One interesting concept could be the merging of Dead Space's terrifying necromorphs with the characters or settings from another universe. For example, if there was a crossover with a science - fiction series like Star Trek, seeing how the Starfleet crew would handle the necromorph threat would be really cool. They have different technologies and ethics, so it would create a lot of conflict and new storylines.
The Marker in Dead Space is also likely to be a key element in a crossover fanfic. It has such a powerful and mysterious presence in the Dead Space universe. In a crossover with a horror - mystery series, the Marker could be the source of all the strange happenings, and characters from both universes would have to figure out how to deal with it or stop its influence.
Well, one possible plot could be that Naruto and his friends are somehow transported into the Dead Space universe. Maybe they initially think it's a new type of genjutsu. Naruto, with his never - give - up attitude, would try to fight off the necromorphs. His shadow clones could be used as decoys while he figures out a way to survive and get his friends out of there.
One idea could be a crossover with the Alien franchise. Picture Isaac Clarke in a derelict Alien ship, facing both Necromorphs and Xenomorphs. The different types of terrifying creatures could create a really intense and unique horror scenario.
Horror is a common theme. Since 'Evil Dead' is a horror franchise, the crossovers often maintain that spooky atmosphere. The presence of the Deadites, for example, brings in the horror element.
Survival is a very common theme. Whether it's characters from different shows trying to survive in The Walking Dead's post - apocalyptic world or vice versa.
Sakura would adapt by using her medical knowledge. She might study the necromorphs to see if there's a way to reverse their mutations. She'd also be a great support to the group, using her strength (which she's developed in Naruto) to protect the more vulnerable survivors from Dead Space. She could also use her chakra control to create barriers against the necromorphs.
You should start by thinking about the main conflict. If it's a Dead Space and Star Wars crossover, perhaps the Sith are interested in the power of the Markers. Then, develop your characters. How would a Jedi react to the Necromorphs? After that, outline your story, including the beginning, middle, and end. Don't forget to add some twists and turns to keep it interesting.
One interesting concept could be the combination of the Flood from Halo and the Necromorphs from Dead Space. Imagine how the two different types of parasitic, body - transforming threats would interact. Another concept might be the technology exchange. For example, how would the UNSC weapons and armor function in the Dead Space universe, and vice versa with the Dead Space engineering and weaponry in the Halo universe.
One of the coolest elements is the clash of the two settings. RWBY has a world full of magic, like Dust, and unique kingdoms, while Dead Space is all about a desolate, horror - filled space environment. In a crossover fanfiction, seeing how these two settings blend is really engaging. Maybe there are parts of Dead Space's technology that are brought into the RWBY world, or vice versa. Also, the different character personalities from both universes interacting can lead to some really fun and unexpected moments.