Top similar games like Galactic Ruler:
Galactic Ruler $19.99
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!
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New Stars$19.99
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.

Interstellar Space: Genesis$29.99
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!

AI War 2$19.99
The most devious and acclaimed artificial intelligence in strategy gaming is better than ever. A grand strategy/RTS hybrid that reverses many conventions of both genres. Take territory without attracting attention, build your empire with care, and adapt to an ever-evolving galactic battleground.

Horizon$29.99
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.

Periphery Online$9.99
A refugee capsule lands on an uninhabited planet. You have to survive, rebuild civilization and, if possible, regain control over the Earth. One big universe, one endless pvp session for all players.

Sins of a Solar Empire®: Rebellion$19.99
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.

StarMade$14.99
The ultimate space sandbox. Participate in epic fleet battles, form alliances, strive to dominate entire galaxies and harness the universe’s resources for your industrious empire or the destruction of others. Customise your experience, the universe is yours!

Gemini Wars$9.99
Take control of a fleet commander returned from exile, rise through the ranks of the United Space Federation forces and join an epic war across the stars.

Stellar Sovereigns$24.99
Indie 4X space strategy game with TB empire management and RTS combat set in a 3D star cluster. Build an interstellar empire by colonizing and conquering star systems, develop your colonies establish trade routes and construct fleets from a range of retrofittable capital & escort class vessels.

Star Conqueror 舰队指挥官$14.99
Engage in real-time battles with customizable space warships. Explore the galaxy, forge alliances, develop powerful ships, and defeat alien invaders.

Galactic Crew II$13.99
Galactic Crew II is a roguelike space exploration game inspired by FTL and the classic XCOM games. Explore a hostile galaxy with your valorous crew from its center to the outer reaches of space, clawing your way up from a nobody to a galactic pioneer through colonization, commerce, and combat.

Uncharted Space - project 3062$59.99
In this game, you are a leader, leading a force of army to fight other forces in the deep spaces. You will plunder their resources, build your homelands, explore and expand, managing your army both strategically and tactically. This will be a saga written with blood and fire.

Industries of Titan$29.99
Create a sprawling industrial city. Compete with other rival corporations on Titan for resources, territory, and power. Seek victory via technology, influence, warfare, or the wealth extracted from your citizens. Stake your claim to the Industries of Titan in this innovative sim/strategy game!

Reshaping Mars$9.99
「Reshaping Mars」is a colony simulation game on Mars, you will start by gathering resources, storing food, accepting immigrants, and building a better colony together. Develop powerful technologies for Mars Reshaping, make Mars great agai..sorry, just great. Don't forget to make the residents happy.

Void Destroyer 2$9.99
Start with nothing... End with everything! All you have is a basic ship, barely fit for combat, with it you'll start your journey and empire. A open world space sandbox, inspired by and expanding the classics.

Lord of Rigel$19.99
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?

Microcosmum 2$14.99
A relaxing strategy game featuring unconventional gameplay. Your objectives include development, evolution, border expansion and protection of your hive.

Advisors at the End of the Universe$4.99
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.

The Pegasus Expedition$19.99
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.

AI War: Fleet Command$9.99
"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...

Near Sol$7.99
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)

Starport Delta$24.99
Build amongst the stars in Starport Delta, a light sci-fi strategy game that focuses on survival. Station Commanders across the universe will turn to you for guidance to expand, defend, and survive. Help them build a thriving station, but watch out, there are many dangers hiding in space...

Solar War$4.99
A turn-based grand strategy game in space, set in the near future: Defend Earth against an alien invasion from the edge of the Solar System and expand your campaign to push them back to their base.

CHAOTIC ERA$16.99
AT THE LIMITS OF EARTH, AT THE EXTREMITY OF HEAVEN. A REAL-TIME STRATEGY NIGHTMARE.

Dust Fleet$19.99
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.

The Last Federation$19.99
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.

Natural Selection 2$4.99
A fast paced multiplayer shooter that pits aliens against humans in a strategic and action-packed struggle for survival!

Final Upgrade$19.99
Help humanity to spread throughout the cosmos by exploring new worlds, building space factories and setting up trade routes. Research advanced technologies to increase efficiency and unlock new paths of development. Fight off other artificial intelligences in your goal to reach the Final Upgrade!

Planetary Annihilation: TITANS$29.99
Wage war across entire solar systems with massive armies at your command. Annihilate enemy forces with world-shattering TITAN-class units, and demolish planets with massive super weapons!

