I know that there is posts for making vault ideas already, but i wanted to list some of my own
comment on them if you want and please suggest some ideas for new ones.

Background to my Vaults

One of the great minds of vault-tec is Alexander Markusburg, who created a lot more gecks then vault-tec ever said they made. Including 5 'Super Gecks', powerful enough to make the others Alexander made worthless. Afraid and worried for the world, he went and with numerous allies created many more vaults all over the world, known as the A-G vaults. He placed his super gecks in 5 special vaults under 5 certain cities. Soon he went into his private vault under the Berlin wall, known as the Berlin Vault. Inside is him, who created tons of bodies for himself and froze his old one, His head scientists who also have a few clone bodies, and numerous people brought in to help test his ideas, creations, and more. However one more thing,....due to the idea of magic from the dunwich locations in fallout, he was both a scientist, and a mage.
Note: Alexander is not op because, well....you could disable all of his clones and then kill him easily so....yea, he is still human, just a smart one who made things he couldn't trust in anyone's hands. Also unlike Vault Tec, Alexander didn't want to experiment too much, and thus only the F and G vaults are the ones where more experiments take place, due how they were made by some scientists that joined him from Vault Tec, not trusting them either.
Note 2: The Gun Runners are in a sense a company in the wasteland, thus if there is a base, and there is traders, you can still get companies.
Note 3: Vaults A-E all are mostly harmless, with more less chaotic situations and experiments
Note 4: I may not fit all of them here, so the most i will go to is to the 90th or 100th vault
Note 5: There is a lot of character i will make for each vault, if you want a character to be featured in one of the A-G vaults say so
Note 6: A mini geck is bascally a smaller portable geck with a few strong yet hard to recharge charges, once it's all used up, it breaks down.

The 5 Super Geck Vaults

• The White House Vault: A vault under the white house in Washington DC. A secret from even the president, containing a super geck, a few other extra gecks, and tons of instructions, recreations of World Heritage sites and american locations, Armories, food storage, labs meant for the geck, 3 reactors, and a hall of Presidents and other Disney world like locations. The only person there is a Mr. Handy programmed to help who ever came learn how to control the super geck, he also is much stronger then other Mr. Handys.
• The Great New York Vault: A vault under the statue of liberty in New York City. Filled with more labs, the super geck, other world heritage site locations recreated, libraries, 5 armories, some reactors, and more. Inside their lives a cult of female synths who all see the statue of liberty as a goddess, a powerful one. They are kind however some left and became the New York City cult known as the Daughters of The Lady. There is also of cruse instructions, and also some arcane rooms, meant for more.....mystical uses. Also it has a church in it, 2 to be correct, one for the synths, the other, for Christians.
• The Rome Vault: A vault under the Roman Colosseum in rome. Like the others it has several rooms relating to gecks, LOTS of weapons, food, a few churchs, hertiage sites, instructions, The Super Geck, etc. However there is more, such as a room like the president's hall but with popes. The Oven of Eden, a machine that creates any food afther a card is scanned by it. The Arcaum of The New Templar, a massive church like room with tons of books and various labs, mystical rooms, and some rooms with Knight stuff. Finally, the Room of Culture, filled with all kinds of culture, with instructions on how to bring them back, as well as fake and fantasy ones, and few based on 60's to 2000's culture. The vault only has synths based on roman warriors and characters, as well as a large Dragon bot that tells people how to create fantasy creatures with the Super Geck.
• The Saint Petersburg Vault: A vault under the Winter Palace in St. Petersburg. It has it's Super Geck and various rooms that are common to the other mega vaults expect for a few. A room with all Tsars and Rulers of The Russian Empire, A series of rooms based on seasons, A terraforming test room with ideas on how to terra form some planets if earth got too bad, and a Room with every piece of Mythologies and all fantasy novels and comics. Another room there is a massive comic book room and a room with a punching bag with Stalin's face on it. Inside the only things there are 5 Synths styled after Russian Mythical Heros and 2 synth ladies in a strange tea room talking about some ideas based on the UK and Scandinavia coming together to defeat Russia.
• The Tokyo Vault: A vault under Tokyo, in you guess it, Japan. It has all the commons of the other vaults, and like all the others has unique rooms to it. All are based on Japan, Asia, Oceania, and Recreating the Republic of China. One of the more note worthy rooms is a massive room filled with copies of every movie, video game, anime, tv show, and manga in the world. The only robot here is a kind AI called Ms. Nature-San, who controls a Synth to water the peaceful greenhouse within the vault.

