If you’re looking for a game that is filled with action, yet requires strategizing and thinking on your part then castle defense games are the way to go. What’s great about these apps is that you can actually play a game where a castle is involved, but there are also plenty of other themes that you can check out and probably become addicted to rather quickly. Do you have what it takes to defend your castle and conquer others? If yes, then check out our list of the best iPhone apps for castle defense games.