5
The Unknown Horizons Team
357
Open source
2D realtime strategy simulation with an emphasis on economy and city building.
Firaxis Games
432
Commercial
XCOM: Enemy Within is the expansion of the strategy game XCOM: Enemy Unknown.
KIDware
2
Freeware
It is a math tool which solves two linear algebraic equations for two unknowns.
2
QAX
2
Freeware
The Qax Graphics Calculator is an outstanding piece of software.
5
G2 Games
118
Commercial
Enemy Engaged 2 is the second part of a classic flight simulator.
Windward Studios
9
Freeware
Enemy Nations is a sophisticated real-time strategy game.
2
OpenXcom Developers
153
Open source
It is an open-source clone of the original UFO: Enemy Unknown game.
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.
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.
Falco Software Company
Freeware
An unknown enemy turned everyone who was on the space station into cyborg zombies.
