Well, it's hard to say for sure. The concept of 'porn-like' is quite subjective. Some might consider certain novels with excessive sexual descriptions as such, but it depends on individual perspectives and cultural standards.
In many places, 18+ porn comics are considered illegal. This is because they can have a negative impact on society and violate moral and legal standards.
Well, it can show different versions through the eyes of the fan. For example, a fanfiction could have a version of Spiderman who has a different suit, like one made entirely of nanotechnology that can transform into different shapes. The encounter between the real Spiderman and this fan - created version could explore how different looks can affect the perception of the hero.
The main distinction of porn with a story genre from regular porn is the presence of a coherent narrative. Regular porn often jumps straight to the sexual action, while the story genre tries to add some kind of story framework around it. But in the end, both are adult-oriented and feature explicit sexual content.
Well, it's hard to say. The game has its strengths and weaknesses. It offers great gameplay and visuals, but the story might not resonate with everyone. Different Spiderman stories in various mediums have their unique charm.