Prepare yourself to explore the galaxy, research new technologies, meet new alien civilizations and develop a galactic civilization that will pass the test of time.
As leader of a fledgling interstellar species, it’s up to you to guide your people to develop new worlds, construct new kinds of starships and fight wars to ensure your civilization survives in what is often a hostile universe.
4X Meets Grand Strategy
eXplore, eXpand, eXploit and eXterminate are just the start! Our in-game storyteller is combined with a sophisticated AI strategist to ensure that the living, lore rich universe you are experiencing is also populated with opponents who follow their own agendas and wield the intellect to make good on them.
Design Your Own Cosmic Legacy
Unleash your creativity with the unrivaled power of AlienGPT by describing your civilization’s characteristics, preferences, and aspirations, and watch our AI weave them into distinctive lore, diplomatic dialogues, starship selections, and ambassador portraits.
Play Tall or Wide
Govern as few, or as many, worlds as you like with the Core World and Colony split system. Tall play is viable by linking many Colonies into just a handful of Core Worlds, greatly increasing their resource output. Alternatively, many lower class planets can be manually improved and developed for a super-wide playstyle.
Craft Custom Interstellar Fleets
Harness your creative abilities to construct interstellar armadas with the Ship Designer, a feature that allows you to design and customize your own interstellar spacecraft. With an array of options for hulls, weapons, engines, and more, you can create a fleet that perfectly suits your strategy and style.
Forge a Unique Empire
With setup options that allow the player to play games lasting less than an hour, or for months, Galactic Civilizations IV supports many viable strategies. Create or play as a civilization with deep diplomatic and cultural abilities or play as a ravenous species bent on spreading to every world in the universe: Galactic Civilizations offers a deep set of options to ensure your style of play is rewarded.
Claim Victory Your Way
Conquering your rivals with force of arms isn’t the only way to win - enlighten the galaxy with superior cultural influence, navigate treacherous diplomatic waters to unite your rivals under your leadership, or earn a Prestige Victory with difficult Galactic Challenges.
Never The Same Game Twice
Experience thrilling adventures within procedurally generated galaxies teeming with surprises. Engage with a multitude of galactic events and rival civilizations to ensure every game is a unique and exciting experience, filled with challenges and opportunities.
Login or register at the official Steam Website and download Steam client
Install and start application, login with your Account name and Password
Click the Games Menu.
Choose Activate a Product on Steam...
Follow the onscreen instructions to complete the process
After the successful code verification, go to the "MY GAMES" tab and start downloading.
News & Updates
2025-11-24
We Don’t Do Black Friday, We Do Better!
You want to get the best gaming price deals available on the market, right? Well, look no further than our ANTI-BLACK FRIDAY promotion then, as we got a storewide campaign that would blow you away not just for a single day or a weekend, but for a total of 5 whole days. That is far from everything though, just make an order of at least 20€ between 26.11.2025 12:00 CET and 01.12.2025 15:00 CET, and you will get a FREE game…
Tired of Fake Black Friday Discounts? Score Some Real Deals Instead
Amidst the craze that usually happens at the season of drop-down MEGA sales, we actually are not finding it hard to offer outstanding prices to our audience, as we do that on a pretty regular basis. Almost every year at the time for BLACK FRIDAY the prices around the market get slightly heightened and then reduced in a way to mimic major drops and discounts to the clients, but we do not favor such bad practice and this is why we decided to do something more different...