First, choose the other universe you want to cross with. For example, if it's a superhero universe, think about how the powers would work in a zombie - infested world. Then, plan your characters' interactions. Will they be allies or enemies? Also, keep the tone of "The Walking Dead" - dark and gritty. Don't be afraid to make tough decisions for your characters.
A popular "Walking Dead" crossover fanfiction involves a crossover with "Game of Thrones". Imagine the politics and power struggles of "Game of Thrones" combined with the zombie apocalypse of "The Walking Dead". It's a wild ride as characters like Daryl Dixon and Jon Snow interact, with lots of unexpected plot twists.
Another theme is the clash of worldviews. The Leverage crew is more about earthly justice and taking down corrupt humans, while the Supernatural guys are used to dealing with otherworldly threats. So in some fanfictions, there can be interesting discussions and conflicts arising from these different outlooks. For instance, Nate from Leverage might question the Winchesters' methods of just killing demons instead of trying to reform them or something.
A cool 'Walking Dead Crossover Fanfiction' idea is to cross it with 'The X - Files'. Mulder and Scully could be investigating the zombie outbreak. They might find out that it's not just a normal virus but some kind of government experiment gone wrong, which ties in with the conspiracy theories they usually deal with. And the characters from 'The Walking Dead' would be skeptical at first but then realize they need Mulder and Scully's help to figure out the real cause of the zombies.
One possible plot could be that Naruto and his friends somehow end up in the world of The Walking Dead. Naruto's ninja skills would be really useful in fighting off the zombies. He could use his shadow clone jutsu to create distractions while they look for supplies or a safe place. His friends like Sakura could use her medical skills to treat any survivors they come across. And Sasuke could use his sharingan to detect any hidden threats, either from the zombies or from other groups of survivors.
It could be really interesting. Picture Naruto and his ninja skills in the post - apocalyptic world of The Walking Dead. He might use his shadow clone jutsu to distract the walkers while finding a safe place for his group. His speed and agility from being a ninja would also give him an edge in combat against the undead.
Lee Everett is often popular. His moral compass and leadership in the original game make him an interesting character in crossovers. He can bring his survival skills and decision - making abilities to new situations in the crossover fanfiction.
If we consider a crossover with 'Star Trek', Captain Kirk would be a fascinating character to include. He's used to exploring new worlds and dealing with strange situations. In 'The Walking Dead' universe, he could use his leadership skills to organize the survivors. His optimistic and adventurous spirit might inspire the survivors to look for a better solution than just constantly running and hiding from the zombies.
One of the most interesting aspects is the world - building. When you cross over 'The Walking Dead Game' with another, say, a fantasy game, you get to see how the zombie - infested world would co - exist or clash with a magical world. It allows for a lot of creativity in terms of creating new locations, power dynamics, and threats. Also, the exploration of different moral and ethical dilemmas that the combined characters might face is really engaging.
There could be a new type of hybrid creature that is a result of the combination of the zombie virus and some supernatural element from Bella's world. This hybrid could be extremely powerful and unpredictable, and it sees both humans and zombies as a source of food or something to dominate, making it a very dangerous antagonist in the fanfiction.