I attended a presentation by the creator of this game, it was around 2010. The most fun part was the business model. I don't remember the exact numbers, but he

I attended a presentation by the creator of this game, it was around 2010. The most fun part was the business model. I don't remember the exact numbers, but he made a lot of money on a free to play game before "free to play" model got really popular. One notable thing I remember is that the paid version had higher resolution options and it was one of the highly sought after features.