Top similar games like Galaxy Union:

The ascendant spacefaring 4X strategy game returns! A new chapter in the epic Master of Orion saga is poised to once again capture the imaginations of millions of gamers.

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.  

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?

"You are outgunned. You are massively outnumbered. You must win." These are your orders. Humanity has already fought its war against the machines -- and lost. AI death squads stand watch over every planet and every wormhole, the few remaining human settlements are held captive in orbiting bubbles, and the AIs have turned their...

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.

The Enhanced Edition contains Sword of the Stars II: The Lords of Winter and the first expansion, the End of Flesh. The new expansion introduces the new playable race, the Loa. All previous DLCs containing new avatars, new combat music, alternate voices, skins, and new badges for the warships are also included.

Build a star empire without a game hurrying you along. Everyone moves together, usually once an hour – for weeks. Settle planets, raise fleets, forge alliances. The same empire on PC, phone and browser. No in-game purchases.

Forge an empire in a universe where population growth is stripping away planetary resources. Colonize unknown planets and trade with other races for their knowledge.

Real-time 4X grand strategy in a galaxy of cathedral worlds and institutions ten thousand years old, where three powers fight over the ruins the Long Silence left. Rule up to 10,000 star systems, use macro tools that work across the whole empire, with the numbers you need to decide in front of you.

A space 4X game. Colonize planets and annihilate enemy races in an intergalactic war for living space. Designed to be fun, fast, and easy to play.

Build a planetary empire, research game-changing tech, and raid real players across a persistent galaxy. The classic browser space strategy, reborn - and finally fair: no pay-to-win, ever. Team up for 8-fleet combined attacks. Your mines keep working while you sleep.

Explore a galaxy full of wonders in this sci-fi grand strategy game from Paradox Development Studios. Interact with diverse alien races, discover strange new worlds with unexpected events and expand the reach of your empire. Each new adventure holds almost limitless possibilities.

Forge an empire in a universe where population growth is stripping away planetary resources. Colonize unknown planets and trade with other races for their knowledge.

Shattered Spheres is a turn-based 2D space 4X strategy game inspired by the classics of the genre. Explore a living galaxy, build your empire, and crush your rivals through military conquest or diplomatic cunning — without the micromanagement bloat of modern 4X games.

Planeticus offers to conquer new planets in the company of friends or strangers. The essence of the game is to capture planets, manage resources, create as many of your own super planets as possible and generate space invaders.

Embark on a journey of strategy and domination in Moons That Belong, a 2D space strategy game that challenges your tactical prowess. Command your fleet, conquer planets, and outsmart your opponents in this visually captivating and intellectually engaging adventure.

Expand your empire one sector at a time in a fast-paced turn-based 4X strategy game. Capture planets, harvest resources, command powerful fleets, and adapt your strategy with unique Emperors and unpredictable divine interventions. Play solo, or challenge rivals in tactical PvP.

Fight in the endless war for resource in the vast universe. Explore the galaxy to find resource-rich planets, defeat enemies stationed in, mine planets, expand your power and conquer the galaxy. Become the greatest conqueror of the universe right now.

Lead humanity's first deep survey beyond Sol in a research-first space strategy game. Explore star systems, investigate worlds, deploy probes, and turn scientific discoveries into strategic power.

Tachyon Wars is a sci-fi real-time space strategy game. It introduces seriously deep gameplay with an emphasis on fleet control. Open space to explore, large-scale battles, crafty AI. All of it is well seasoned with novel real-time game mechanics.

Battle for galactic dominance in this real-time 4X strategy game with unrivaled scale! You’ll explore, expand, exploit, and exterminate through military force, diplomacy, trade, culture, influence, and other underhanded tactics.

A fast-paced 4X galaxy you can actually finish. Expand by colonising and besieging rival worlds, wield government powers that bend the rules - freeze enemy fleets, sever hyperlanes, vanish into stealth - and race rivals to claim the galactic core. A grand-strategy empire in an evening, not a month.

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?

Project Sol is a Sci-Fi colony sim set in the future when you civilization is just beginning to reach for the stars. Take control of your Empire, build massive orbital satellites, defend from roving pirates, and conquer the galaxy!

Take command of the war machine of an empire in this 4x RTS hybrid. Fight battles with your flagship fleet in fully 3D real-time space combat. Recruit, train and dispatch commanders. Give them orders, directives and equip their fleets. Manage your empire’s supply logistics and fleet operations.

Assume command of a battle fleet and deploy immediately to the Dust Zone, commander. Our main food supply station has gone dark and the United Earth Nations (UEN) needs to know why in this 4X RTS space sim. Manage your ships, control space stations, and watch your back.

As a space bear, human or any other race, venture forth into the galaxy, create custom ships, conquer new worlds, build new colonies and defend your very existence against those who would take what is yours.

"Fire and Dark Stars" is a real-time 4X strategy game. You can grow your base, build your fleet, search for enemies, and destroy them. You need to carefully manage your resources, set up and protect your supply lines, so that your fleet does not run out of ammo and fuel.

Veyrasol is a real-time MMO strategy game set in the Veyra Spiral galaxy. Build colonies, command fleets, forge alliances, and battle for dominance across ~120-day seasons in this free-to-play browser-born strategy experience.

Command carrier fleets across a pausable real-time galaxy. Build planetary industry, confront strange anomalies, bargain or betray rivals—or become the galaxy’s Pirate Syndicate, turning piracy and Plunder into ever-stronger raids.

Ultakia is a turn-based space 4X strategy game with distinctive resource management. Explore exotic systems and acquire powerful technologies. Exploit your planets, trade with other races and destroy those who stand in your way.

A team-based strategy and space simulation game where allies build an empire together while competing to control it. Explore, trade, colonize, scheme, and fight tactical battles shaped by stealth, sensors, and deception.

Space 4X game with the ability to build factories, extract resources, with characters, internal and external markets ... Take part in the discussion of the game, share your vision)

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.

Build an interstellar civilization in a turn-based 4X strategy game. Explore a configurable galaxy, colonize new worlds, design warships, manage a complex economy, and outmaneuver rival empires through diplomacy, espionage, or war.