Earth Defense Force, known in Japan as Chikyū Bōeigun, is a series of third-person shooter video games. The series is published by the Japanese company D3 Publisher as part of the Simple series.

Story – Earth Defense

In 2013, radio waves from deep space are picked up by scientists, proving the existence of extraterrestrial life. The Earth Defense Force, a unified multinational military, is founded a few years later, in case the aliens prove to be hostile. In each of the games the player assumes the role of an EDF soldier during an alien invasion.

Games

Main series

Monster Attack (2003)

The first game in the series was originally released in Japan as Simple 2000 series Vol. 31: The 地球防衛軍 for the PlayStation 2. Chikyū Bōeigun was created by Sandlot as part of D3 Publisher’s Simple series of budget-priced games on a compact disk. It was later distributed in PAL format on CD in Europe by Agetec, Inc. under the title Monster Attack.

Global Defence Force (2005)

Chikyū Bōeigun 2 is the second game in the series, released for the PlayStation 2. The game was released in Europe as Global Defence Force but was not released in North America.