I think that should make it easier.
Looking for F2P MMORPG's that have real-time combat. What that means is manual, actually have to aim your attacks, actually have to move to dodge enemies, no click to kill like WoW or other generic MMO's like Rappelz or Allods.
Examples: Demons Souls, Divine Souls, Dungeon Fighter, Mythos, Diablo, etc.
The catch? Only looking for one that's an MMO with a Medieval theme.