The game is ok. I can play without paying, but this game has bugs, like during summon event, i get certain rewards at certain number of summons. Summon 400 scrolls, but didn't get none of the rewards. Contacted custumer service, they said they are aware of the bug, and actively fixing it. A few days later still no contact from them, so contact them again, now they said they are not sure about the bug! another bug, i logged in the game and all my heroes GONE, DISAPPERED!