Here are some of the F2P MMORPG/MMOs that I have enjoyed and continue to play
Not every game I have tried has been good some I have installed tried and instantly deleted but there are some exceptions
Allods Online: This has to be one of my favorite games. I love trying out the classes this game is lots of fun, great graphics, large player base, lots of classes to choose from, I love the arisen and the elves two of my favorite races in a game. The game is free to play and has a cash shop Feel free to check it out here : http://allods.gpotato.com/
Runes of Magic: Another game that's lots of fun to play, good graphics, not quite as good as Allods online but still decent, large player base http://us.runesofmagic.com/us/
Fallen Earth: A game set in a post apocalyptic world, lots of character customization, great graphics, Lots of things to do, I haven't spent too much time playing this and the controls take a little getting used to but over all a fantastic game!
Forsaken World: Beautifully designed game from Perfect World International, amazing characters, large player base, all in all a beautiful game http://fw.perfectworld.com/
Requiem: Requiem Memento Mori, Latin for remember you will die, and you perhaps just will, this game is gorgeous, violent, brutal, the characters don't have a lot of customization, but they are beautiful. From the opening with the popping stitches to the nightmare creatures that roam the land this game is terrific http://www.playrequiem.com/
ARGO: ARGO online another beautiful game (I'm a sucker for a game with good graphics) a hybrid MMORPG fantasy vs. steampunk (I wish more games used steampunk themes) another game I haven't had a lot of time to check it out but I have liked what I've seen so far http://argo.en.alaplaya.net/
Lord of the Rings: There isn't much I don't like about this game, the quests are fun, the gameplay is great ... the only thing I don't care for is that the characters, the female characters at least, look like they were beat with the ugly stick I wish you could make them a bit easier on the eyes. http://www.lotro.com/free.php?
Perfect World: A large game with lots of things to do, different races, different classes, the graphics aren't spectacular but still a good game http://pwi.perfectworld.com/
DC Universe Online: Be a powerful superhero or an awesome super villain I absolutely love this game! http://www.dcuniverseonline.com/
And a fantastic free to play online game for the kids ...
Digimon Masters Online: A fun game set in the real world and the underground world of Digimon http://www.joymax.com/dmo/