The theme of deception is quite common. Impostors are all about deceiving the crewmates in the game, and this is carried over into the fanfics. Fanfics also often have the theme of isolation, as the crewmates might start to feel alone and not trust anyone when they suspect there are impostors among them.
One common theme is mystery. Since the game is about finding the impostors, fanfics often revolve around solving the mystery of who the impostors are. Another theme is survival, as the crewmates need to survive the attacks of the impostors.
Betrayal is also a big one. The imposters are betraying the trust of the crewmates. They pretend to be part of the team but are actually there to kill. Like when an imposter kills a crewmate who thought they were friends and were working together on tasks.
A common theme is power escalation. Naruto becomes extremely powerful, like a god, and this changes how he interacts with the world. Another theme is responsibility. With great power comes great responsibility, and he has to figure out how to use his god - like abilities for the good of the ninja world.
Another theme is identity exploration. The characters in 'the wolf among us' already have complex identities, and when they cross over, they may question who they are even more. They might be forced to adapt to new rules and cultures, and this can lead to a deep exploration of their true selves. For example, if they cross into a world where honesty is highly prized, the lying and conniving nature of some of the game's characters would be put to the test.
One common theme is friendship. The characters in Voltron are from different backgrounds and they have to learn to trust and be friends, which is a big part of 'becoming us'.
One common theme is survival. Just like in The Last of Us, the characters often have to fight for their lives in a harsh environment. And Naruto characters bring their own skills to aid in this survival.
Well, often there's the theme of discovery. In 'Tesser a Dragon Among Us Fanfiction', the characters may be constantly discovering new things about the dragons, like their abilities, their history, and their place in the world. Also, the theme of survival is likely. With dragons around, which can be dangerous, the characters have to find ways to survive, whether it's by hiding, fighting, or making peace with them.
A common theme in such fanfiction could be the exploration of different forms of magic. Gods would likely bring with them magic that is far more powerful and different from what the wizards are used to. There could also be a theme of alliances and rivalries. Some wizards might side with certain gods, while others oppose them. And finally, the theme of the balance of power. How does the wizarding world maintain its balance when these all - powerful gods are present? It could lead to a struggle for power and control within the story.
Some common themes could be Naruto characters adapting to the US Army's discipline. For example, Naruto's determination in the Naruto world might translate to his eagerness to succeed in military training. Another theme could be teamwork. In Naruto, teamwork among the ninja squads is crucial, and in a US Army - Naruto fanfic, it could be about how Naruto and his friends from the series work together with US Army soldiers on missions. Also, there might be a theme of cultural clash, as the ninja culture from Naruto meets the military culture of the US Army.
In 'asoif us navy destroyer fanfic', a common theme could be exploration. The characters from 'asoif' might be intrigued by the advanced technology and capabilities of the US Navy destroyer and embark on a journey of discovery. This could involve learning about modern navigation, weaponry, and communication systems. Also, themes of power and leadership might emerge. The leaders in 'asoif' may compare and contrast their leadership styles with those of the naval officers on the destroyer, and there could be a struggle for authority or a mutual respect for each other's skills in different areas.
A common theme is the struggle for power. Given the 'Gods Among Us' aspect, there are often characters vying for control or trying to use their powers in different ways. Another theme is morality. With the Injustice storyline's darker take on heroism, fanfictions usually explore how characters deal with moral dilemmas.