Flamboyance is half TTRPG and half LARP - fights are resolved by hand slapping games. It's a swashbuckling system ideally suited for over-the-top action in the vein of pirates, highwaymen, and merry bands of bandits. The perfect adventure is a heist! The system is a simple 2d6 roll: success and cost, modifying a handful of stats that influence overall status.
I encourage inventing more dueling styles! Please credit the game author and make your adventure either free or PWYW.
-----
Similar in theme is my recent entry for the Appx N Jam (somebody stop me if those aren't what this jam is looking for) Rogues in the Manse, a system-neutral dungeon crawl set in a far future where player are retired Musketeers guarding the centuries-old relic of Dumas' characters. Swashbuckling focused on mouthing off, and misusing everyday items! Possibility for ultratech musketeering!