Games like Idle Area 51

Here are some great alternatives to Idle Area 51 by PlaySide Studios :
Idle Anomaly: Alien Control
Idle Anomaly: Alien Control
★4.2
Find & Catch Alien UFO Games
Find & Catch Alien UFO Games
★4.2
Alien Flying UFO Space Ship
Alien Flying UFO Space Ship
★3.2
UFO Stalker
UFO Stalker
★3.2
Unnamed Space Idle
Unnamed Space Idle
★4.2
Merge Spaceship: Idle Space
Merge Spaceship: Idle Space
★3.9
Find the Alien - Alien Game
Find the Alien - Alien Game
★4.7
Operation: New Earth
Operation: New Earth
★3.8
Alien Sniper shooting game
Alien Sniper shooting game
★3.9
Xenowerk Tactics
Xenowerk Tactics
★4.6
Alien Guest: UFO arcade
Alien Guest: UFO arcade
★4.3
UFO RUSH : Alien invasion
UFO RUSH : Alien invasion
★4.0
Space Miner Simulator Game 3D
Space Miner Simulator Game 3D
★5.0
Alien Shooter
Alien Shooter
★4.0
UFO Shooter
UFO Shooter
★4.7
Idle Fortress Tower Defense
Idle Fortress Tower Defense
★3.9