Many Harry Potter fanfiction writers are motivated by the sense of community. They write to share their ideas with other fans. It's a way to connect with people who have the same passion for the series. Additionally, it can be a form of self - expression, allowing them to pour their creativity into the world they adore.
One motivation could be revenge. If Harry witnessed more heinous crimes committed by the Death Eaters or other dark wizards, he might decide that the normal ways of dealing with them through the Ministry of Magic are too slow or ineffective. He could take matters into his own hands and become an assassin to quickly dispense justice. Another motivation could be a sense of powerlessness. If he feels that he's constantly being manipulated by Dumbledore or other powerful wizards, he might turn to assassination as a way to take control of his own destiny.
Perhaps Harry sees a bit of himself in Atreus. Atreus is on a journey of self - discovery and growth, much like Harry was during his years at Hogwarts. Harry could be drawn to Atreus' courage and determination, and so he decides to save him when he's in trouble. It could also be that Harry is just exploring this new and strange world of God of War and when he comes across Atreus, he feels compelled to protect him as he would any other innocent in his own world.
One common motivation is love. Characters might be driven to pursue a romantic relationship, protect a loved one, or avenge a lost love. Another motivation could be power. They strive for political power, wealth to gain influence over others. Also, survival is a key motivation, especially in novels set in harsh environments or during difficult times.
It's not a common type. In the vast world of Harry Potter fanfiction, you'll find a lot more stories about Hogwarts during different eras, the relationships between the main trio, or the exploration of the wizarding world's politics. 'Breeder fanfiction' is more of a specialized sub - genre that only a small subset of fans might be interested in, as it delves into family - building and genetic - like concepts which are not as central to the general appeal of the Harry Potter series.
One common motivation is the pursuit of power. In Naruto fanfic, characters might be driven to become stronger to protect their village, like Naruto himself. Another motivation could be revenge. For example, a character whose family was killed by a certain villain in the Naruto universe might be motivated by revenge in the fanfic. Also, love can be a strong motivation. A character could be motivated to achieve great things to win the heart of their beloved.
Maybe they get frustrated with the slow progress of the good side. In the fight against Voldemort or other dark forces, they might feel that the good side is too cautious and that more drastic measures are needed. This could lead them to believe that the dark side's methods are more effective.
Snape could be motivated by some dark magic experiment. He might have thought that turning Harry into a vampire could unlock some hidden power that could be used against Voldemort or for his own gain in the wizarding world politics.
She could be frustrated with the Ministry of Magic in Britain. Maybe they're not taking Voldemort seriously enough or are even hindering her attempts to fight him. So, she decides to go directly to Voldemort to end it all on her own terms.
Love and sacrifice are also prevalent themes. We see how the love of Lily Potter saved Harry in the original series, and fanfiction often expands on this idea of love being a powerful force. There are also fanfictions that explore the idea of redemption for characters like Draco Malfoy, showing that even those on the wrong side can have a chance at changing and making amends.
One common challenge is staying true to the original characters' personalities. For example, Hermione should still be intelligent and studious. Another is creating new and believable plotlines within the wizarding world. Fanfiction writers often struggle with making their magical elements fit seamlessly with J.K. Rowling's established magic system. Also, dealing with the complex relationships between characters like Harry, Ron, and Hermione in new situations can be a challenge.