Interstellar Space: Genesis Evolving Empires

Interstellar Space: Genesis Evolving Empires is an expansion that adds evolution trees for races, minor civilizations to discover and engage with, seven leaders and two music tracks.

Evolve your race

Each race has a highly asymmetric space culture tree tailored to it, with thematic, multipart perks that can alter gameplay. You choose between divergent paths and make strategic decisions about how to evolve your empire; opening one path may close another. A tree is available to its own race and to custom races assigned to use its affinity. Expansion races also receive their own evolution trees.

Minor civilizations

Pre-warp minor civilizations are scattered randomly throughout the galaxy. You discover and survey them, then work to earn their trust by understanding them. Building a deeper relationship can bring benefits, but other empires may also seek the powerful bonuses. You can instead destroy a minor civilization and deny its benefits to others.

There are seven categories of minor civilizations, with three civilizations in each category. Which ones appear in a galaxy is not known in advance.

Leaders and music

Seven new leaders, one representing each minor civilization category, can serve an empire if they consider it worthy of their trust. The expansion also adds two Starmap music tracks inspired by Evolutions and Minor Civilizations.