Free MMORPG are free massive multiplayer online role-playing games in which players explore and interact in huge persistent virtual game worlds. While most of the triple AAA mmos are subscription based in the last years developers moved to a free to play business model where the core content is free but with the option to buy additional content and equipment.
There many free mmorpgs out there but not all are of a good quality in terms of game mechanics, story, innovation and flow. To help you in your quest to find a good free mmo, i will post my top free mmorpg list. I will start for now with a top 3.
1) World of Tanks
2) Lord of the Rings Online
3) Age of Conan
That's all for now, "moar" to come!