Some interesting concepts include alternate timelines. In a Team Fortress 2 crossover fanfic, we could see what would happen if the TF2 characters were in a timeline where the rules of their world were different. For instance, if the Engineer could build portals to other dimensions. Or, there could be a concept of a TF2 character getting the powers of a superhero from another franchise. This would completely change their role in battles and their relationships with other characters.
Well, a cool concept in Team Fortress 2 crossover fanfic is the cultural exchange aspect. Imagine the TF2 characters in a setting inspired by a different culture, like a feudal Japanese - style world. The Heavy could be a samurai - like figure, and his minigun could be some sort of super - powered traditional weapon. Also, the idea of TF2 characters interacting with different species from other fictional universes is great. Maybe the Medic could be studying the biology of some alien creatures in a crossover.
One interesting concept could be a crossover with other Valve games. For example, characters from Half - Life might find themselves in the Team Fortress 2 universe. They could interact with the TF2 characters in unique ways, like Gordon Freeman teaming up with the Heavy to fight off some common enemy. Another concept could be a crossover with a popular anime. Picture the TF2 characters in the world of Naruto, learning ninjutsu skills and having to deal with the shinobi politics. A third concept might be a crossover with a classic horror game. The TF2 mercenaries having to face off against the likes of Pyramid Head from Silent Hill in a spooky, fog - filled map.
One interesting concept could be a crossover with the world of Harry Potter. Team 7 could be transported to Hogwarts and have to navigate the magical world while still maintaining their ninja skills. Another idea is a crossover with the Avengers. Picture Naruto, Sasuke and Sakura fighting alongside Iron Man and Captain America against a common enemy. A third concept could be a crossover with the world of Pokemon. Team 7 could embark on a journey to catch different Pokemon and use their ninja abilities in Pokemon battles.
The Soldier is quite popular in Team Fortress 2 crossover fanfic. His patriotism and his over - the - top military style can be really interesting when combined with other military - themed characters from different franchises. Also, his rocket launcher can lead to some really explosive and action - packed scenes in crossovers. The Demoman is also a favorite. His love for explosives and his one - eyed, drunken - pirate - like appearance can be a great addition to many crossover stories, especially when paired with other rowdy or explosive - loving characters.
One plot could be that a powerful artifact has been discovered that has the potential to change the balance of power in both the Overwatch and Team Fortress 2 universes. Characters from both sides start to hunt for it. There could be double - crosses and alliances formed along the way. The Soldier: 76 from Overwatch might initially see the Red Team from Team Fortress 2 as enemies, but as they realize they have a common goal, they start to work together. Meanwhile, the Sniper from Team Fortress 2 could be in a sniping competition with Widowmaker from Overwatch as they also search for the artifact. This would create a mix of competition and cooperation in the story.
Another concept is the Joker's influence on the story's tone. In a crossover with a more light - hearted or comical universe, the Joker could still bring his dark and menacing presence, which would create a really interesting contrast. His actions and words could disrupt the normalcy of that universe and force the other characters to deal with a level of chaos they're not used to.
Another concept could be a time - travel - based crossover. Suppose Doraemon crosses over with Doctor Who. They could both explore different time periods and dimensions together. Doraemon's Time Machine and Doctor Who's TARDIS are both means of time travel, but they have different functions and appearances. Their combined adventures would be full of mystery and discovery.
One interesting concept is character interactions. For example, seeing how characters from different timelines or universes react when they meet. Another is the alteration of established storylines. It can create unique plot twists.
One interesting concept could be a 'Warhammer' crossover with 'Lord of the Rings'. Imagine the orcs from 'Warhammer' interacting with the orcs from Middle - earth. Another could be a crossover with 'Star Wars', like the Space Marines teaming up with the Jedi or Sith in some strange alternate universe scenario. And a 'Warhammer' and 'Harry Potter' crossover where the magic of the wizarding world meets the dark and gritty world of 'Warhammer' would also be really cool.
One interesting concept could be a Godzilla crossover with other giant monster franchises like King Kong. It could lead to epic battles and new storylines where they have to team up or fight over territory. Another concept might be a crossover with a superhero universe. Imagine Godzilla facing off against the Avengers or Justice League, which would require different strategies from both sides.
One interesting concept could be a xenomorph crossover with a superhero universe. Imagine a xenomorph invading a city where superheroes exist. The heroes would have to use their unique powers to fight this alien threat. For example, a telekinetic hero could try to hold the xenomorph in place while others figure out a way to kill it.