Mordhau

Mordhau is a multiplayer medieval fighting game where fights range from duels all the way to large, open battles of up to 64 players with horses, siege engines, and castles to be stormed. It features a skill-based free-flowing combat system that is easy to learn, but hard to master.
Offline mode.
Mordhau is primarily an online game, but you can play the game offline against bots with different personalities and difficulties.
END HIM RIGHTLY.
Yes, you can unscrew and throw your pommel in this game.

I assume some of you would be interested in this game, currently, it is still in Steam Greenlight, meaning that hopefully it will be released by the end of the year or early next year.