Games about fighting against an invading alien horde.
Star Raiders
Atari 8-bit
March 1980
@836Contra
NES
1987
@446Alien Syndrome
System 16
1987
@1726StarCraft
Windows
1998
@93Earth Defense Force 2017
Xbox 360
2006
@569Gears of War
Xbox 360
2006
@33Gears of War 2
Xbox 360
2008
@26Halo 3
Xbox 360
2008
@128Halo: Reach
Xbox 360
2010
@206Earth Defense Force: Insect Armageddon
Xbox 360
2011
@576Crysis 2
Xbox 360
2011
@378Gears of War 3
Xbox 360
2011
@320XCOM: Enemy Unknown
Xbox 360
2012
@470Halo 4
Xbox 360
2012
@476Gears of War: Judgment
Xbox 360
2013
@562Earth Defense Force 4.1: The Shadow of New Despair
PlayStation 4
2015
@1515Halo 5: Guardians
Xbox One
2015
@1457Alienation
PlayStation 4
2016
@1646Captain Commando
PlayStation 4
2018 (orig. 1991)
@2054