Top similar games like Stellaris:

Take command of your hand-tailored fleet of space warships and use realistic radar, electronic warfare, advanced movement controls in 3D space, and precision targeting to outmaneuver and outwit your opponents in a simulation-heavy tactical space game like no other.

Conquer a vast procedurally generated star system in Falling Frontier, a sci-fi RTS where intel and logistics are decisive factors. Design ships and raid enemy supply lines, lay minefields and construct recon stations, and ambush enemy forces within asteroid fields and nebulae.

Take command of a civilization that has just achieved faster-than-light travel in Galactic Civilizations IV, the newest entry in the award-winning space 4X strategy game series. Explore the galaxy, colonize worlds, shape cultures, make alliances, fight wars and pioneer new technologies.

Take the helm of a state-of-the-art warship as you fight epic space battles in a sandbox campaign. Upgrade and customize your ship, master the art of maneuvering, and use a blend of tactical prowess and heavy firepower to overcome deadly threats.

Lord of Rigel is a turn-based 4X space strategy game inspired by the classics. In a galaxy divided by two elder races, will you unite with other species or forge your own path? Navigate galactic politics and defeat threats using espionage, research, and military force. How will you shape the galaxy?

Play campaign stories within the Galactic Ruler universe. Invade the galaxy to eliminate those who stand in your way or rally alien races to defend against the invaders. Fight battles at both planet and space across a procedurally generated galaxy. Use new unit control systems to manage your forces.

ENDLESS™ Space is a turn-based 4X strategy game, covering the space colonization age in the Endless universe, where you can control every aspect of your civilization as you strive for galactic domination.

Distant Worlds is a vast, pausable real-time 4X space strategy game. Experience the full depth and detail of turn-based strategy, but with the simplicity and ease of real-time, and on the scale of a massively-multiplayer online game.  

HARD VOID is a 4X turn-based space strategy game in a lovecraftian universe. Lead your species across galaxies and multiple dimensions to build an Empire. Design your spaceships, assemble your fleets and fight for supremacy. But beware, unthinkable Eldritch horrors lurk in the vast darkness.

Save humanity from the brink of extinction in this sci-fi strategy game of survival. Travel among the stars to seek out resources, establish and develop colonies to sustain civilization, and grow your military might to push back against an overwhelming threat.

Existence is a strategy game on a massive scale. Lead your expanding empire, explore the galaxy, and master simultaneous space and planetary battles. Engage in solo play or team up with friends for intense PvP and co-op action.

Command a space-faring empire in Sins of a Solar Empire: Rebellion, the new stand-alone expansion that combines 4X depth with real-time strategy gameplay.

Alliance of the Sacred Suns is a sci-fi grand-strategy RPG that begins with your coronation as the head of an interstellar Empire, and ends with your demise. Manage feuding noble houses and the schemes of would-be usurpers as you try to revive the glory of an Empire on the brink of collapse.

From the creators of AI War: Fleet Command comes an all-new grand strategy title with turn-based tactical combat, set in a deep simulation of an entire solar system and its billions of inhabitants. You are the last of a murdered race, determined to unify or destroy the 8 others.

Rule your land and dominate the world with unparalleled freedom, depth and historical accuracy. Write a new history of the world and build an empire for the ages.

From the creators of Long War, an alien invasion has fractured humanity into seven ideological factions each with a unique vision for the future. Lead your chosen faction to take control of Earth’s nations, expand across the Solar System, and battle enemy fleets in tactical combat.

Beyond Astra is a real-time 4X sci-fi grand strategy game. Expand your own civilization, explore captivating and mysterious planets and star clusters, interact with your citizens and other life forms and shape your destiny through nearly infinite possibilities.

Sid Meier’s Civilization: Beyond Earth is a new science-fiction-themed entry into the award winning Civilization series. As part of an expedition sent to find a home beyond Earth, lead your people into a new frontier, explore and colonize an alien planet and create a new civilization in space.

AEU is a fast paced realtime strategy and 4x hybrid. Players influence their empire to grow, fight, forge alliances or engage in trade. Players are given control over the empire's traits, research and a set of three types of abilities(Construction, Plagues and Agents) to accomplish their goals.

Old World is a revolutionary new historical strategy game where you lead your dynasty over generations of rule against rival kings and queens. Wage massive wars, manage your court, and build a dynasty — or watch your empire crumble to dust. What legacy will you leave behind?

Carefully guide your nation from the era of absolute monarchies in the early 19th century, through expansion and colonization, to finally become a truly great power by the dawn of the 20th century. Victoria II is a grand strategy game played during the colonial era of the 19th century, where the player takes control of a country, guiding...

Explore one of the defining periods in world history in an experience crafted by the masters of Grand Strategy.

ENDLESS™ Space 2 is a Strategic Space Opera, featuring the compelling “just one more turn” gameplay, set in the mysterious ENDLESS™ Universe. As the leader of your civilization, will you impose your vision and build the greatest stellar empire?

Interstellar Space: Genesis is a turn-based space 4X strategy game in which you attempt to build a thriving galactic empire. Discover mysteries among the stars, colonize worlds, and engage enemies in tactical turn-based combat on your journey to becoming the ruler of the galaxy!

Get the complete GalCiv II saga including Galactic Civilizations II: Dread Lords, the expansion pack Dark Avatar, and the newest expansion pack Twilight of the Arnor!

Paradox Development Studio invites you to build your ideal society in the tumult of the exciting and transformative 19th century. Balance the competing interests in your society and earn your place in the sun in Victoria 3, one of the most anticipated games in Paradox’s history.

You are the first sentient AI, born into a city filled with endless opportunities. Raise an army of robots and obliterate your foes, become a benevolent machine overlord, or explore countless other objectives and the many paths to accomplish them.

Evolve from being a nobody to being the center of power! Age of space combines real time resource management with tactical combat. Work as a mercenary for clients in our solar system as you gradually get dragged into a liberation war between the Martians and the UEA. Who will you side with?

Astronomics Rise of a New Empire is an easy-to-learn real-time global strategy(4X) game. Control your faction in an intergalactic conflict. Manage your economy, conduct diplomatic negotiations and build a fleet to rule the galaxy.

Gate Builders is a sci-fi turn-based 4X strategy game. Build space stations, manage work force, exploit, trade and transform resources. Face space pirates and enemy factions. Build, Expand, Thrive!

Horizon is a turn-based space strategy game of galactic exploration and conquest in which you are in control of humanity’s destiny. You will explore deep space, find new frontiers and discover alien artifacts hidden on long-abandoned planets.

The Pegasus Expedition is a story-driven sci-fi grand strategy game set in a key moment for humankind’s survival. Facing an overwhelming threat at home, humanity sends expeditions to the Pegasus Galaxy in a desperate attempt to find a refuge for the population of Earth.

Galactic Ruler offers real time strategy game play at both planetary level and in space! Lead your faction in diplomacy or conquest across a procedurally generated galactic map where any system might hold hostile enemies or resource riches. Develop advanced technologies to rule the galaxy!

Solar Wave is a cosmic opera 4X strategy game with indirect control. Capture systems, develop the economy, trade, explore the world, summon powerful fleets, and watch them incinerate the enemies of the Solar Empire.

Expand your own galactic empire across new stars, research technologies, and challenge great alien powers in this immersive 4X grand strategy game. Build interstellar colonies, and starbases to gather more resources. Explore a unique galaxy full of secrets, great perils, and limitless possibilities.

A sci-fi turn-based 4X strategy game where you lead the fate of one of several factions divided between three races. Explore new worlds and new star systems filled with exciting secrets as well as dangers. Build cities, expand your influence and fight great battles on land and in space.