitespring room cards, a series of six cut cards intended to be used for luxury rooms at the Whitespring Resort.
 * Assaultron recall keycard, a keycard at the Garrahan Estate that unlocks a terminal at Van Lowe Taxidermy, introduced in the Wild Appalachia update.
 * Can't find the keycard, a paper note at the Garrahan Estate, introduced in the Wild Apaplachia update.
 * Paired keycard 01 and Paired keycard 02, two cards used at the Overlook cabin to access a hidden room, introduced in the Wild Appalachia update.
 * Spare operative keycard, a card found in Lewisburg and used to deactivate a laser grid at Van Lowe Taxidermy, introduced in the Wild Appalachia update.
 * Grafton Steel sector Alpha and Charlie keycards, two cards used at Grafton Steel Underground during Fun and Games, introduced in the Wastelanders update.
 * RobCo experimental cache keycard, a card used at RobCo auto-cache #001, introduced in the Wastelanders update.
 * U.S.S.A. access keycard, a card used to access the Sugar Grove data center and acquired at US-13C Bivouac, introduced in the Wastelanders update.
 * Vault 79 facilities management keycard, a card used in Vault 79 during Buried Treasure, introduced in the Wastelanders update.

Fallout: Brotherhood of Steel

 * Console keycard, a card held by a deathclaw, for gaining access to Level 3 of the Secret Vault - Laboratories.
 * Emergency systems keycard, a card held by Patty, for opening the mutated section of the Laboratories.
 * Facilities keycard, a card given to the Initiate by Patty, for the Secret Vault - Facilities.
 * Laboratory keycard, a card given by Rhombus in Los, and taken from a deathclaw in the Secret Vault - Ruins cave.
 * Residential keycard, a card found in the Secret Vault - Residence Area 2, for opening an inbetween section of Area 1.
 * Ruins keycard, a keycard given by Patty, for accesing the Secret Vault - Ruins.