Games like Defender

Here are some great alternatives to Defender by GASP :
Space Cadet Defender Invaders
Space Cadet Defender Invaders
★4.5
Space Shooter: Galaxy Attack
Space Shooter: Galaxy Attack
★4.6
Space shooter - Galaxy attack
Space shooter - Galaxy attack
★4.8
Invaders Mars Defender
Invaders Mars Defender
★4.6
Galaxiga: Space Arcade Shooter
Galaxiga: Space Arcade Shooter
★4.7
Space Invaders Classic X
Space Invaders Classic X
★4.0
Falcon: Classic Space Invaders
Falcon: Classic Space Invaders
★4.7
Space Invaders3D
Space Invaders3D
★4.7
Alien attack - Galaxy Shooter
Alien attack - Galaxy Shooter
★4.2
Galaxy Invaders: Space Shooter
Galaxy Invaders: Space Shooter
★4.4
Alien Swarm
Alien Swarm
★4.2
Beat Space
Beat Space
★3.6
Chaos Galaxy - Space Shooter
Chaos Galaxy - Space Shooter
★4.3
Grid Defender
Grid Defender
★3.5
Invaders - Classic Shooter
Invaders - Classic Shooter
★4.1
Galaxy Attack: Space Battle
Galaxy Attack: Space Battle
★3.9