Well, in some Harry Potter alternate reality fanfics, the houses at Hogwarts are sorted differently. For example, instead of the Sorting Hat choosing based on certain traits, students are sorted randomly. This completely changes the social structure within the school. Also, there are fanfics where magic works in a different way. Maybe spells require a different type of wand movement or incantation. It makes for a really fresh take on the magic we know from the original books.
One interesting concept could be a world where Voldemort won the war. It would be a dark and desolate place, with the wizarding world under his tyrannical rule. Another could be a Harry Potter who was sorted into Slytherin instead of Gryffindor. This would change his relationships and the way he approaches challenges. And there might be fanfictions where magic works completely differently, like having a more elemental - based magic system in this alternate reality.
Harry Potter himself is still very popular in alternate reality fanfiction. Writers often like to explore different versions of him, like a more powerful Harry or a darker Harry. Hermione Granger is also a favorite. She can be depicted in scenarios where she uses her intelligence in new and unexpected ways. Draco Malfoy is another popular character. In alternate realities, he might be redeemed or become an even bigger villain.
One interesting concept could be a world where Voldemort won the war. It would be a dark and dreary place, with Hogwarts under his control. Another concept might be a gender - swapped version of the main characters, which could lead to different relationship dynamics. Also, a world where magic is discovered by Muggles and there's a complete upheaval of the wizarding world's secrecy.
First, think about the big change you want to make to the original story. It could be something like changing the time period or a major event. Then, start planning your characters. Decide how the main characters will be affected by this alternate reality. For example, if you change the time period, how will Harry's personality be different? After that, outline the plot. Think about the conflicts and how they will be resolved in this new reality.
In some alternate reality Shrek fanfics, the fairy - tale creatures that Shrek befriends could have different powers. Like the Gingerbread Man could be able to create other baked goods that come to life and help in battles. This would completely change the dynamics of the group and the adventures they go on.
One interesting aspect of alternate reality Shrek fanfic could be a world where Shrek is a prince instead of an ogre. He'd live in a grand castle, wear fancy clothes, and have all the typical 'prince' trappings. But his inner ogre - like his love for the simple things and his gruff nature - would still be there, creating an interesting conflict between his new identity and his true self.
The original series has a set path for the characters' development. In alternate reality fanfiction, this can be vastly different. A character who was a minor one in the original could be a central figure in the fanfiction. For example, Neville Longbottom could be the main hero instead of Harry in some alternate realities. The overall tone can also be different. The original has a balance of dark and light moments, but fanfiction can be much darker, like a world where there is no hope for the wizarding world against the dark forces, or much lighter, with no real big threats.
Well, 'harry potter reality marble fanfic' might be a fanfiction that combines the magical world of Harry Potter with the idea of a Reality Marble. In the Harry Potter series, we have all sorts of magical concepts already. But this fanfic would take it a step further. Maybe it's about a character, could be Harry himself or some other powerful wizard, who discovers or creates a Reality Marble. It could be a place where magic works differently, or it holds secrets related to the overall plot of the fan - created story.
In these fanfics, the theme of adaptation is quite common. Harry has to adapt to his new identity, whether it's a new name, a new magical ability, or a new social standing. Another theme is the exploration of different magical cultures. If his identity is changed in a way that he's associated with a different group, like a foreign wizarding community, it delves into different magical practices. And identity crisis is also a key theme. Harry may struggle with who he is now compared to who he was supposed to be in the original story.