Recommendations on free MMORPG?

Wyvern is a good one: a href="http://www.cabochon.com" rel="nofollow"http://www.cabochon.com/a It's 2d fantasy, completely free. The game has a very detailed combat system that is very much anti-grind so it's not a game that can be botted (it's revolves a lot around exploration, randomization, and group dynamic) and there are a lot of fun quests that can be very challenging.