* BrokenBase:
** There is not generally much overlap between fans of the Interplay/Obsidian games and fans of the Bethesda games (though exceptions exist), and the disagreements between the two groups can get rather… [[SeriousBusiness vehement]]. It even spills over to Wiki/TVTropes - much of this page's edit history can be summed up as a permanent low-intensity Administrivia/EditWar between ''Fallout 1'', ''2'', and ''New Vegas'' fans and ''Fallout 3'' and ''4'' fans. Best advice is to [[SacredCow only say positive things]] about ''all'' of the games (aside from [[BlackSheep Brotherhood of Steel]], of course) and [[ScrewThisImOuttaHere flee]] if/when the arguments increase in pitch and fervor.
** There is even a splinter group of ''Fallout 1'' fans that dislikes ''Fallout 2'' because they felt it introduced "too many silly elements" to the universe.
* ComplainingAboutPeopleNotLikingTheShow / FandomBerserkButton:
** Saying anything negative about ''any game in the series'' (with the exception of [[AcceptableTargets Brotherhood of Steel]]) will usually get you yelled at, and called either a 'stupid Bethesda fanboy' if you complained about the first two games [[MyFriendsAndZoidberg or Tactics]], or a 'stupid NMA troll' if you complained about ''3'' onwards.
*** Notably, the biggest mistake you can make is complain about the graphics in the first two games. ''That'' tends to cue a lecture on the character models being actual clay models.
** Related to the above, mentioning/saying good things about ''[[DorkAge Brotherhood of Steel]]'', as it's the '''one''' game in the entire series that ''everyone'' agrees to hate on.
** On a lighter note, not calling Vault Boy by the right name (as noted below).
* CompleteMonster: [[Monster/{{Fallout}} Has its own page]]
* CrowningMusicOfAwesome: ''Fallout: New Vegas'', Music/FrankSinatra, NO EXCEPTIONS! (And that's just the teaser!)
** ''Fallout 4'' somehow got ''[[Series/WonderWoman Lynda Carter]]'' to record her own songs for the game - and '''all''' [[NotableOriginalMusic are worth a listen to]] (or a few dozen).
* DemonicSpiders:
** ''[[MemeticMutation Jesus Christ it's a Deathclaw - get in the car!]]'' In most games, Deathclaws are among '''the''' deadliest enemies. Strong, tough, and fast is only being charitable when describing their ferocity.
*** Obsidian decided to go above and beyond in ''New Vegas''. Not only is there no dart gun, which was effective against Deathclaws in ''Fallout 3'', but they now come in packs and have titanic damage thresholds, meaning most (as in, everything smaller than the anti-materiel rifle) will only do ScratchDamage. Thankfully, they now can't spawn randomly. You'll know where they are.
*** Bethesda seems to have thought that Obsidian was too much of a merciful god, as ''4'' adds in ''[[OhCrap Chameleon]]'' [[FromBadToWorse Deathclaws]]. They're not only still resistant to pain and injury to a frankly ridiculous degree, but [[ChameleonCamouflage can change their skin color to near-perfectly blend into the environment]], letting them sneak up on you completely unawares before ripping your face off. Once you encounter them, [[ParanoiaFuel you'll be constantly on guard for the rest of the game]].
** Yao Guai are the not-quite-Demonic cousin of Deathclaws. They're easier to kill and do less damage, but unless you're high level they are still dangerous, especially in packs.
** ''Broken Steel'' adds in Super Mutant Overlords. You won't encounter them until you're a pretty high level, but they're equipped with powerful weapons and are ridiculously tough. To make matters worse, they have an unblockable damage bonus of around 20-40 HP per shot depending on the weapon. Even wearing power armor and toting a rocket launcher, your ass may well be handed to you.
*** Overlords are nothing compared to the Albino Radscorpions, which have almost as much HP as a Super Mutant Behemoth! Their only saving grace is their lack of a long-range attack, so you can get out of dodge by climbing on top of something they can't reach you from. That said, considering their durability and damage potential, running the hell away is a good idea too.
