CitadelEarth ShieldDefense

Defend a lonely planet drifting through deep space by controlling two orbiting shields represented by the blazing Sun and the frozen Moon. Swipe up or down anywhere on the screen to rotate the shields and destroy incoming asteroids using the opposite element. Fire asteroids must be blocked by the Moon, while ice asteroids must be stopped by the Sun. Using the wrong shield causes a devastating explosion. As the game progresses, asteroid waves become faster and more intense, demanding quick reflexes, precise timing, and strategic use of special abilities. Earn bonus points with perfect center hits, collect rare Aurora asteroids, charge and unleash the powerful Pulse ability, complete five handcrafted levels with unique visual themes, unlock achievements, improve your performance through detailed statistics, earn three-star ratings, upgrade permanent abilities in the Stardust shop, and experience smooth space visuals with customizable motion effects and haptic feedback.