Alexander Barnfield and Jakub Majewski
1
Freeware
Unknown Enemy is a fan made add-on for Wing Commander: Secret Ops.
Falco Software Company
8
Freeware
After working for decades in the special forces, I retired.
7
UFO:AI Team
370
Open source
UFO: Alien Invasion is a squad-based tactical strategy game.
2
OpenXcom Developers
153
Open source
It is an open-source clone of the original UFO: Enemy Unknown game.
1
ALTAR Interactive
226
Shareware
UFO Aftermath is a tactical game where you must repel an alien invasion.
4
Sean O'Connor's Windows Games
4
Shareware
In Windows Games UFOs you have to grab the crystals and dodge the enemies.
1
MyPlayCity, Inc.
181
Freeware
Petro the soldier is a great game, where a hero must fight against enemies.
36
Splash Damage
3,014
Freeware
Wolfenstein: Enemy Territory is a downloadable, free-to-play multiplayer game.
Firaxis Games
432
Commercial
XCOM: Enemy Within is the expansion of the strategy game XCOM: Enemy Unknown.
1
Firaxis Games
773
Commercial
XCOM 2 is the sequel to XCOM: Enemy Unknown, strategy game.
Long War Studios
49
Freeware
Long War is a free mod for the 2012 game XCOM: Enemy Unknown.
NowStat
28
Freeware
Guide the super soldier through the enemy territory.
Falco Software Company
263
Freeware
Soldier! You must take up arms and go destroy the enemy.
Falco Software Company
1
Freeware
A special purpose soldier, left alone behind enemy lines.
1
xehonk
7
Freeware
It is an overhead view shooter in which you are caught in an unknown enemy base.
MyPlayCity, Inc.
40
Freeware
Set the town free from an unknown enemy in this first person shooter.
Falco Software Company
8
Freeware
Peaceful lands are invaded by an unknown enemy.
Falco Software Company
4
Freeware
The commander, our ships, met a new unknown enemy in the galaxy.