*** And rounding out the dreaded ''Broken Steel'' trio are the Feral Ghoul Reavers. Oh hey, [[BossInMookClothing they look just like]] Feral Ghoul Roamers, [[TemptingFate piece of ca-]] [[OhCrap WAIT]] [[CurbStompBattle WHAT]].
** Damn those swampfolk/tribals and that magical unresistable damage bonus!
** Those stealth suited aliens. Hell, you feel pretty stupid by shooting a mini nuke to a 3 foot tall guy and watching he shoot back at you with his alien rifle just after.
** Any player trying to do "Those!" at any level below ten or so will find the fire-breathing ants a ''hell'' of a challenge. Sometimes it's an easier and smarter idea to just kill one ant on the street and just do the quest later in the game, so that their levels stay somewhat low while you have a wider arsenal to gun them down with. Or just stand on the ledge outside of town and snipe them.
** The Enclave patrolmen in ''Fallout 2'' were the bane of players everywhere. They are pretty much immune to electric damage and heavily resistant to nearly every other kind of damage due to their power armor, not to mention they have extremely high health and can effortlessly kill you in one turn even without a critical hit. Because of them, going anywhere near the coast until you've reached near endgame levels was instant DeathWish. Unlike most DemonicSpiders however, it's pretty easy to tell where they are and which places to avoid (anywhere near the coast pretty much).
** Any kind of robotic enemy will be a huge pain in the ass as well. Did you remember to invest some skill points in energy weapons, despite usually never coming across one until at least the halfway point? You better, because energy weapons and explosives are the only way to deal reliable amounts of damage. ''New Vegas'' mitigates this somewhat by offering armour piercing rounds and pulse slugs to give small gun users a fighting chance.
** ''New Vegas'' introduces Cazadores, which are giant mutant wasps with nasty venom that drains your health ''very'' quickly long after you've killed one. [[OhCrap Pray you don't encounter a swarm of the bastards]].
** The same game also introduces Nightstalkers (and both animals were created by [[EvilutionaryBiologist Dr. Borous]] at the Big Empty - which is ''[[SarcasmMode surely]]'' just an unfortunate coincidence that they both are so infuriatingly dangerous, right? [[RhetoricalQuestionBlunder ...No, it isn't]]). Nightstalkers inject poison (albeit somewhat less potent than Cazadores), deal sizable melee damage, can sometimes bypass Damage Threshold, and will attack in ''packs''. Even worse, Lily's first quest has you fighting '''invisible''' Nightstalkers.
** ''4'' continues the series' trend of showing how much [[BigCreepyCrawlies insects will still hate you]] [[AfterTheEnd after the apocalypse]] with the [[NamesToRunAwayFromReallyFast Bloodbugs]] - more specifically, the [[EliteMook Infected and Red Widow variants]]. Being that they're literally giant mosquitoes, the damn things are spindly as hell (making it hard to actually hit them), fly around the player incredibly fast, deal dismayingly high amounts of damage, have a ''hell'' of a lot more health than their normal brethren, and [[ZergRush swarm in numbers]]. They also deal high amounts of poison damage to the player and can even ''[[NauseaFuel spit your own blood]]'' [[{{Squick}} back at you]] - causing hefty amounts of {{Interface Screw}} and making it harder to actually fight them.
** In previous games, [[BigCreepyCrawlies Radscorpions]] were usually difficult enemies, but not really worthy of being called {{Demonic Spiders}} either (the Albino Radscorpions from ''Broken Steel'' and Giant Radscorpions from ''New Vegas'' notwithstanding). The Radscorpions of the Commonwealth? They beg to differ. Not only are they [[LightningBruiser deceptively fast]], Radscorpions are now positively ''huge'' (the average size of a Radscorpion is now that of the ''Giant'' Radscorpions from ''New Vegas!''), can deliver unnervingly high amounts of poison damage, are {{Made of Iron}}, and can even burrow underground so as to avoid your attacks or [[ParanoiaFuel strike out at you to catch you off guard & unawares]]. And finding ''[[FromBadToWorse Deathskull]]'' [[EliteMooks Radscorpions]] makes things particularly...[[ThisIsGonnaSuck "interesting."]]