The A Vaults (Scattered all over the world, and Alexander Jokes he placed one on the moon)

• A1: Located under New York City, the vault is divided into 5 areas. The Blue Section, The Red Section, The Yellow Section, The Green Section, and the Center White section. Each area had special vault uniforms for them and petting zoos for animals. They had teams that would fight in the Center's Sports Arena, in 3 different sports, Baseball, Soccer, and Foot Ball. Each section has a different team for each, and the petting zoo has tamed animals of each team with in. The Vault is peaceful and is run by a council of 5 overseers, who are elected each year, where the main person meant to keep peace, is the overseer in white. It also has 5 Goliath droids who help defend the vault from attackers. Today it is a part of the Growing New New York City nation started by Vault A2.
• A2: A vault filled with only scientists, and a massive library of all of the books on earth, even of religions, and one occult book of a made up goat based monster made by Alexander. Everyone there is very smart and raised to value the body and to grow the mind. However the outcasts of the vault, who had trouble keeping up with knowledge due to forgetful mindsets had found the occult book, and started a cult known as The Goatmen. Sadly when they tried to take over the smarter side of the vault created powerful robots that chased them out. The cult is still around but now the vault has created the New New York City nation with towns, and have worked to rebuild the city.
• A3: A vault south of a little town in Alberta, Canada. This vault was made to have numerous cloth and armor making machines in it, as well as a few forges, and was filled with people who were either blacksmiths or tailors in some way. The vault's jumpsuits were so bad looking in design that it lead to the tailors making tons of outfits while the blacksmiths made both armor and weapons to keep them selves busy. Soon when the vault opened the Blacksmiths stayed in the vault turning it into Samson Works Co., named after the biblical judge. The tailors went to create a settlement that had the base of the new Spider's Silk Clothing Inc. another new business for the wasteland. With new towns and settlement cropping up, traders went to these two businesses and bought items from them sold them and gave them money back. The one issue is that the blacksmiths and tailors were always uneven at any point in time, only a few times were they equal in number.
• A4: A vault near New Mexico city in New Mexico. This vault had a total of 3 areas in the vault that were simulation rooms, where the dwellers were given orders to have any kids believe this was real, and had to play along to the point of forgetting that it was fake. Only the Overseer and scientists knew the truth and keep the vault running in the background, each room having set up a special medical response incase any death had nearly come. The 1st of the rooms was the Old Sliver West, a western styled one that takes place during a sliver rush, a Mexican revolution, and the arrival of Gatling Guns to the west. The 2nd of the rooms was the Good Old Days~, a town like the simulation of tranquility lane in the sense that it's greatly like a 50's sitcom place and gives people nostalgia, with a sense of a war going on in the far far east in China, that could lead to the return of the republic. The last room was the Kingdom of Davoman, a fantasy and medieval land with 3 main rich families and everyone else being soldiers or just workers in various jobs around, with synths and robots acting as monsters and enemy kingdom soldiers. The main issue with the vault is how when found the simulation is still running, the overseer's family worried about things, due to how many of the others who knew the truth died. This leads to were the vault now having a total of 4 or so generations leading many people to not know the truth, but the scientists and overseer's family.
• A5-a and A5-b: A pair vaults in North Eastern Brazil. The a section was filled with only women, while the b side only men. The two vaults had only two ways to get to each other, the reactor rooms or a single pair of doors that only the overseers could unlock. The two vaults each month had 5 days or so where the vaults opened up and the men and woman got together. Most of the time on some of these days there would be pairs of men and women who....well....made out and a lot of times had 'intercourse'. This led to love slowly fadeing away, between the two genders, only the overseers were around each other enough to know what love was. Whoever finds the vaults teaches the two about what real love is, leading to some going off in various groups to build relationships and love while some stayed at the vault, which was eventually abandoned when the last pair got together and left.
• A6: A vault about 12 miles north east of Las Vegas Nevada, or in this case New Vegas. This vault was filled with mechanics and various new types of Mr. Handies, Ms. Nannies, Protectrons, and other bot types. The mechanics would creation new robots based on the tons of parts and spare supplies around the vault, which had several garages with in for the robots. Some of them broke off, and made a large garage nearby the vault called 'Red Hot Hot Rods' Garage, where they made cars and other modes of transportation. The ones that stayed turned the vault and the area around it into a city, like Vault 8. Known as The Roboyard, a massive city of robots, mechanics, and more stood to rival new Vegas, and thus many securtrons can be found in the city, reprogrammed by the mechanics there.
• A7: A vault under a small city in Queensland Australia. This vault was not only filled with 1040 Australians and Aboriginals, but also 40 Dogs, 40 cats, 67 goldfish, and 55 koi. The vault's Scientists tested with the dogs, cats, and fish, using the vault's bio dome with in it to test them, and soon created several new speices of Dogs, Cats, and Goldfish/Koi. However due to the cloneing used to help create the new speices, the animals were started to outnumber the humans, so the scientists put the vault into 'GREEN HOUSE' mode which made the bio sphere grow it's self out and transform the vault into a underground jungle and lake, with the large hill it was built into's top to crack open like a crater showing the massive paradise of dogs, cats, and fish below. Now a days more animals found their way in and the animals either eat plants (the fish do this) or the Rats, Wild Pigs, and wild chickens. The People who left live nearby in a town called Merrybrook, as they live by several brooks.
• A8: A vault in North most Scotland, noted for it's mostly isolated location, until 500 people flocked there to live in the vault. This vault was made to have it to were the scientists tested Brain science on humans who wanted to, most humans that did were made into Synth Cyborgs, which most were ok with. The Vault soon become free to open 100 years after the bombs droped, however...like a certain other vault, the 500 people where split into what to do now. The 5 Groups were, The New Scots, People who wanted to rebuild scotland and make it a kingdom greater then the Uk, The Loyal Brits, English and Scots who wanted to help rebuild the UK and grow it into europe, The White Knights, a group of various Christians and Jews who wanted to help people, and thus went on to make Knight based armors and weapons to become the saviors of Europe. The last 2 were the Spring Heeled Gang, a group of thugs and punks who became a raider like group and based themselves in a nearby Mill, turning it into a factory, and The Vault Loyalists, who simply stayed in the vault to keep working on enchanceing humans and working on the future of brain science. Most Synth-Human Hybrids stayed at the vault with a chunk of scientists.
• A9: A vault in North eastern New Mexico, USA. The vault is made with an AI that has made 100,000+ Radio Stations of all kinds. The People in the vault are very peaceful and many of theme style themselves after their favorite radio station, leading to Music Genres creating cultures in the vault. The AI also seeked to make many items based on the more story radio stations and such, leading to suits and collectables being pumped out. When the doors opened the Vault was uncovered by a swarm of wandering Builders known as the 'Hammer 99'ers' who helped turn old Vault A9 into a capital building for a new city with the wandering group's Geck working with this vault's geck. When the Swarm of builders left, the Vault dwellers went and made a city of Radio Stations, Music, and so many cultures and mindsets, called Radio Tower City, noted for the massive radio tower in the city's center. They also walled off the city for protection, but the radio signals travel very far, due to the AI's love for people to hear music, stories, and ideas.
• A10:

