[citation needed] Pax Imperia: Eminent Domain was released in 1997 as a sequel, for both the Mac and PC.

Like most 4X games, Pax Imperia's basic gameplay involved building spaceships and flying to other worlds in order to take them over.

Unlike most other 4X games, Pax had much more complex solar systems, including moving planets, their moons, and a habitable temperature zone that varied depending on the star and the race's preferences.

Options included which atmosphere type they breathed (oxygen, nitrogen, carbon, or hydrogen), temperature range and tolerance, and four percentile-rated attributes: curiosity, efficiency, reproduction, and aggression.

These attributes impacted the race's rate of scientific discoveries, building speed, population growth, and on-planet combat effectiveness, respectively.

The ship design was based around a fixed selection of "hulls" which differed primarily in mass, materials cost and the number of attachment points for technologies.

While calling it "a work in progress", the magazine concluded that "the quality of Pax Imperia more than outweighs its blemishes ... a pleasing and challenging addition to its genre".

Macworld called it "lavishly presented" and "a superb exploitation of the Mac interface", concluding that it is "a space odyssey with truly operatic grandeur.