Best Universe

UFO: Enemy Unknown

4.7

X-COM: Terror from the Deep (1995)

4.7

Space Tower Defense 2

4.5

Space Pin Master

4.4

Galaga Assault

4.4

Aliens in Chains

4.4

Space Adventure Pinball

4.4

Alien Attack

4.3

Space Frontier Online

4.3

Galactic Judge

4.3

Destination Kepler!

4.3

Arcane Weapon

4.3

Shop Empire Galaxy

4.3

Nyan Cat Lost in Space

4.3

Space Bubbles

4.3

Solarmax

4.3

Adam and Eve: Astronaut

4.2

Effing Hail

4.2

Recapture 2

4.2

Planet Demolisher

4.2

Defense Alien War

4.2

Space Blaze

4.2

Helios

4.2

Space Rush

4.2

Symphony

4.2

National Defense: Space Assault

4.2

Stellar Shooters

4.2

Planet Defense - G10

4.1

Atari Asteroids

4.1

Gravitee Wars

4.1

Defense Alien Wars

4.1

Aliens

4.1

Clash n Slash

4.1

Princesses Just Another Galaxy

4.0

Imposter Galaxy Killer

4.0