Galactic Civilizations III: Core Edition

What if one day, humans woke up to find that they weren’t alone in the galaxy? They make their way into space and discover other alien civilizations with their own histories and motivations looking to make a name for themselves. Choose your race - Human, Drengin, Altarian, and so many more - and lead your civilization into a golden age in one of the largest 4X strategy games ever made!

Research new technology, design starships, and colonize new worlds as you face threats and conquer challenges from new and mysterious sources. Negotiate trade and treaties, wage wars, spy on your enemies, and promote outstanding citizens. And when you've finished that, play again as one of the many included alien civilizations each with its own history, technology tree, ship components, and more.

Galactic Civilizations III now includes the Crusade expansion and Mega Events add-on content for an even greater gameplay experience! Join the ranks of galactic leaders today, and answer the question: how will you rule your galaxy?

Each new game offers an array of options as you set it up - choose your map size, abundance of planets and resources, frequency of events, and more for a unique play experience every time. Galactic Civilizations III also removes linear victory conditions and offers you multiple objectives that you can choose to pursue in order to win, such as military conquest, cultural domination, technological ascension, or political alliances. The new multiplayer capabilities also allow you to expand your challenges and fights beyond an AI in order to face off against fellow players. All of this, topped with a rich and in-depth custom ship designer ensure an immersive and exciting experience as you decide how to rule your galaxy. CORE FEATURES:

The ultimate sandbox experience: Each game has a unique map, worlds, and challenges to face -- all on a massive scale. Play against 16 to 100 opponents.
Multiple paths to victory: Win through military conquest, cultural domination, technological ascension, or political alliance.

Create your own history: Each sandbox game lets you create a new future history for your civilization.

Story-based campaign: Learn the ancient histories of the alien civilizations and one possible future for the human race.

Massive technology tree: Research a technology tree with immense breadth and depth. Each playable faction has their own unique specializations. Your choice determines how you play and win.

Faction & Ship Customization: Create a civilization with its own look, ships, technologies, and even options for how the AI will use them.

Multiplayer: Play online with friends with full support for custom civilizations, saved multiplayer games, and much more.

A deep economy:
Every world is unique with many different resources that can change the course of your strategy each game.

Planetary Governors: Utilize individual planetary leaders to govern your worlds, deciding what improvements to build and when, which leaves you to focus on larger strategic goals.

Civilization Builder: Create a custom faction complete with leader, ideology, and abilities. Customize your own galactic navy and create unique dialogue for your faction.

Invasions: Train your citizens to be soldiers and invade enemy worlds. Carefully plan your attacks, and don’t forget to leave your homeworld defended, too!

Espionage: Spies can steal technologies, circulate rumors to create civil unrest, sabotage enemy worlds, or even go so far as to assassinate enemy citizens.

Galactic Citizens: Shape the course of your civilization’s destiny with talented individuals called citizens. Choose from over a dozen unique roles - commander, engineer, farmer, celebrity, and more.

Complex Decisions: Use skill and strategy to overcome unexpected challenges

Galaxy-wide Events: Deal with issues on a galactic scale

Guide your Civilization: Comfort your people through assassinations of beloved leaders, choose how to handle the discovery of a mysterious alien artifact, face down the Dread Lords, and more.
Digital Download
$39.99Buy Now


  • Base Game
  • Crusade Expansion
  • Mega Events DLC


System requirements


  • 64-bit Windows 10 / 8.1 / 8 / 7
  • Processor: 1.8 GHz Intel Core 2 Duo / AMD K10 Dual-Core
  • Memory: 4 GB RAM
  • Graphics: 512 MB DirectX 10.1 Video Card (AMD Radeon HD5x00 Series / Nvidia GeForce 500 Series / Intel HD 4000 or later)
  • DirectX: Version 10
  • Network: Broadband Internet connection
  • Hard Drive: 12 GB available space
  • Sound Card: DirectX Compatible Sound Card
  • Free Steam client


  • Processor: 2.3 GHz Intel Core i5 Processor or Equivalent
  • Memory: 6GB RAM
  • Graphics: 1 GB DirectX 10.1 Video Card
  • Hard Drive: 15 GB Space

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