One popular theme is exploring the backstories of the game's characters. For example, delving into Quote's life before he became the hero we know in the game. Another theme could be alternate universes, where the events in Cave Story take a completely different turn. Maybe in one alternate universe, the Mimiga are the dominant species instead of being oppressed. Also, there are fanfictions that focus on the relationships between characters, like the friendship between Curly Brace and Quote.
One possible theme could be exploration. If it's about the first cave, the idea of venturing into the unknown is a strong theme.
Another theme is probably friendship. Curly is likely to form friendships in fanfiction, and Cave Story quotes about comradeship can be used to strengthen this theme. For example, a quote about standing by your friends in tough times can be incorporated into a story where Curly and her friends are in a difficult situation. Also, the theme of self - discovery might be present. As Curly goes through different situations in fanfiction, quotes that touch on the characters' growth in the original game can be relevant.
A great example is 'The Deepest Cave'. In this novel, the cave becomes a place of nightmares. As the protagonists explore, they discover ancient secrets and face off against malevolent forces that lurk in the shadows of the cave. The author does a wonderful job of creating a sense of dread that keeps readers on the edge of their seats.
One popular theme is 'what if' scenarios. For example, what if the princess had a different upbringing. Another is the modern - day adaptation of princess stories, where princesses are placed in a contemporary world with modern technology and social issues. And of course, the love - centered themes are always popular, like the princess falling in love with an unexpected character.
One popular theme is 'opposites attract'. For example, a shy bookworm falling in love with a popular jock. Another is 'forbidden love', like a relationship between characters from feuding families. And 'reunion love' is also common, where two characters who were separated for a long time find their way back to each other.
One popular theme is romance. Fans often create stories where they pair members of The 1975 in different romantic scenarios. Another theme could be the behind - the - scenes life of the band. It gives fans a chance to imagine what goes on during tours, in the studio, etc. Also, there are fanfictions that focus on the growth of the band from their early days to their current status.
I'm not really sure about specific 'Harry mpreg in cave' fanfictions as it's a rather niche and not very common theme. You could try searching on major fanfiction websites like Archive of Our Own (AO3) and use those exact keywords to see if any relevant stories pop up.
One popular theme is the 'opposites attract' aspect. Derek is often seen as the brooding and serious one, while Stiles is the more talkative and energetic. Their differences create a lot of interesting dynamics. Another theme is the supernatural elements that are usually part of their world in the fanfiction. It could be about them facing a new supernatural threat together and their relationship growing stronger in the process. Also, the theme of self - discovery within the relationship is common. As they fall in love, they also learn more about themselves.
Common themes in Hunger Games cave scene fanfiction include trust. When the characters are in the cave, they have to trust each other to a great extent. This can be a major focus of the fanfiction. Also, there's the theme of discovery. Maybe they discover something new about themselves or about the Hunger Games world while in the cave. And vulnerability is often a theme too. Being in the cave, they are in a somewhat exposed state, and how they deal with that vulnerability can be explored.
Adventure is another common theme. Stories of people going on great adventures, exploring uncharted territories, like in 'The Adventures of Tom Sawyer' where Tom and his friends have many exciting escapades along the Mississippi River.