The B Vaults (Mostly North America, and the Caribbean)

• B1: A vault under a large Donut Cafe in Seattle, Washington. This vault was filled with mostly Bakers and gardeners. The Vault was filled with tons of sweet making machines and ovens, and a massive garden filled with the ingredients required for it. Over time, the craft of sweets, Donuts, Chocolate, Coffee, Tea, and even Soda all became mastered by the people of the vault. They soon left and make a fortress of the Donut Cafe and turned it into the headquarters of the Happy Sweets Bakery and Cafe business. As well as a home for the former vault Dwellers. Most people have build a settlement around here called Donutberg, after the town's favorite pastry. The vault was to test if time would make certain food items more loved then others as well as a way to keep tons of snack foods alive.
• B2: A vault in northern Nevada, not too far from the Mojave. This vault was kind of like Vault 21 from New Vegas, but instead of gambling, every major choice for the Vault was settled on Pool Games and Air Hockey. Overtime the dwellers grew to love the simple vault life, but soon the time came to leave and make a new town. The Overseer was a vert ambitious man, and bet that when they leave they could make their own Reno, their own Vegas. It was staked with the voice of the other dwellers, and for the overseer, this meant the future. However, he won and they left, and used their smaller, less powerful Mini-Geck to help build the city. The City was called Tamdon, City of Games. The city became nearly as popular as New Vegas, as the city had several arcades, casinos, and tons of restaurants and hotels.

