A plot could involve Naruto being trapped inside the mind of a character from The Evil Within. He has to navigate through the twisted and dangerous mental landscape, facing the character's inner demons. Meanwhile, back in the real Naruto world, his friends notice his strange behavior and suspect that something is wrong. They try to find a way to reach Naruto in the other world and bring him back, while Naruto battles not only the evils within the mind but also the influence it has on his own chakra and ninja abilities.
Naruto might become more introspective. Dealing with the extreme evil from The Evil Within, he'd start to question his own inner darkness. He could learn to better control his negative emotions as he faces the nightmarish situations. His understanding of the power of the mind would also grow, which could lead to new jutsu related to mental manipulation or defense.
One common theme could be the struggle between good and evil within Naruto himself. In this type of fanfiction, it might show Naruto being tempted by darker forces, like the power of the Nine - Tails being misused. Another theme could be the corruption of the ninja world. It could explore how the existing power structures in the Naruto universe can be perverted to serve evil ends.
Sasuke is often a popular character to be portrayed differently. In 'Naruto Evil Within' fanfiction, he might be even more of an anti - hero or fully embrace the dark side, perhaps being more ruthless in his pursuit of power. He could be shown as having a different relationship with Naruto, more adversarial and less likely to be redeemed.
Horror is a very common theme. Given that the source material is a horror game, fanfictions often aim to maintain that spooky atmosphere. There are lots of jump scares and descriptions of terrifying creatures.
Another theme is the exploration of the psychological aspects. 'The Evil Within' is known for its psychological horror elements. In fanfiction, OCs may be used to further explore the psychological effects of the nightmare world on different characters, how they deal with fear, insanity, etc.
Well, it could be about the RWBY characters getting trapped in a world similar to that of 'The Evil Within'. Maybe they have to face their own inner demons and fears while also dealing with the nightmarish creatures from the game. For example, Ruby might struggle with her fear of not being able to protect her friends in this new and terrifying environment.
Blending the different horror themes is difficult. 'The Evil Within' has its own style of horror, like the distorted environments and the menacing creatures. When crossing over with another horror franchise, like 'Fatal Frame', you have to find a balance so that neither's horror element overshadows the other and they work together to create a new, cohesive horror experience.
One challenge is maintaining the tone of both franchises. The Evil Within has its own unique brand of psychological horror, and when crossing it with another, like say, Outlast, you have to make sure not to lose that essence. For example, the lighting and sound cues that create the creepy atmosphere in The Evil Within need to be incorporated well with the asylum - based horror of Outlast.
Ruvik in fanfiction is often portrayed as even more complex than in the game. His past traumas are usually explored in more depth, which can sometimes make his actions seem more understandable. Sebastian, on the other hand, may be shown with more internal conflict. He's not just the tough detective; he might struggle more with the moral implications of his actions in the face of Ruvik's chaos. For example, he could question whether Ruvik is truly evil or just a victim of his own circumstances.