Hi guys,
I just wanted to point out that Game Center does not seem to register Underworld Empire data correctly. For example, my level 540 toon with over a 100,000 duel wins is connected to a game center in which I have yet to earn the 'win 1,000 duels' achievement. Another achievement in game center is 'execute a player 150 times', something I did over 3,000 times by now, but this achievement is also one that, according to game center, I have yet to earn.
I'm not sure who is supposed to fix this, but it would be fun to use this feature to compare statistics correctly.