Multiply the volley, crumble the keep
Steer a volley of cannonballs through number gates to grow it, then hold on the goblin castle to blast it apart with real physics. Sixty castles across six regions with boss keeps, goblins that duck and throw rocks back, TNT, glass and ice, a Daily Castle and the Endless Siege leaderboard.
Knock out every goblin in each castle. First drag left and right to steer your volley of cannonballs through the best number gates (gold jackpot gates slide across the road, rocket gates give a rocket that grows), then hold your finger on the castle to fire and slide to aim; tap BOMB to blast thick walls and ROCKET to fire it straight. Hit the red-flag throwers first or shoot their rocks down, spend coins at the Forge, and play 60 castles in six regions, the Daily Castle or the Endless Siege leaderboard.