Generally speaking, apps don't do well until they are featured by apple, or by a popular app website like appvee or toucharcade or even sites like gizmodo and the iphone blog.

I found it on toucharcade when they did the review for it, but I have not seen it anywhere else. This app is only a month old give it time. I think they are doing good for having around 700 players online at one time. This game can only go up in the near future. Especially since the studio it came from is brand new on the app store. Or at least I don't think they have any other games.

If a studio like gameloft or ngmoco were to make this it would be popular faster, but the app would be subpar. Also we wouldn't see the great support like we do with these guys at Spacetime Studios. Look at We Rule for example. Great game, TONS of potential, but the app kills it. Too slow and way too many crashes. Ngmoco has too much on their plate to even fix it fast. Just give it time and hopefully we will see this in the top 25. Heck even if it makes the top 100 you will see a good increase in new players.

Another huge issue is if you search MMORPG you will find stuff like Epicpetwars, mafia wars, and a bunch of other crap games that all do the same thing. You have to go in very far to find this bad boy.