After addicted to Mafia Wars in Facebook since 2008 until early 2013, then exposure to Candy Crush Saga; luckily I know cheat for this game, and ended the game in no time (so, not attached for too long. as yesterday, I've completed maybe level 450?). Now a new game, as the title dictate- Castle Clash.
I can say, this online game is similar to Mafia Wars, with major difference in presentation, i.e. the moving characters, buildings, etc. If you can compare, its like playing soccer game Fifa vs Championship Manager.
It's a free game, but might need you to spend, if you really like it; to level higher and stronger. The objective is very simple, play to be the best, top ranking, strong heroes, strong defense and troops. Started with a small townhall, barrack, gold and mana mine, and a hero (a blue underwear Executioner, an Elite class hero); you will explore the dungeons, gain experience, honor badges (HB), gems, and maybe found some very rare shards.
Challenges are; you can only explore dungeon every 20 or 30 minutes, with 5 max. You can attack other players, and they can attack you. they can/will steal up to 25% of your gold/mana. There is Arena to fight using heroes only. Higher ranks gives higher HB. Read more in their official forums.
So, why don't you try it, if you got times. Check out youtube videos too. And, now no cheat because it works online. Cheating quite easily can be detected by developer. Watch out.
Now I have "might" at slightly over 4000; I don't want to increase more to avoid stronger opponent range (maybe you can call it "shark tank"). Arena ranking between 5,000 to 15,000. My older version of my base (keep changing my defenses):