The good thing is that this game (or Ronin for that matter. I don't actually own En Garde despite being a big fan of the period, but it's based on the same mechanics.) will work for almost anything using swordplay. I think it works better with periods of more elaborate swordplay such as Feudal Japan, other far eastern fun things, three musketeers things and - I thought one of the most obvious candidates - Star Wars. You can basically take Ronin as it is and turn it into a "jedi and some lowly friends warband" game.