I have a couple of questions about this game for anyone whose been playing it. I saw another discussion thread saying that the game doesn't have AI. So is it fun to play solo, or is it only good when playing multiplayer? Can you play with random people online or do you have to know/find your own opponents to play against? How active is online play? Are there usually other players available for a multiplayer game?

I'm really interested in the game, but don't want to be let down by a lack of people to play with, especially if the solo isn't fun in and of itself.

Thanks all!