If I were to make a fire emblem copycat game but with different characters, story and dialogue and but only keep the gameplay mechanics.
Specifically of Fire Emblem Echoes: Shadows of Valentia, would I get into trouble with Nintendo over copyright disputes? because from what I can gather they can copyright the game, characters even aesthetics. but not gameplay.
The reason I'm asking this here is does anyone have any experience with making their own FE inspired turn-based strategy game? and if so what would be the do's and don'ts? to ensure the project, myself and the team do not fall under any lawsuits by Nintendo.
I know it may seem shallow to want to copy the mechanics of a game, but I'd rather make a really good copycat than a really bad original game.
My other (more personal) objective with the project is to promote cultural awareness of my father country, it's language, dialects, scripture history and culture. there is a lot of media out there in surrounding it like books, movies, and music. But no video games.
So that's my motivation for this project, I even found the perfect historic event to take inspiration from, one that would really fit the "FE" archetype I think. So, any thoughts or tips?