Mordhau is a multiplayer first person slasher, with deep character and equipment customization and a focus on fluid melee combat.
My favourite game to come out in years, sword play is intense and feels balanced. Quite a few gamemodes so If youre not up for a 1v1 vs some guys with hundreds of hours you don't have to but even thats pretty good.
I didn't really like chivalry though so worth watching a couple vids if you like the idea but havent played stuff like it.