The C Vaults (Mostly in Asia and Oceania)

• C1:

The D Vaults (Mostly in South and Centural America as well as Africa and the Middle East)

• D1: A vault located in Cairo Egypt, a little near the city's outer areas. This vault is meant to keep Egyptian Culture and Islam alive. However overtime, some less kind Muslims and Egyptian Pagans had a dispute that divided the large vault in two. One side contains mostly Muslims, with a couple of Christians and Jews, who all get along well, the Christians have a small church as do the Jews with the synagogue. The Muslims have a large Mosque in their side of the vault and tend to be peaceful, unless it's with the Pagans. The Pagans have styled their side after classical Egyptian styles, patterns, art, and more and worship old Egyptian Gods and Goddesses. They do however have a roman group that left a few years after the vault doors unlocked, and went to start fixing the city. Although they don't all get a long, the Muslims, Christians, Jews, Pagans, and Roman styled people all left and started building a large settlement in the ruins of Cairo. The town is known as simply Neo Cairo, and is well loved by the people who live there. Currently the Town's mayor ending up being a Christian from the growing group of said Christians who wants to keep the peace between all the groups. The vault was noted for 5 Unique suits of Power Armor that were based on the following Egyptian Gods, Ra, Anubis, Set, Horus, and Bastet.
• D2: (Idea is Octson's on Discord) This Brazilian vault idea of Octson's would be big but half of it became inhabitable with that inhabitable side having humanoid zombie like monsters with baby Limbs around their body. How these monsters were there in the first place is because of a series of experiments the vault has of artificial pregnancy with the intent of using the serum to recover the Brazilian population easily. The serum for artificial pregnancy was supposed to work on both genders and when the experiments start it shows that it dose work on women but the men that bravely participated in the experiment? They slowly died and came back mutated because of the different sex organs. This would be located in Rio, and is near a small town made by survivors near it, of Scientists who wish to spread the working pregnancy medicine to other women in the world, and is strongly trying to keep the women alive at all costs.
• D3: (Octson's idea) This vault is in Kenya, 53 miles from the largest city in Kenya. Well Octson thinks Africa wouldn't look drastically different in fallout due to it mostly being a desert. But he thinks the radiation would've made the place a little cold along with mutating some of the animals. What's the African vaults solution? Mix lion/lioness DNA with the inhabitants of the vault so they could be able to survive the outside cold. This results in the vault being inhabited by anthro lion/lionesses, they still have 5 fingers and toes along with stronger immunity to some sicknesses but they are now vulnerable to lion based sicknesses, they are a bit physically stronger then regular humans but they have been decided into 3 groups, People who want a Kenyan republic, people who want a communist union, and a Stratocray made from former guards and soldiers. The Groups split off into 3 large settlements. New Nairobi, for the republicans, Mji Mkuu Mpya, for the communists, and Upanga, for the Stratocrats. Each group has different ways to rebuild Kenya, with the Republicans trying to also fix the environment and trying to help Nomads from the north (all the way to europe). The communists are trying to contact china to try to get help to build a new Communist union, and want to destory and conquer the other groups. The Stratocrats simply want a world were the Military rules but have a alliance with the democrats to help beat the Commies.

The E Vaults (Mostly in Europe)

• E1: A vault apart of a series of vaults in Europe, this one being seen and located in Eastern Greece near the boarder of Turkey. This vault was made to be filled with tons of Greek culture and even had many weapons, power armor suits, and items made in Greek mythology and cultural styles. The inside even has columns, fig farms, and the guards wear Greek like armor. In this vault, instead of a overseer, there was a council called Olympus, who lived in a large office with rooms themed after each member. The council by the time the vault opened became the typical rulers of these people who grew so used to it, they saw Greek culture and style as the future. They went to create New Athens a massive mega city in Europe. Still ruled by a council and making various more medieval/middle ages in terms of weapons, like swords, bows and arrows, etc. They do still use high tech, yet have their own versions of it styled in a very ancient Greece or Greek mythology fashion. Such as plasma rifles called Zeus Rifles, and shooting blue more electric bolts of plasma instead of the normal green. The Vault is current being turned into a Museum of Greece's history, as well as lifestyles of New Greece. The vault also houses many advanced tech, which have been used to make more normal versions of mutated animals, it being called a Geck Lite, a weak yet very useful geck.

