For a multiplayer game it sure is empty !!! I don't know if anyone else is having issues but my tower is always empty and can't connect to any of the PvP stuff. Everything worked fine for first 4 or 5 hours but after that all I can do is pay alone. I would say it was on my end but I worked so well up till I would say 2 pm yesterday.
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There is only a max of 16 you probably got put in a empty one cuz the others were full