Webtoon does have a few 18+ comics. However, their availability can vary depending on your region and the platform's content regulations. Some might be hidden behind age verification or specific access settings.
The combination of Peter Parker's powers and the zombie - killing concept. His agility and strength as Spider - Man can make for some really cool action scenes against zombies.
Yes, there might be such fanfictions out there. However, it's a rather strange and dark crossover concept. Jeff the Killer is a very different and often disturbing horror character, while Peter Parker is a superhero. In a fanfiction like this, it could potentially explore a really dark and alternate universe where Peter Parker has an odd fascination with Jeff the Killer, perhaps exploring themes of good vs. evil in a very twisted way.
Well, AO3 is a great place to start looking for 'Peter Parker is Jeff the Killer' fanfiction. They have a large collection of various fanfictions. Another option could be Wattpad, but it has a wider range of content quality. When you search, make sure to also check the tags and ratings of the fanfictions to ensure it's something you're comfortable with, as this kind of crossover can be quite dark and unusual.
One popular 'Peter Parker Zombie Killer' fanfiction might be found on fanfiction.net. You can search there using the tags 'Peter Parker' and 'Zombie Killer' to narrow down the results.
No, webtoon and manhwa are not exactly the same. Webtoons can come from various countries and have diverse styles, while manhwa specifically refers to Korean comics.