Perfect world is the best free MMO it got over 50million people wordwide
Code of Everand is a great free online MMO that you don't have to download anything for and it looks great too!
The answer is yes, NickSYS Games is working on a 100% Free Zelda MMO titled "zOnline".
There are many places one might play MMO (or better known as MMOG) games. The "Free MMORPG List" website or "MMO Bomb" websites would be a good place to begin.
It all depends on you if you want to get World of Warcraft or not. It is recommended that you use the free trial account to get a feel for the game, and then decide if you want to continue with a full account.
The rage today about gaming beside FPS is the mmo. The most popular mmo is World of Warcraft, but this is losing customers due to the difficulty to "be the best." People have been setting their eyes to a new mmo called Rift, and others have already switched to DC Universe Online.
Altis Gates
Check out a game called Code of EverandCode of Everand is a free MMO that has no download requirements but still looks amazing and is super fun to play.I just reached level 62 this week so I'm pretty into it lol. It has a huge map, tons to do, monsters to battle, and best of all its free!
Ultima online
1. RuneScape 2. Lord of the Rings Online
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Free MMPORPG games can be found at MMO Zone, MMO Bomb, Games Radar and Grand Fantasia. If you plan on downloading any games, be sure to have your virus protection software running.
http://www.mmobaseball.com/createaccount.aspx?ref=6314 is a good baseball mmo. If you join from the link above, you will get 300 free points.