Key To Heaven
Key To Heaven is a 2d based free medieval MORPG. PvP starts after level 5 so either you need to be very strong and fight alone or create/join a guild and fight together. The quests are never ending and the gameplay is very unique. Download it and check it out for yourself.
So incase you see something you think you might like, bookmark the website, try the game or just check it out from time to time. Or join the forum and talk to the members in the community.