Games like Space Defender Xtreme

Here are some great alternatives to Space Defender Xtreme by Scratchmark :
Invaders Mars Defender
Invaders Mars Defender
★4.6
Classic Phoenix
Classic Phoenix
★4.1
Space Cadet Defender Invaders
Space Cadet Defender Invaders
★4.5
Invaders Deluxe
Invaders Deluxe
★4.1
Space Swift: The Sky Defender
Space Swift: The Sky Defender
★4.3
Battlespace Retro: arcade game
Battlespace Retro: arcade game
★4.1
Classic Invaders Retro
Classic Invaders Retro
★4.3
Galaxy Storm - Retro Invader
Galaxy Storm - Retro Invader
★3.7
Sea Invaders - Alien shooter
Sea Invaders - Alien shooter
★4.5
Celestial Assault
Celestial Assault
★4.1
Galga Space Alien Invaders
Galga Space Alien Invaders
★5.0
Galaxy Invaders: Space Shooter
Galaxy Invaders: Space Shooter
★4.2
Retro Space War: Shooter Game
Retro Space War: Shooter Game
★4.5
Monster Shooter: Space Invader
Monster Shooter: Space Invader
★4.5
Space Shooter - Galaxy Attack
Space Shooter - Galaxy Attack
★4.1
Galaxy Shooter: Air Force War
Galaxy Shooter: Air Force War
★4.8