** ''Fallout Shelter'' ''[[BeyondTheImpossible somehow]]'' makes Radroaches ([[NotMakingThisUpDisclaimer yes,]] ''[[TheGoomba Radroaches]]'') into these. As their power levels scale with the age of your Vault, they can eventually easily kill your dwellers, spread like wildfire, and overrun your vault unless you have top-tier equipment and good dweller placement.
* EarWorm:
** Galaxy News Radio in ''Fallout 3'' plays only the catchiest ([[SuspiciouslyAproposMusic and most appropriate]]) songs of the first half of the 20th Century--[[ContinuityNod including "Maybe," by The Ink Spots from ''Fallout 1'']].
** He keeps hackin’ and wackin’ and smackin’, He keeps hackin’ and wackin’ and smackin’, He keeps hackin’ and wackin’ and smackin'
** [[Theatre/SouthPacific I'm as]] [[{{Mondegreen}} corny/horny]] [[Theatre/SouthPacific as Kansas is August, I'm as normal as blueberry pie…]]
** I've got spurs that jingle jangle jangle (jingle jangle) as I go riding merrily along (jingle jangle)
** "You had plenty of money in 1922 You let other women make a fool of you. Why don't you do right? Like some other men do…"
** Biiiiiiiiiiiiig irrrrrrrronnnn, big iron!
** And the theme music for the badass ''Fallout 3'' trailer: ''I love those Deeeeeeaaar hearts, and geeeentle people, who live in myyyy hometown…'' Too bad it didn't make it into the soundtrack. Although it ''did'' [[BrickJoke come back]] for ''Fallout 4''.
** ''I'm the kinda guy, that likes to roam around...''
** "I don't want to see the woooorld on fiiiirre…"
* EnsembleDarkhorse:
** '''LIBERTY PRIME!'''
*** Also Charon. He is a ghoul with missing skin and hair but somehow still got tons of fangirls. It may be related to the whole "total obedience to whomever holds his contract" thing.
*** Freaking Fawkes from the same game. A Super Mutant who is actually one of the few nice guys in his species, wields [[GatlingGood a Gatling Laser]] in ranged combat, is a GeniusBruiser with the strength of a PhysicalGod and frequently saves your ass? [[SarcasmMode Yeah, the fandom are]] ''[[SarcasmMode really]]'' [[SarcasmMode going to hate him.]]
*** The fact that he's a reward for being a good guy doesn't hurt, either. It's like Androcles and the Lion - but this time, the lion has MoreDakka.
---> '''Fawkes:''' ''Too fun!! Ha haaa!''
** In ''Fallout 1'', Dogmeat. So much so that he reappeared in a special encounter in the sequel and had an IdenticalGrandson in ''Fallout 3''. There's also another Dogmeat in ''4'' - and he's somehow even ''more'' adorable.
** Don't forget Marcus from ''2'', as he's pretty much the reason why Fawkes is so well liked.
** [[ColdSniper Boone]]. [[MemeticBadass The guy can take out]] [[ImprobableAimingSkills enemies before you even see them.]]
*** [[CloudCuckoolander No-Bark Noonan]] and [[KnowNothingKnowItAll Mr. Fantastic]] are also both well-beloved, in part since they're pretty much the exact opposite of each other - Noonan is a hilariously crazy settler that surprisingly knows a hell of a lot ''more'' than he logically should, and Fantastic is a hilariously incompetent scientist that surprisingly knows a hell of a lot ''less'' than he logically should.
