FlyFF - Flyff (Fly For Fun) is one of the greatest running fantasy based MMOs.
Rakion - Rakion is a 3D, Action, Massively Multiplayer Online, Role-playing, Fighting and Fantasy video game created and published by Softnyx.
Rumble Fighter - Rumble Fighter is an Addictive, Action-Adventure, Role-playing, Massively Multiplayer Online, and Fighting video game created by WeMade Entertainment and published by RedFox Games.
NosTale - NosTale (The Tale of Nomads of Silver Spirit) is a totally free MMORPG that includes simple (but beautiful) graphics and also lots of class options.
Global Agenda: Free Agent - Global Agenda: Free Agent is an Action Role-playing, Massively Multiplayer, Third-person Shooter, Futuristic video game developed and published by Hi-Rez Studios.
LaTale - LaTale draws heavily from some other 2D side scrolling video games to provide a great fantasy MMORPG world.