Anyone play this? http://www.spiralknights.com/ It's free. Released on Steam as of 6/14/11 but it was out for a while before that by Sega as a standalone network. A Legend of Zelda: A Link to the Past style of gameplay, MMO-style. I suggest you give it a try!
I only did a small stint for the ticket, but I can say I'd rather play this with a group of people since there seems to be no solo content... so you auto-pug things which is just boooring.
Sokar, Ronin and I played this last night for a couple of hours. I think it's a great little game, though I wouldn't be caught dead spending real money on it. A controller is a must.