The F Vaults (aka when Alexander's vaults ended, and his fellow scientists vaults started afther these, alexander pulled the plug fully on vault building but 32 more scientists still went out and made some. All are near the water)

• F1: A vault near the coast of Finland, noted for part of it being under water. This vault was set up to contain 400 humans, and multiple finish animals. The dwellers were told to treat everyone with respect, but also to obey the vault's 'Grandfather' with out question. The Grandfather overtime had the people become more in touch with finish culture and history, some left the vault over time and made the small settlement of New Karsa, a very viking styled town that is filled with both christians, and pagans. However inside, the Grandfather became more insane, like a certain overseer from Fallout 3. He soon started training some of the animals to be his guard, the others were protected by him as he soon dawned a viking styled power armor he made over the years. Soon he convince multiple people to follow him, and then the vault dwellers were killed by Grandfather 'Yuro' as he called himself now, his animals, and his followers. The ones who lived sealed the vault and escaped to New Karsa. They used some tech to build a few turrets incase Yuro ever got out.
• F2: Located on the northern coast of Finland, 500 miles from Vault F3. Unlike F1, the vault had more of a mix of people instead of mostly Finnish people. The Vault had a special FEV strain known as the 'YFEV' aka the Yeti Forced Evolutionary virus. Over time it was pumped to everyone in the vault expect for the scientists. The virus kept genders and sexes unlike the FEV, and made both special in different ways. The males can take a lot more damage and are a bit faster, but the females, although shorter, are immune to more sicknesses and tend to have much higher stamina. Soon after the pumping stopped, the Yetis were tricked into allowing the scientists to control them, creating the Finnish Yeti Horde controlled by the scientists until they were killed by Yuro, then the yetis made different tribes based on what they though was best.

The G Vaults (only 32, made in the last few years before the bombs started falling across the world, made by the Lucky 32 scientists, as each made one of the vaults. All are under a existing building)

• G1: The Vault's location is right under Google Headquarters. A vault like the one in Van Buren, where it's controled by an AI. However, the vault is massive and divided into 10 sections based on the AI there who brainwash and change the dwellers who end up in their part of the vault and make sure any children born in their areas remain loyal to the AI. Made by code name Dr. Seven Clovers, to test how many times humans can be brainwashes before they break and try to die from the insanity of not knowing who they really are. The AI include Duchess Sliver, who is a fancy and somewhat kind woman who picks favorites and has the woman try to look like famous stars and have the men be 'butlers', which lead to men eventuality being seen as slaves in this section, only there to make more daughters by the time the player find them. The next AI is a much kinder AI called Mother Maria, personaitly wise she is kind of like Curie, in how she is kind, curious, and scientific, however she loves to test with her humans and treats them like kids, but knows her bountries with some. She made them mentally think all the tests are good, even if they get mutated. The next AI is a Patriotic AI known as President John Freedom, a Uncle Sam like figure who wants all the people there to be soldiers and strong patriots, basically the humans there are exteremly strong hyper patriots, and have grown to super mutant size. A creepier AI know as Der Nachtmensch, a AI who loves horror and thus makes his dwellers love horror movies, giving them kind yet very Morbid mindsets, however they hate it when people insult them, and hate anything that looks like one of John's Hyper Patriots. Chairman Mako is the next AI and is a Socialist-Communist based mind that has convinced everyone that they are either Australian or Chinese, and that America has fallen in to the USSR's hands. Warqueen Athena the next AI is a AI who thinks she is the greek goddess, her part of the vault is mostly greek styled and everyone man and woman dresses like so, and think they are in a underground town under their great kingdom of Greece. The Lion the one AI who took further steps in his transformations, making them all infused with African animal DNA, creating human animal hybrids, as the AI was of a Lion Man who wanted to bring a new Race, His section is sealed from the others and has 3 bio domes. Prime Minster Moonsworth a kind old britsh AI who wants to keep things prim and proper, and has his dwellers think that they are citizens of a Underground Mega London, which said Mega London he wishes to escape the vault to build. Viviana a Spanish lady with a kind heart but a lot of sass in her AI chip, she had her citizens become suit, dress, and cloth loving guys and gals, but also made them a little on the rage side of things. Saint Bolts a AI who is religious and meant to be a 'In Case the Catholics are all dead and we need a new pope AI' who made all of his dwellers become Zealots in Catholic Christianity, but they love peace and will fight for their religion, The Pope wishes for some of the other AIs to leave due to how they threaten his people.
• G2: A vault located in The Sunset Sarsaparilla Factory in the Mojave. The vault was filled with machines and plants to make sunset sarsaparilla, and lots of it. Simply when placed in slowly the vault workers mostly worked on making the drink, and they kept doing it. This was because the Overseer, over time was hypnotizing them to never stop working on the sarsaparilla, giving them few hours of sleep a day. He also killed anyone who didn't work for him, due to his own person securtrons his vault came with. He was hell bent to keep the drink alive, and no one was going to stop him, ever.