Build your castle and grow your treasure.
Start the game by building first a simple castle. Use the practice menu to test it against the catapult fire. When your castle is strong enough you can upload it to the cloud. On the cloud castles can face challenges (attacks) from other players.
Each castle should have a treasure chest. If the treasure is destroyed by other players you will loose the chest value, but to arrive to your castle any other players will pay you the travel costs.
In order to play online (challenge or upload castles) you must create a game account by choosing a public name.