A perfect idle game with a hint of tower defense to it.

This is a classic idle game where you have to defend your castle using all sorts of heroes that you can get to a draw system, and you really need to push your luck to get those bad boys.

As for the gameplay, it's a bit dull for my taste in the action, and I still think the early game heroes don't really put up some flashy animations. But, probably if you're patient enough, you'll eventually get those strong characters and make it worthwhile to play.