Games like Grid Defender

Here are some great alternatives to Grid Defender by Fred Sauer :
Invaders Mars Defender
Invaders Mars Defender
★4.6
Space Swift: The Sky Defender
Space Swift: The Sky Defender
★4.3
Space Cadet Defender Invaders
Space Cadet Defender Invaders
★4.5
Retro Grid
Retro Grid
★4.4
Defender
Defender
★3.7
Alien Swarm Pro
Alien Swarm Pro
★4.3
Invaders Deluxe
Invaders Deluxe
★4.1
Galaxy Attack: Shooting Game
Galaxy Attack: Shooting Game
★4.7
Galaxy Invaders: Space Shooter
Galaxy Invaders: Space Shooter
★4.3
Galaxy Invader: Alien Shooting
Galaxy Invader: Alien Shooting
★4.7
Galaxy Attack: Space Battle
Galaxy Attack: Space Battle
★3.3
Alien Swarm
Alien Swarm
★4.2
Arcade Defender
Arcade Defender
★3.9
Super Grid Run (Lite)
Super Grid Run (Lite)
★4.8
Space Defender Xtreme
Space Defender Xtreme
★3.8
Invaders - Classic Shooter
Invaders - Classic Shooter
★4.1