Chivalry is free this weekend on steam.. Its not an MMO and its not an RPG but its a first person medieval combat game where you can free swing your sword and do battle. I just started and it is a freaking blast.. super high skill ceiling but the basics are very simple just quite hard to master check this guy out for an idea of what the game is about he just helped me up my game...

http://www.youtube.com/watch?v=llnRxtazljg

Also note its 50% off this weekend on steam as well I am already planning to buy it am really having fun perhaps this will help me get to TESO