Fallout series in other media

7 Days to Die
When speaking to a character named Trader Jen, she may say, "Sorry, I've never heard of a stimpak."

Borderlands 2

 * Playable characters Zero and Maya both have alternate skins in blue and yellow labeled "vault suit" and "vault dweller."
 * Three Dog is referenced with a unique gun named "Thre Dog." Its description references one of Three Dog's radio intros, "because one barrel ain't enough, and two is too few," the quote being "because one dog ain't enough, and two is too low, it's me, Three Dog!"

City Morgue
The trap metal duo City Morgue titled a track "Nuka Cola" on their 2018 debut album City Morgue Vol 1: Hell or Highwater.

Cyberpunk 2077
In the Badlands, corpses are found around a circular dish that reads "101" on the front. This location is Bunker 101, a reference to Vault 101. One of the deceased was named Albert Cole, a live-action roleplayer who was acting out a post-apocalyptic scenario where they leave the safety of Bunker 101 for the first time since nuclear war. This individual is a reference to a Fallout pre-made character Albert Cole. Their roleplay involved an attempt to find a "hydroprocessor" to supply fresh water to the "bunker dwellers," reflecting the Fallout storyline.

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 in the Doom Slayer's "Fortress of Doom" contain references to the Fallout series, such as Guns and Bullets and the Vault Dweller's Survival Guide. A gold tie Mr. Fuzzy doll is found in the first level, "Hell on Earth" while a Teddy Fear appears in the fifth level, "Super Gore Nest."
 * 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.

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

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 Timothy 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

 * 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 Enclave eyebot faintly in the surrounding area.
 * A Vault-Tec bobblehead can be found within Rage in the town of Wellspring on the mayor's desk. The specific bobblehead is the Charisma bobblehead.

S.T.A.L.K.E.R
Weapons such as the Bozar, Gauss rifle, and .223 pistol exist in the game files of S.T.A.L.K.E.R.: Shadow of Chernobyl and S.T.A.L.K.E.R.: Call of Pripyat, but remain unimplemented.

Super Smash Bros. Ultimate
Vault Boy appears as a DLC Mii costume for the Mii Gunner, wielding an alien blaster.

Surviving Mars

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

Team Fortress 2

 * Originally given to all players who owned Fallout: New Vegas before August 8, 2011, the Pip-Boy is obtainable by all players in Team Fortress 2, by either random drop or being crafted.

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," can be found.
 * The Garden of Evan Creation Kit Manual is a reference to the Garden of Eden Creation Kit.

Wasteland

 * Wasteland 2 references the water chip from Fallout and Fallout 2.
 * Wasteland 3 features a banner that resembles that of Caesar's Legion, describing it as "the banner of some long-forgotten plains gang."

Witcher 3: The Wild Hunt

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