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
2025-09-11
Dying Light: The Beast – A Brutal New Era of Parkour and Terror
After the pure delight that was GAMESCOM we surely have to shift our attention to some of the more outstanding titles we enjoyed there and Dying Light: The Beast is definitely one of them that stood out to us! The Dying Light series is making its come back very soon and for this one you are going to once again take on the role of Kyle Crane. After the long years of brutal torment and inhumane experiments performed on him, he barely made it out, but the shocking reality…
Gaming has grown into a global phenomenon, so of course it earned its own special day! It first kicked off in the 1990s and was originally marked on July 8th, before officially moving to September 12th. To celebrate this year, we’re running a huge YUPLAY storewide promo! Everyone who places an order between 10.09 CET and 17.09 CET will be automatically entered — and at the end, 21 lucky winners will receive a full refund of their order.
