for people who have no idea what it is, it's basically a game where you build a base and an army where you can attack and be attacked by other players.
however, building things, after paying x amount of gold for (in-game currency) you will be prompted to "wait" until it is completed. At first, things might take 10, 15 minutes. however, these numbers soon turn into 6-8 hours minimum and up to a week or two depending on the building. to speed things up you can buy gems which are the game's special currency, which give 1500 gems for (pretty sure) $15. with these you can buy "builder's huts" which you can buy to be able to upgrade and build more things at a time, speed up the process of building things (instantly), and buy buildings themselves. early in the game, again, things in gems usually cost 10 gems or so but later on speeding up the process of a week long build might use 1000 of those gems - a whopping $10! basically, all this game wants you to do is buy their stuff, just like every other f2p game out on the mobile market right now.
tl;dr this game sucks