Games like 2 Player Planet Defender

Here are some great alternatives to 2 Player Planet Defender by Gergely Kapitány :
Space Swift: The Sky Defender
Space Swift: The Sky Defender
★4.3
Stellar! - Infinity defense
Stellar! - Infinity defense
★4.1
Operation: New Earth
Operation: New Earth
★3.7
Invaders from outer space
Invaders from outer space
★4.1
Space Defender Xtreme
Space Defender Xtreme
★3.7
Space Cadet Defender Invaders
Space Cadet Defender Invaders
★4.5
Starscape: Rogue-like Shooter
Starscape: Rogue-like Shooter
★4.4
Galaxy Shooter: Air Force War
Galaxy Shooter: Air Force War
★4.8
Neonverse: Invaders Shoot'EmUp
Neonverse: Invaders Shoot'EmUp
★4.5
Space Wars Spaceship Shooter 3
Space Wars Spaceship Shooter 3
★4.3
Cubic Planet
Cubic Planet
★3.2
Galaxy Invader: Alien Shooting
Galaxy Invader: Alien Shooting
★4.7
Xevion
Xevion
★3.6
Stellar Patrol Space Combat Si
Stellar Patrol Space Combat Si
★4.0
Planet Survivors
Planet Survivors
★4.3
Heroes of CyberSphere: Online
Heroes of CyberSphere: Online
★4.7