This is a mod that I have in my Skyrim game: https://www.nexusmods.com/skyrim/mods/65946
It is Vault 101 in the land of Skyrim. It is inspired by the Fallout games but there is no experiment. Rather it is an abandoned Dwemer shelter turned into a Dragon Shelter by scared citizens of Skyrim. You are given a spot in the vault and it contains many references to Fallout.
It seems to be able to act as its own hold as there are Vault guards and a jail to detain you should you cause trouble in the vault. I personally like the classroom area. There is a very funny version of the G.O.A.T. Test changed to match the world of Skyrim but still remains almost identical to the original.
There are also crafting stations for you use and some companions for you to recruit.
Mods, I don't know if this is the right board to post this in. If it is not, then go ahead and move this thread to the correct board.
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Please don't vote for me to be overseer. Even though I have experience with internet trolls, I would still be unqualified for the position. Vote someone else. (This isn't Vault 11 right?)