Ufo games : alien invasion
Strict games
Alien Flying UFO Space Ship
Tap Dog Studio
2.7
Alien Guest: UFO arcade
STM GAMES FZCO
Alien Hero Omnitrix Glitch
ABDO MOHSSINE
Alien Detector : Alien Radar,
Game Palette
ET Chat Alien Contact UFO
Marcus Ferron
4.1
Space, Aliens & UFOs
PlayNow Media
Stellar Wind Idle: Space RPG
Entropy Games Studio
4.2
Space Survival: Mars RPG Game
Gem Jam
3.9
Ufo Wallpapers
DacAppsDev
Galactic Colonies
MetalPop Games
4.0
Starborne: Frontiers
Solid Clouds hf.
4.6
Spot the Station
NASA 
4.9
Evolution Galaxy: Mutant Merge
Tapps Games - PT
3.9
WarUniverse: Cosmos Online
Better Games d.o.o.
4.0
Night Sky Guide - Planetarium
Star Registration
4.2
Find the Alien - Alien Game
MOONEE PUBLISHING LTD
4.5
UFO Simulator : Crazy UFO
Wiggle Woggle
Raiden Fighter: Alien Shooter
GameLord 3D
4.7
Operation: New Earth
Tilting Point
4.2