Check this game out, its pretty interesting.

http://www.pvkii.com/

http://www.moddb.com/mods/2214/pirates-vikings-and-knights-ii/news/26160/pvkii-beta-20-released

Watched the video on the website. LOL
My favorite part the 2 handed sword death blow and the guy that got stuck to the wall with an arrow.

Heres another game that I haven't played in a while, pretty decent for a free game:

http://www.taleworlds.com/