Fallout series in other media

Doom

 * Doom (2016): Vault-Tec logos are found on heavy vault doors in the Mars facility at the beginning of the game.
 * Doom Eternal: Items are found in the Doom Slayer's "Fortress of Doom" such as Vault Dweller's Survival Guide - Preparing Yourself and Your Loved Ones For the Inevitable Nuclear Apocalypse and Nuka-Cola - A History from the Atomic Age of Flavor.
 * Ashes 2063: A post-apocalypse-themed total conversion mod for Doom II, created by Vostyok. In the mod, there are t-shirts stylized after vault jumpsuits and a pre-War company named "Pole-Vault Tek" that features Vault Boy with a top hat and a mustache as its mascot.

Dota 2
For preordering Fallout 4 through Steam, Dota 2 players received an announcer pack featuring Mister Handy.

The Evil Within 2
One of the hidden collectibles in The Evil Within 2 is a Vault-Tec bobblehead.

Goat Simulator 3
The video game Goat Simulator 3 contains the quest The Big Red Button which involves detonating an atomic bomb. The quest rewards the player with a Vault 55 suit which is named Fallout Boi. The item description reads "Goat. Goat never changes" in reference to the Fallout series tagline.

High on Life
In the video game High on Life, Killing the child character Slumsley results in earning the "Fallout Doesn't Let You Do This" achievement, worth 20 gamerscore.

Jeopardy!
The trivia game show Jeopardy! has featured two clues related to the Fallout series. On February 24, 2011, "The latest "Fallout" game takes place in this city after your character is left to die in a Mojave grave" was a clue in the category Computer Games, with the correct answer being Las Vegas, a reference to Fallout: New Vegas. On July 11, 2017, "The Wasteland is the result of nuclear war; exit one of these title shelters & rebuild in the 4th edition" was a clue in the category Video Games, with the correct answer being Fallout.

Minecraft
The "Fallout Mash-Up" texture pack includes characters skins such as Preston Garvey, Harold, Colonel Autumn, and Three Dog. Locations from the games such as Vault 101, Vault 111, Diamond City, The Citadel, The Prydwen, The Cathedral, and the Mariposa Military Base are also included. Default creatures are changed to mirror Fallout equivalents, such as the Iron Golem becoming Liberty Prime, the pig becoming a mole rat, and the cow becoming a brahmin. The Gold armor is T-45 power armor and the Diamond armor is instead X-01 power armor.

The Outer Worlds
Led by Fallout developers Tim Cain and Leonard Boyarsky, Obsidian Entertainment's The Outer Worlds contains references to Fallout:
 * A "Great War" on Earth that took place during the mid-21st century is mentioned.
 * October 23 is the date that the Hope colony ship is found, the same day as the Great War.
 * The number 13 is stenciled throughout colony ship interiors.

Prey (2017)
The note "Eel Tank Maintenance Manual" is described in an email printout from "\\vault13.Talos.lan\LS_WaterTreatment," a reference to Vault 13.

Rage

 * A Charisma bobblehead is found in the town of Wellspring on the mayor's desk.
 * In the Subway Town, a picture in a magazine is a freeze-frame of a nuclear explosion seen in Fallout: A Post-Nuclear Role-Playing Game game with the tag line, "War, war never changes." The player can also see the explosion and an eyebot in the surrounding area.

Rocket League
In the video game Rocket League, it is possible to acquire a Vault Boy bobblehead antenna.

Super Smash Bros. Ultimate
Vault Boy appears as a DLC Mii costume for the Mii Gunner.

Surviving Mars

 * A random event involves a water chip, vital to the player's Martian colony, accidentally delivered "somewhere in southern California."
 * The SPECIAL system is referenced in the form of an achievement named "S.P.E.C.I.A.L."

Team Fortress 2
A Pip-Boy was a cosmetic item in Valve's Team Fortress 2, awarded to players who owned Fallout: New Vegas before August 8, 2011. As of the August 9 patch, the item could be purchased, traded, crafted, gifted, and found in random drops by all players. The Pip-Boy can only be equipped by the Engineer.

Underrail

 * A strange wrist computer, resembling a Pip-Boy, and described as a "commercial civilian wrist computer," with a target audience of "young blonde men in jump suits," is found.
 * The Garden of Evan Creation Kit Manual is a reference to the Garden of Eden Creation Kit.

Witcher 3: The Wild Hunt

 * Peasants remark "War - it just never changes." and in Scoia'tael camps, inhabitants say "War... War changes everything."
 * After the completion of the DLC quest "Fools' Gold," a Lurtch village peasant sitting on the side of the road will comment "War, war never changes."

Wolfenstein: The New Order/The Old Blood
On soda machines, the Nuka-Cola logo can be found among other in-universe brands.

Xbox LIVE
Fallout-themed items could be purchased and added to user avatars, part of the Avatar Game Style Xbox LIVE feature. Items included a Vault Boy head, Vault Boy suit,, Vault 101 suit, Fallout 3 ringer shirt, Vault Boy shirt, and a Bethesda Game Studios shirt.