** The Brotherhood of Steel, for consistently having the best toys (aside from the Enclave.) It certainly doesn't hurt as well that their signature PoweredArmor is the face of the first and third games, and they're the ones who bring Liberty Prime to life. This even reached BreakoutCharacter status with two spinoff games being made about them.
** [[BadassLongcoat The Silver Shroud]] [[ShowWithinAShow character]] (for being one of the largest of the {{Large Ham}}s in the series) and being a hilariously awesome parody of both [[Radio/TheShadow The Shadow]] and [[ComicBook/ThePunisher The Punisher]].
*** [[EverythingSoundsSexierInFrench Curie]] has also gotten tons of love from the fandom, with many appreciating her {{Adorkable}}/{{The Pollyanna}} personality and endearingly eager {{For Science}} mentality.
** Harold, the ghoulesque mutant. While he shared some {{Foreshadowing}} and backstroy about the BigBad, visiting him isn't mandatory to the plot, but people found him humourous enough to become the only character to show up in every main game until ''VideoGame/Fallout3'', where mobility became a issue.
* EvilIsCool: A likely reason why so many people [[RootingForTheEmpire sympathize with]] [[TheEmpire the Enclave]], and also side with [[TheHorde the Legion]] and [[TheConspiracy the Institute]].
* FanficFuel: A common sub-genre of ''Fallout'' fanfiction asks the question of what happened in the parts of the US not seen in the games- what helps is that no game so far has taken place away from the East or West Coasts (except for ''Tactics'' and ''Brotherhood of Steel'', but see below for those), allowing for a lot of interpretation as to the fate of the midlands of the US.
** And, of course, like any good [=RPG=] series, there's the big question: "What happened to ''your'' character [[AndTheAdventureContinues after the story ended?"]]
* FanonDiscontinuity: Hardcore fans generally refuse to acknowledge the existence of the ("good for what it is") TacticalRPG ''Fallout Tactics: Brotherhood of Steel'' or the console hack-and-slash ''Fallout: Brotherhood of Steel''. {{Creator/Bethesda}} have adopted a similar policy, declaring ''Tactics'' BroadStrokes canon and ''Brotherhood of Steel'' CanonDiscontinuity.
* IAmNotShazam: The Vault Boy is '''not''' called [=PipBoy=]. Even the developers of ''Fallout Tactics'' fell into that. Vault Boy is the blond, wavy haired man in the blue jumpsuit, and [=PipBoy=] is the redhead pixie in the yellow and orange spacesuit, visible on the [=PipBoy=] itself in the first two games, in case you were wondering.
** And his name is '''not''' Music/FallOutBoy either, despite his face being prominent in all ''Fallout'' games.
* GameBreaker:
** The Sniper perk in the first two games. With high luck, almost every hit will be a critical hit ('''always''' with a Luck of 10!). Combine with shots to the eye and a decently powerful weapon and only the strongest enemies will survive more than one round of combat.
** Jinxed with Luck 10. Your obscene luck (usually) counteracts the negative effects of the perk, but your enemies will constantly be hitting themselves, each other and breaking their guns and limbs on a regular basis. Although this means that the rest of your party become a lot less helpful and much more dangerous to you.
** Some of the special encounters that you come across in the Wasteland in 1 and 2. The crashed Nuka-Cola truck which gives you over 10,000 caps at a high enough Luck level, the Alien Blaster, the Solar Scorcher, the Red Ryder LE BB Gun, the Holy Hand Grenade, the Monument Head and the Star Trek Hypos.
** ''Mothership Zeta'' DLC. After finishing, you end up with a huge amount of super healing stuff, overpowered weapons and ammo for those weapons. Good bye scavenging and weapon maintenance, hello Alien Desintegrator!
*** Finishing ''Operation: Anchorage'' will unlock a chamber filled to the brim with awesome weaponry, plus two game breaking suits of armor. The Chinese Stealth Suit always gives you 100% stealth (and allows you through a glitch to wear all the clothing you have in your inventory at once, giving multiple armor and stat boosts at once), and the Winterized Power Armor, which never degrades and allows you to circumvent the usual restrictions to wearing Power Armor before completing the required story mission.
