10 pager game concept/overview

I would like to create a 2d fighting game that will only have characters that use swords or other melee weapons. I'm not sure if it'll be a specific time centerpiece but maybe it could have fighters that look like they are brought from different times or from the future or mystically based. I would like each fighter to have a stage that represents them as well as stages that would be fun but these stages are purely for looks. I want the game to look kind of gritty but also not afraid to get silly at times as well. It could include a bunch of different melee fighting styles like swords, daggers, bigger swords, two swords, kunai, three swords, poles, halberds, chains, the list can go on and on. The name of it can be Sword ultimate fighterz max triple R the third because i think long fighting game names are funny. It's a fighting game so the player would be fighting against another player or an ai. On the outside I want the aesthetic to look very grim and dirty and gritty but really the game can be kind of silly. The story is that some higher being has dragged them here to participate in a tournament away from time and dimensions. They are each the best warrior in their time/universe and have been chosen specifically to fight. Each fighter has their own goals and ambitions to receive the prize at the end. The prize at the end of the game is the knowledge of everything that has happened and will happen in every universe