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A deep-space 4X simulation. Explore a procedurally generated universe, colonize worlds, build a realistic economy, and lead your civilization toward galactic domination. Brave ecological and economic crises, face famines, wars, and disasters, and ensure your survival!
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Match strength key:80+65+50+<50Astral 4X
SteamAbout Astral 4X

ONE PLANET AS YOUR CRADLE. THE GALAXY AS YOUR AMBITION.
It all begins on your homeworld. In Astral 4X, take command of a civilization and lead it into a vast procedural universe. Explore star systems, discover new worlds, and establish the colonies that will drive your expansion.
Develop your cities, exploit resources, and organize industry and trade. Population, infrastructure, public services, ecological balance: every decision shapes the future of your worlds. From your first planet to the farthest reaches of the galaxy, build an empire capable of enduring through the centuries.
Explore a vast procedural universe where every planet is unique, with its own landscapes, atmosphere, resources, and challenges. Throughout your journey, discover:
EXPLORE THE UNKNOWN. DISCOVER WHAT YOUR RIVALS HAVE YET TO FIND.
Beyond your homeworld, every star opens up new possibilities. In Astral 4X, travel through a vast procedural universe and discover star systems, planets, moons, and gas giants with a wide range of characteristics.
Study their environments, locate valuable resources, and assess their habitability to choose where to expand next. A hospitable world or a rich deposit of resources can shape the course of your entire expansion. Move seamlessly from the galactic map to detailed views of individual celestial bodies, and turn every discovery into an opportunity for your empire.
Every discovery can become the starting point of a new colony.

FROM YOUR HOMEWORLD TO THE FARTHEST REACHES OF THE STARS. BUILD YOUR EMPIRE.From your homeworld, expand your civilization into new star systems and turn your discoveries into thriving colonies. Choose where to settle based on habitability, available resources, and the needs of your empire. Every world presents its own challenges, it is up to you to define its role in your expansion.
Organize your expeditions, guide the arrival of the first settlers, and develop your colonies across generations. Connect your worlds through transportation routes to move resources, welcome new populations, and support your most distant territories.
Adapt hostile environments with survival infrastructure and terraforming. Automate part of your colonies’ development to manage an ever-expanding empire.

EVERY WORLD HAS ITS RICHES. EVERY CHOICE HAS ITS PRICE.
Turn the resources of your planets into economic power. Develop your colonies, organize resource extraction, and sustain your population through agriculture and infrastructure. Every world has its own reserves, biomes, and constraints: adapt how you exploit it to the needs of your empire. But growth comes at a cost. Deposits are depleted, pollution accumulates, and thriving ecosystems can become barren wastelands.
Witness the consequences of your decisions, from degraded biomes and toxic swamps to the transformation of an entire planet into a polluted world.

FACE RIVAL EMPIRES. CONQUER WORLDS.
Your civilization is not alone in its ambition to dominate the galaxy. Face AI-controlled empires, contest their territories, and send your armies to war for resources, supremacy, or survival. Take the fight to enemy worlds and defend your own colonies against invasion.
On every planet, unique geography creates new battlefronts. From localized conflicts to wars fought across multiple worlds, mobilize your military power and decide how far your empire is willing to go.
Steam data © 2026 Valve Corporation. Trademarks are property of their respective owners.
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