Games like Star Swift Defender

Here are some great alternatives to Star Swift Defender by Polgram: Retro Pixel :
Battlespace Retro: arcade game
Battlespace Retro: arcade game
★4.1
Space Defender Xtreme
Space Defender Xtreme
★3.7
Invaders - Classic Shooter
Invaders - Classic Shooter
★4.1
Galaxy Invader: Alien Shooting
Galaxy Invader: Alien Shooting
★4.7
Retro Space War: Shooter Game
Retro Space War: Shooter Game
★4.5
Space Wars Spaceship Shooter 3
Space Wars Spaceship Shooter 3
★4.3
Pixel Galaxy Shooter
Pixel Galaxy Shooter
★3.4
Space Invaders3D
Space Invaders3D
★4.7
Galactic Space Shooter Epic
Galactic Space Shooter Epic
★4.2
Galga Space Alien Invaders
Galga Space Alien Invaders
★5.0
Galaxy Invaders: Space Shooter
Galaxy Invaders: Space Shooter
★4.5
Galaxy Storm - Retro Invader
Galaxy Storm - Retro Invader
★3.7
Outer Space Alien Invaders
Outer Space Alien Invaders
★3.5
Vector Invaders: Space Shooter
Vector Invaders: Space Shooter
★4.4
Space Galaxy: Alien Shooter
Space Galaxy: Alien Shooter
★4.8
Galaxy Shooter - Space Attack
Galaxy Shooter - Space Attack
★4.5