The pvp is broken because you have the people who pour every penny out of their pockets in order to get the best curios, and then there are the people that are trying to go through the game for a casual, fun time that only have the curios that you can get from basic or promo which only if you're lucky you can get a strong curio, and even then you have to grind and wait to gather up all the money required to evolve them instead of paying for gems to get more coins.
If you were able to be sent automatically to another server that wasn't down when the one you are in is getting updated it would be a much better game.
 "Curio Quest"){kind=icon}
 "Tanki Online"){kind=icon}
 "Scream Collector"){kind=icon}
 "Five-Leaf Clover"){kind=icon}
 "Cat God vs Sun King"){kind=icon}