Planeshift

Planeshift is another game that's been around for a long time now, constantly getting better. A gigantic project, Planeshift is a 3D Fantasy MMORPG with focus on actual role-playing in a persistent world. Due to it's long development time Planeshift has loads of content, such as 10 playable races, advanced profession systems, hundreds of spells, NPC's with AI that can "create" events, the ability to create your own house or castle, etc, etc. There is also a well-developed story around everything in the world, and some concepts such as the Death Realm, where you end up after getting mortally wounded and essentially works as an additional world you have to play through after dying to get back to the real world, makes the game interesting and unique. Everything  displayed in a robust 3D engine with some nice artwork.
Planeshift recently received a bit update containing many months of work, so a good time to try it would be now!