Creeper World 4$24.99
The unstoppable fluid enemy has returned and destroyed every world in its path! Defend against Creeper as it floods across the 3D terrain in this real time strategy game where the enemy is a fluid.

Space Colonizers Idle Clicker$2.99
Space Colonizers is a simulation and strategy idle game of Sci-Fi adventure theme. To explore more planets and meet cute aliens, you have to constantly install parts and upgrade spacecraft.

Admiral Stepinski$14.99
A multiplayer, tactical, real-time strategy with spaceships

Structura$7.99
Structura is a rather unique sci-fi real-time strategy set in space. Its a hybrid of rts and fps, with emphasis on combat and survival. Build your economy for war, modify the unit by adding components, explore, expand, and survive the savage waves of enemy attacks.

Expansion VR$14.99
Expansion VR is a tower rush RTS designed for Virtual Reality, featuring indirect control mechanics. Collect units, build your forces, and take down your opponent’s base in fast-paced battles against players or AI.

Astraeus$14.99
Astraeus is a VR asteroid mining RTS game that's quick to play, easy to learn, and enormous in scope. Build a mining network from dozens of bases, and watch as hundreds of ships swarm around you.

Original War$9.99
An American geological expedition, under a UN mandate, assesses the natural resources in a distant part of Siberia, deep in the trackless steppes of Eastern Russia. But instead of oil, they discover a deposit of a hitherto unknown mineral.

Universal Combat CE$9.99
The ultimate space capital ship combat compendium is the evolution of hard core space combat sims. The only game of its kind currently in existence.

Million Star Ship$9.99
This is a single player defense game for interstellar strategy. We have established 36 birth points. Players can freely switch birth points to control the size of the enemy. Set the moon as a base. Our fleet can conquer the universe and find legendary warships. Our journey is the sea of stars.

Hope of HumanityFREE
Engage in the construction of your station from a variety of different modules. Create your space fleet. Protect your base from enemies...

IFO$3.99
A spaceship simulator for aliens, an ever-changing rule discovery puzzle for humans.

Planet SFREE
Planet S is a real-time strategy game where your goal is to colonize multiple planets in a solar system to advance your civilization, build a city and supply it to grow your faction.

Space Menace$6.99
Space Menace is a sci-fi space RTS and battle game. You play as a space captain, seeking fortune and glory as you see fit. Leave your mark on the world and determine the fate of the galaxy with your decisions.

Edge Of Galaxy$4.99
Edge of Galaxy is a real-time tactical space sim with RPG-lite elements. As the commander of a mercenary fleet, you must hire and manage your ships, upgrade their capabilities, and rise through the ranks to become a legend among mercs.

3rd Invasion - Zombies vs. Steel$4.99
In this real-time strategy game with a hint of RISK, you'll command sizable armies. Erect a formidable base capable of withstanding enemy assaults. Will you build your army behind impenetrable defenses, primed for a massive assault? Or perhaps you favor small, swift strike teams.

Battlevoid: Sector Siege$9.99
Battlevoid: Sector Siege is an epic straight into action real-time space strategy game, in which the world has been built to deliver a lively battle field; and the action is never more than just seconds away at the start of every game.

Fate of the World$9.99
Fate of the World is a dramatic global strategy game that puts all our futures in your hands. The game features a dramatic set of scenarios based on the latest science covering the next two centuries. You must manage a balancing act of protecting the Earth’s resources and climate versus the needs of an ever-growing world population, who...

Nexus - The Jupiter Incident$9.99
Ambitious megacorporations monopolize the conquest of space and the colonization of the solar system. At the very edge of the solar system, the companies make a discovery that will shift the technological advantage and upset the balance. And so a new conflict is born: "The Jupiter Incident."

It's Not A Moon$0.99
Manage a space station, flying through a procedually generated universe, fight, build and survive in the coldness of space.

Extinction Eclipse$9.99
You are in command of the human fleet, searching for asteroids to mine, extract resources and build bases and more ships to defeat aliens invaders. This simple and short action RTS has a full and exciting campaign, and a skirmish mode that allows you to play a different mission on every match.

星旅:前奏 Wandering Planet: Prelude$3.99
Star Trek: Prelude is a space-based game that builds defense towers on earth to defend against alien invaders called Black Ember.

Door Kickers$19.99
Door Kickers is an innovative realtime strategy game that puts you in charge of a SWAT team and lets you command them during a tactical intervention.