** ''Dead Money'' DLC supplies the Courier with the Holorifle, which is basically a ''[[ShotgunsAreJustBetter shotgun]]'' that fires devastating {{Hard Light}} "cubes" at your enemies. If you have a high enough Energy Weapons skill and enough Microfusion Cells to spare, than the game might as well role credits right there.
** ''Fallout 4'' adds in the Legendary system, which is intended to provide buffs for weapons and armor dropped by [[ExactlyWhatItSaysOnTheTin Legendary]] [[EliteMook opponents]]. However, certain buffs on some items become this if the {{Random Number God}} loves you enough. For example, getting a [[MoreDakka Legendary Minigun]] with the ''[[StuffBlowingUp Explosive]]'' effect will turn even the most dangerous DemonicSpiders into mere [[TheGoomba Goombas]] before your might...[[CripplingOverspecialization as long as you have enough ammo, of course]].
* GenerationalSaga: Never explicitly stated, but some options on [[MultipleChoicePast the Courier's history]][[note]]Especially with the ''Honest Hearts'' DLC[[/note]] allow the interpretation that s/he's descended from the Arroyo tribe. In full effect for Fallout 1 and 2, as the Chosen One is the Vault Dweller's grandchild.
* GoddamnedBats:
** Geckos in ''Fallout 2'', especially around Trapper Town/Klamath. *HeadDesk*
** Bloatflies and pretty much every other insect in ''Fallout 3'', unless you have the Entomologist perk.
* GoodBadBugs:
** Sometimes in ''Fallout 1'', the aftermath of [[spoiler:the slaughter of the Ghouls at Necropolis]] will sometimes leave the dead bodies standing upright in the first frame of their "explosive death", as if they're mindless flesh statues. It's very creepy when you're wandering around looting them.
** With ''Broken Steel'' installed, Three Dog will talk about [[spoiler:the Enclave's defeat at the Jefferson Memorial]] ''even if you haven't gotten that far in-story''.
*** It's possible for Enclave Radio to glitch out after Raven Rock is destroyed - it will stay on the air, but will now consist solely of an endless loop of President Eden saying [[MadnessMantra "...stand now, at the precipice..."]]. It actually comes across as [[NightmareFuel really creepy]] instead of the annoyance that one would expect it to be.
** Similar to the ''Fallout 1'' example, ''New Vegas'' has a room in Gommorah [[spoiler:with a dead hooker in it that you visit for a quest. Sometimes when you enter she'll be standing and acting as a living NPC, even trying to seduce you, while you examine her for rigor mortis.]]
** In ''4'', Dogmeat will still be able to fetch items held in locked containers. This means that the Sole Survivor can simply return to Vault 111 with Dogmeat, go to the Overseer's office and ask him to fetch, and he'll bring you back [[DiskOneNuke the Cryolator]]. With him even [[CrowningMomentOfFunny adorably carrying it in his mouth while he follows you around]] and wags his tail.
* HilariousInHindsight: A character in combat armor around the Boneyard Library (''Fallout 1'') wears a pin reading "I'm Christopher and you're meat". Chris Avellone joined production for ''Fallout 2'', and has become the name (aside from ''maybe'' Todd Howard after Bethesda took over, and even then that's a big "maybe") most associated with the franchise.
* MisaimedFandom: Though the Legion burns down towns regularly (inhabitants included) and the Enclave was more or less written as "Futuristic Nazis", both have large fan followings among the Fallout community, partly because many see them as [[WellIntentionedExtremist noble in their end goals]].
* NarmCharm: ''Fallout'' as a whole is '''really''' good at this. Considering how the series is practically ''made'' of {{Bathos}} and it's telling dark, post-apocalyptic stories that're all set after a nuclear war destroyed a world inhabited by a ([[CrapSaccharineWorld supposedly]]) cheery ''[[Series/LeaveItToBeaver Leave It to Beaver]]''-style 1950s U.S.A., it's been doing this for quite a while and is '''excellent''' at making something silly come across as serious.
