7
Valve
3
Freeware
Alien Swarm is a free to play action game with a cooperative mode.
3
Pumpkin Games
163
Freeware
Alien Abduction is a nice and enjoyable shooter game.
Nautical Software.com
20
Commercial
Learn boat radar operation with this realistic training simulator.
5
Youdagames
446
Shareware
A wonderful simulation and time management game all rolled into one.
93
KraiSoft Entertainment
42,756
Shareware
A simple, fun and entertaining shooting game for the whole family.
Zombie Cow Studios
142
Freeware
This is a free shooter game. You play as Celestia to rescue Jack and his Marines.
Big Fat Simulations
14
Commercial
Radar Chaos is a realistic radar-based air traffic control game and simulation.
UltimateArcade
Freeware
Hang The Alien is a puzzle game where you save the alien by guessing the word.
99
PardisGame
32
Commercial
Third game in the Ben 10 game series with the story of an alien invasion.
Big Fat Simulations
16
Commercial
Radar Chaos: Hawaii edition is more of a 'simulation' than a 'game'.
1
ALTAR Interactive
224
Shareware
UFO Aftermath is a tactical game where you must repel an alien invasion.
7
UFO:AI Team
370
Open source
UFO: Alien Invasion is a squad-based tactical strategy game.
8
Ascaron Entertainment GmbH
278
Commercial
The action of this game is set in a huge universe populated by alien races.
THEADOS Corporation
1
Freeware
Crush the alien invaders in this classic-style space action game!
145
SigmaTeam
132
Commercial
Alien Shooter: Vengeance is an action game developed by Sigma Team.
