Dunno if you know this game but it's a pretty awesome medieval first Person Slasher running on unreal engine:
The official site:
http://www.chivalrythegame.com/
A few videos:
http://www.youtube.com/watch?v=kZZ2ay86 ... ature=plcp
http://www.youtube.com/watch?v=B7gdT7ix ... ature=plcp
http://www.youtube.com/watch?v=ANcOMla9 ... ature=plcp
a preview of the beta version of the game:
http://www.youtube.com/watch?v=_J02ym49 ... re=mh_lolz