I'm not sure how to develop a good plot about some kind of fantasy-like war without making it seem like I'm copying someone, or without making it so complex to the point where I don't know how to write it.

Are there any good tips on making sure you come up with a good, unique storyline?

Developing a good, unique storyline can certainly be a challenge, but it's not impossible! Here are some tips to help you develop a fantasy-like war plot without feeling like a copycat or getting overwhelmed by complexity:

1. Start with your inspiration: While creating a completely original idea is difficult, the key is to take inspiration from various sources and add your unique twist. Look for inspiration in different mythologies, historical events, or even your favorite books, movies, or video games. Consider what aspects from these sources resonate with you and spark your imagination.

2. Identify your unique elements: Once you have some inspiration, think about what aspects you can add to make your story unique. It could be combining different genres or adding unconventional characters, unique cultures, magic systems, or unusual plot twists. Brainstorm ideas that haven't been explored extensively in other works.

3. Research and knowledge: Even in a fictional world, it's essential to have a solid understanding of real-world history, warfare, and cultures that can inform your fantasy war plot. Research various historical conflicts, battles, tactics, and elements of war to create a strong foundation for your story. This research will help you bring authenticity and depth to your world.

4. Define the conflict: Determine the key elements that drive the war in your story. Is it a war for resources, ideology, power, or revenge? Think about the underlying causes and motivations of the key factions involved in the conflict. This will help you shape the narrative and create conflicts and tensions within your story.

5. Develop compelling characters: Characters are the heart of any story. Create well-rounded and relatable characters on both sides of the war. Explore their personal motivations, fears, desires, and how they are affected by the conflict. This will bring depth and emotional resonance to your plot, making it more engaging for readers.

6. Outline the main points: Once you have your ideas, create a rough outline of the major plot points, key events, and character arcs. This will help you maintain a clear direction and prevent the story from becoming too complex or disjointed. The outline can be as detailed or as loose as you need, but it will serve as a roadmap for your writing process.

7. Iterate and refine: As you write, be open to revising and refining your plot. Sometimes, ideas that seemed great in theory may not work as well in execution. Stay flexible and willing to make changes as you discover what works best for your story.

Remember that while you may draw inspiration from existing works, your personal touch, unique ideas, and the way you execute them will make your storyline fresh and compelling. Embrace your creativity and enjoy the process of crafting your own unique fantasy war plot!