One interesting concept could be a crossover with a fantasy world like Middle - earth. Imagine an assassin having to navigate the perils of Mordor while still maintaining their creed. Another concept might be a crossover with a historical event not directly related to the main Assassin's Creed timeline, such as the sinking of the Titanic, where assassins could be on board for a secret mission.
Writing a good Assassins Creed crossover fanfic is all about balance. You have to balance the elements of Assassin's Creed, like the hidden blade and the assassin's parkour skills, with the elements of the crossover. Let's say it's a crossover with a detective story. You can't overshadow the detective's investigation skills with the assassin's combat abilities. Also, create believable relationships between the characters. If an assassin teams up with a detective, there should be some initial mistrust that gradually turns into respect and cooperation as they work towards a common goal.
Another unique aspect is the cultural clash. Naruto comes from a world of ninjas with its own set of values and traditions, while Assassin's Creed has a different set of historical and cultural references. In fanfiction, seeing how characters from both worlds interact with these differences, like Naruto trying to understand the Assassin Brotherhood's code, is really interesting. It can lead to character development and new storylines that wouldn't exist in either of the original universes.
One idea could be that Naruto, with his unique ninja skills, is somehow transported to the world of Assassin's Creed Syndicate. He might mistake the Assassins for a new type of ninja clan. He could then learn their ways of stealth and parkour, while also teaching them some of his jutsu. For example, his shadow clone jutsu could be used to create distractions during assassinations.
One possible plot could be that Naruto, with his ninja skills, gets transported to the Assassin Creed world. He might team up with an Assassin, perhaps Ezio. Together, they could use Naruto's chakra - based attacks and the Assassin's stealth and combat skills to take on a common enemy, like a powerful Templar - like figure who is threatening both the ninja world and the Assassin's world.
There are 'naruto assassin creed fanfiction' stories that focus on the crossovers between the two worlds' characters. Naruto could team up with Ezio, for instance. In these fanfictions, they might face common enemies or go on quests together, combining Naruto's ninja skills with Ezio's assassin techniques. It makes for an exciting read as it blends two very different fictional universes.
Well, it could have Naruto characters using Assassin's Creed skills like parkour. For example, Naruto could be running across the rooftops of Konoha in the same fluid way as an Assassin. Maybe Sasuke would be like an assassin with his stealth and quick strikes.
It could be a really interesting mash - up. Maybe Naruto's ninja skills could be incorporated into the Assassin's Creed world. For example, his ability to run on walls and use shadow clones could be seen as similar to the parkour and stealth abilities of the assassins in Unity. He could be on a mission in the French Revolution setting, using his unique skills to fight against the Templars.