A 'broken fanfic' could be one where the plot is full of holes. Say, in a Percy Jackson fanfic, the main conflict is introduced but then resolved in a very rushed and unrealistic way. For example, the big bad monster that was supposed to be a huge threat is defeated with just a single, simple spell that wasn't even mentioned before as being that powerful. Or it could be a fanfic that completely messes up the relationships between the characters. Like having Annabeth suddenly hating Percy for no real reason, which goes against the strong bond they had developed throughout the original books.
One example could be a fanfiction where the character relationships are completely distorted. For instance, if in the original Percy Jackson series, Percy and Annabeth have a strong, positive relationship, but in the broken fanfiction, they are constantly at odds for no good reason. Another might be a fanfiction that completely changes the rules of the demigod world, like making it so that demigods no longer have powers related to their godly parent. This disrupts the whole essence of the original story.
There are several types of 'Percy Jackson dumb fanfic'. Some might be the ones that overly simplify the complex world - building of the series. In the original, there are detailed hierarchies among the demigods, different camps with their own rules and cultures. But in some fanfics, all these are ignored and it becomes a mess of random ideas thrown together. Also, fanfics that use the names of the Percy Jackson characters but are actually just some other story with no real connection to the essence of the original series can be considered 'dumb fanfic'.
In some Percy Jackson sick fanfics, the author might take a different approach. Instead of a physical illness, Percy could be affected by a mental or emotional 'sickness'. For example, he could be suffering from a curse that makes him lose his confidence or his sense of self. This would change his character dynamics as he would no longer be the fearless hero we know. His friends would have to find a way to break the curse and bring back the real Percy.
First, look at the characterizations. If you've made Percy or other characters act out of character, go back to the source material. Read how Rick Riordan wrote them and adjust accordingly. For example, if you made Percy too whiny, remember his brave and determined nature from the books. Second, check the plot. If there are holes, try to fill them in a logical way. Maybe add more build - up to the main conflict or give better explanations for how things are resolved.
I really liked a fanfic called 'Percy Jackson: Trials of the Titans'. In this one, Percy faces new challenges against the Titans in a post - war scenario. The story is filled with suspense as he has to use his wits and powers in different ways. It also has some great friendship moments between Percy and his friends from Camp Half - Blood. The descriptions of the settings, like the new parts of Camp Half - Blood, are really vivid and add to the overall charm of the fanfic.
One great 'Percy Jackson' fanfic is 'The Lightning Thief: The Graphic Novel'. It brings the story to life in a new visual way while still maintaining the essence of the original. Another is 'Percy Jackson and the Olympians: The Demigod Files' which has some really cool short stories that expand the universe. And 'Son of Neptune' fanfics can be really interesting too, as they explore Percy's new adventures in the Roman world.
There's also 'Emotionless Percy's Journey'. In this fanfic, Percy has to face his friends and foes while being emotionless. It's interesting as it shows how his relationships change and how he adapts to this new state. It really plays with the original characters' dynamics in a fresh way.
Perhaps it could be a centaur who was once a great guardian of the forest but has been broken by the encroachment of dark forces. Or it could be a minor god who was supposed to protect a certain aspect of the world but has failed and is now in a broken state. There are many possibilities within the rich lore of Percy Jackson.
One good topic could be Percy's exploration of different parts of the Underworld that weren't covered in the books. It could be about his encounters with new spirits and his attempts to navigate the unknown regions. Another topic might be the backstories of the minor characters at Camp Half - Blood. How they came to the camp, their initial struggles, etc.
A good Percy Jackson fanfic often has well - developed characters. It stays true to the original personalities of Percy, Annabeth, and the others. For example, if Percy is still brave but also shows his humorous side like in the books. Also, an interesting plot is key. It could be a new adventure that fits within the Percy Jackson world, like exploring a new part of Camp Half - Blood or facing a different kind of monster.