Games like Protect the Earth

Here are some great alternatives to Protect the Earth by phj-blog :
Space Drop It!
Space Drop It!
★4.0
Save The Earth : Idle&Clicker
Save The Earth : Idle&Clicker
★3.8
Destruction of Planets Meteor
Destruction of Planets Meteor
★3.5
Universe Invader: Alien Attack
Universe Invader: Alien Attack
★4.8
Operation: New Earth
Operation: New Earth
★3.8
End of the Earth RPG
End of the Earth RPG
★4.4
Project Earth: Mine and Save
Project Earth: Mine and Save
★4.4
Terra Smash
Terra Smash
★4.1
Alien Attack Space Shooter
Alien Attack Space Shooter
★4.3
UFO Hunter
UFO Hunter
★4.3
N.E.O
N.E.O
★3.5
Meteor 60 seconds!
Meteor 60 seconds!
★4.0
Defense Legend 5: Survivor TD
Defense Legend 5: Survivor TD
★4.7
Galaxy Smash:Planet Simulator
Galaxy Smash:Planet Simulator
★3.8
Space Cadet Defender Invaders
Space Cadet Defender Invaders
★4.5
Monster Shooter: Space Invader
Monster Shooter: Space Invader
★4.4