Another theme is friendship or partnership. Many fanfictions focus on how vault boy and vault girl work together. They rely on each other's skills and strengths. In some stories, their relationship evolves from simple comradeship to a deeper, more meaningful bond over time.
Well, 'vault 68 fanfiction' might revolve around the concept of a vault. It could be that in the original source material, this vault has certain unique features, like unique inhabitants, strange experiments, or a special purpose. Fanfiction writers would then take these elements and create their own stories. For example, they could write about a group of survivors who discover vault 68 and all the mysteries and challenges they face inside it. It could also be a place full of advanced technology that the characters in the fanfiction either have to protect or try to use to their advantage.
The thumb represents positive actions or results. For example, in the game when you see Vault Boy with his thumb up, it often means you've done something good, like completed a task successfully.
Vault 11 was a social experiment. The vault's inhabitants were forced to sacrifice one of their own each year. Eventually, they rebelled against this cruel system. They couldn't bear the inhumane practice of choosing someone to die annually. This led to a breakdown in the vault's original structure and order.
Well, the 'cait vault 95 fanfic' might be a creative work that combines the elements of Cait and Vault 95. Maybe it's about Cait's adventures in or around Vault 95. It could involve her exploring the vault, meeting new characters there, or dealing with some sort of mystery or danger that is related to Vault 95. Since it's a fanfic, it's the author's own interpretation and expansion of the existing lore related to these elements.
Vault 21 was a social experiment vault. It was centered around a casino. The people there had a unique society based on gambling and entertainment. In the game, the player can interact with the remnants of this vault society and learn about their past and how they functioned.
I'm not sure specifically which 'the vault' you are referring to. There could be many things named 'the vault'. It might be a vault in a bank, a secret vault in a story, or something else. Without more context, it's hard to tell the real story.