** A good example of this trope in action is with [[TheEmpire Caesar's Legion]] from ''New Vegas''. The Legion [[FantasyCounterpartCulture deliberately stylizes itself after]] the Roman Empire (albeit with a more [[FuturePrimitive tribal]] and ''Mad Max''-influenced aesthetic), and at first comes across as cartoonishly villainous to an almost comedic degree. Virtually all of them are {{Card Carrying Villain}}s who can't stop talking about their love of both [[RapeIsASpecialKindOfEvil rape]] and brutal [[YouWillBeAssimilated cultural assimilation]] {{For the Evulz}}, and look utterly absurd in the bizarre ''lorica'' uniforms they usually wear (most of which come from Pre-War ''football padding''). However, they're also [[BewareTheSillyOnes surprisingly competent]], have genuinely intelligent leaders with [[VisionaryVillain grandiose ideas for the future]], and the game ''also'' takes enough time to show how [[CrapsackWorld nightmarishly hellish it is to live under their control]] (like with the slave Siri at the Fort). All of this combined together makes the Legion come across as a '''[[NightmareFuelStationAttendant terrifying]]''' force of destruction and chaos instead of the [[JokeCharacter joke faction]] they would normally be seen as.
** Unlike previous games, ''4'' doesn't have [[TalkingIsAFreeAction the rest of the world freeze in place]] when the Sole Survivor converses with other characters. This results in scenes where the Sole Survivor and their companion [[CasualDangerDialogue have deep conversations]] [[FunnyBackgroundEvent while the pieces of a destroyed Vertibird fall to Earth around them]]. However, this doesn't stop the talks with companions (along with other conversations) from being very [[CrowningMomentOfHeartwarming touching]], [[TearJerker heartbreaking]], interesting, [[HiddenDepths surprisingly deep]], and even ''deliberately'' [[CrowningMomentOfFunny funny]].
* NightmareFuel: Enough to fill [[NightmareFuel/{{Fallout}} a dedicated page]].
* ParanoiaFuel: Sometimes, your settlements can get infiltrated by disguised Institute Synths. There's no knowing about them until they start killing your population slowly...
* SailorEarth: Want to make an original character who ''also'' grew up in a Vault? Easy, just make up a number between 001 and 999 and add the word "Vault" in front of it!
* SpiritualLicensee: The games made during Bethesda's run (''Fallout 3'', ''Fallout: New Vegas'', and ''Fallout 4'') could easily double as RPG spin-offs of the ''Franchise/MadMax'' and ''Franchise/{{Terminator}}'' series. Fittingly enough, some of Bethesda's earliest video games were based on the latter franchise. In fact, ''Fallout 4'' actually plays like a good [[JustForFun/XMeetsY combination]] of ''Fallout'', ''[[Literature/DoAndroidsDreamOfElectricSheep Do Androids Dream Of Electric Sheep?]]'' and ''[[ComicStrip/BuckRogers Buck Rogers]]''.
* TakeThat: At those who idealize the past, and wish they born in a time other than the period they live in now. Applies to the 50's in particular.
* UncannyValley: The characters from all of the games, to some degree. God bless Black Isle/Obsidian and Bethesda, they all ''try'' their hardest to make the characters look realistic, but this issue still crops up in each game.
** TheMaster from the first game is most definitely an intentional version, [[NightmareFuel and a damn creepy one as well.]]
*** Infant Shaun and Mama Murphy are unfortunately unintentional examples. However, [[LackOfEmpathy Institute]] [[SuperSoldier Coursers]] are another ''deliberate'' example, as their awkward facial animations and intentionally monotone delivery makes them come across as something only doing an ''impression'' of acting human...and not really bothering to put that much effort into it anyway.