I just bought the Arena and am excited to see everything it offers as opposed to the 1st one. The problem is, I have spent numerous hours mining and then I finally get a message saying I need to go to the store to do some challenges, however, there is nothing to buy. It says I am on Level 68, but I have no idea why I can't access any of the challenges. I don't mind mining, but I don't want to just mine.
OK, now I am even more confused. Is the Arena the same as the first on just with duels? I have all the blueprints and challenges done on that one and I am wondering if the Arena has new levels. If not, I just lost 7.99 since I am not interested in the social part of this. I assumed this was a completely different game.