MMORPG.com reviewed the free-to-play MMO Dungeon Runners. They handed it a very respectable score of 7.9 ("good") and summed it all up by saying:

In closing, you won't regret downloading Dungeon Runners. The download time isn't too bad, and let's face it the cost is right. It's worth mentioning again that this game is one of the most fun I've played. Simple, to the point, and with tons of humor laced throughout the game.

As an on and off Dungeon Runners player, I have to agree with this review's assessment. Check it out at the official Dungeon Runners site.