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Imperium Galactum

Description official description

Not to be confused with the much, much later Imperium Galactica, this was the first fully-functional commercial "4X" space game to hit the U.S. Many of the most important features in later 4X games appeared in this one: ship design, guerrilla warfare on captured planets, troop transports. It did not feature tactical space battles, however.

The main game screen displayed a grid of dots, with star systems shown by a larger circle with a color representing the star's type. Stars could have zero, one, or two inhabitable planets. Warships could be custom designed and were tracked individually with a maximum of 255 war ships per player in existence at one time. Transports could carry either colonists and troops and traders carried metal or food surpluses to where they were needed. During an invasion, the respective armies from each player would fight until one force was destroyed. However, planets thus captured could suffer from guerrilla resistance for several turns and if not eradicated could overthrow the invaders or assist your opponent's armies in the event of a counter invasion.

Given the tiny systems it ran on, this game did a very good job of simulating many important considerations, and was the first introduction of some of the things that have become staples in 4X space games; most notably ship design and refits.



Credits (Apple II version)

10 People

Game Design
Game Development
Customized Disk Operating System
Art & Graphic Design
  • Abra Type
  • A&a Printers and Lithographers


Related Games

Released 1990 on DOS, Amiga, Atari ST
Released 1992 on SNES
Released 2008 on Browser
Released 2015 on Macintosh, Windows, Browser
Gwiezdne Imperium
Released 1988 on ZX Spectrum
Imperium Galactica
Released 1997 on DOS, 2016 on Windows
Imperium Romanum
Released 2008 on Windows
Astrox Imperium
Released 2019 on Windows
Mappa Imperium
Released 2021 on Windows

Identifiers +

  • MobyGames ID: 11017


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Contributors to this Entry

Game added by weregamer.

Atari 8-bit added by Kabushi.

Game added January 8th, 2004. Last modified February 22nd, 2023.