Top similar games like Heathen Engineering's Terran:
Heathen Engineering's Terran $8.99
Galactic Strategy | Tactics | Action! Found an empire and expand across the stars, command massive fleets in interstellar conflicts and pilot powerful warships as you battle for victory in Heathen Engineering’s Terran.
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Star Ruler 2$19.99
Massive scale 4X-RTS set in space. Control hundreds of planets, manipulate galactic politics, research numerous advanced technologies, and command thousands of units and hundreds of planets in your quest for galactic dominance.

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.

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.

StarDrive$29.99
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.

Unending Galaxy$4.99
Unending Galaxy is a unique space-sim in which you can fill any role from pirate or trader to the leader of a large galactic empire.

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!

Space Tyrant$19.99
Terrorize the galaxy for fun and profit! Space Tyrant is a surprisingly deep beer & pretzels strategy game set in a darkly humorous future. Build a mighty space force, disintegrate peaceful aliens, and rule irresponsibly on your relentless march to total domination.

StarDrive 2$29.99
StarDrive 2 is an exciting and evolutionary step forward for the StarDrive franchise. In this eagerly anticipated sequel, the core mechanics have evolved to incorporate a turn-based strategic layer, featuring spectacular realtime battles.

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.

Lords of the Black Sun$24.99
Take command of one race to join the struggle for supremacy in the galaxy. As the leader of your empire you are tasked with exploring the stars, colonizing new worlds, managing your empire and conquering whoever dares to oppose you.

Star Traders: 4X Empires$9.99
Take command of humanity’s last survivors and rebuild an empire in the stars. In this immersive turn-based strategy game, you will have to fight to protect your people, control rival factions, and unlock lost technology.

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!

Stars in Shadow$24.99
Stars in Shadow is a turn-based 4X strategy game and a vivid tribute to the genre classics. Compete with alien factions to explore and colonize nearby starsystems, build fleets to defend against rivals, negotiate or conquer them. Win by unifying the galaxy, through diplomacy or force.

Galactic Inheritors$19.99
Colonise solar systems and watch them grow. Explore the galaxy to find its strategic choke points. Build up your empire and your fleet and then use the power of the media to prepare your people for the inevitable war. At the same time watch your opponents, keep on an eye on their own media and watch for threats and opportunities.

Stardust Exile$19.99
Stardust Exile is an RTS set in the Milky Way galaxy, containing currently known stars and exoplanets with their real characteristics. The remaining star systems are procedurally generated. It has both online mode and single-player skirmish mode. The online server is persistent and single-shard.

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.

Space One - Electron$0.99
Adventure through a limitless procedural galaxy, as you play the role of a colonist in this epic colony simulator.

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.

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.

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.

Final Theory$14.99
Final Theory is a 4X-lite turn-based strategy game where you command fleets of battleships engaged in a galactic civil war. It presents an exciting experience for both veteran players and those new to the genre. It features innovative combat mechanics but also hearkens back to some of the classics.

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.

Stellar Monarch$14.99
Asymmetric space empire builder where you feel like the Emperor, not a logistics officer. No micromanagement, grand scale, fast paced, audiences, assassins, imperial court, disloyal admirals.

Star Ruler$7.99
Take command of a vast interstellar empire and safeguard your species from total extinction in a procedurally generated 3D galaxy (with the option to flatten it) from 1 System to 10,000+! Prove your species' ingenuity through a deep and intricate combat system where anything (from individual components on ships to the stars themselves)...

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.

Tales of a Spymaster$11.99
Break from the traditional role of ruler and take up a new set of tools within Tales of a Spymaster, a turn-based strategy set in a fictional world, filled with threats and opportunities. Choose your kingdom and guide your ruler to victory, in whatever manner you deem fit.

Dawn of Andromeda$29.99
Dawn of Andromeda is a pausable, real-time 4X space strategy game providing an accessible, fun and immersive experience, introducing fresh ideas to the genre. Build your empire, colonize new planets, interact with other factions and characters, research technologies and build great fleets.

Armada 2526 Gold Edition$19.99
Conquer the Galaxy In This ‘4x’ Strategy Game. Lead one of 18 different alien races to become a mighty pan-galactic empire. Manage your colonies, deploy your fleets and conduct research. Plot your strategy and turn your planets into mighty bastions.

Elemental Empire$9.99
An economic 4x strategy in a space filled with magic and procedurally generated planets. Build your own empire and become the sole ruler of a new world.

Gods and IdolsFREE
Take the role of a newly ascended deity in Gods and Idols. Carve your place among the stars in an open, dynamic, and massive MMORTS universe. Command the powers of the cosmos, form alliances, and use your worshipers as instruments to further your goals.

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.

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?

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.

Galactic Dominion$4.99
Galactic Dominion is a fast paced 4x space strategy game. Explore the stars, perform research, manage your colonies, build a fleet, defend your systems, and conquer the galaxy. Play through an epic story driven campaign or alternatively customize your games for countless re-playability!

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.

Pax Nova$24.99
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.

Rank: Warmaster$24.99
Stranded on Mars with next to nothing, build a city, assemble a fleet, and expand your empire to survive a hostile solar system in this new take that combines elements of space combat and RTS inspired by the classics.

Chaos Galaxy$14.99
A pixel-art turn-based Galaxy total war game. You can select 14 factions, 61 heroes, hundreds of warships and mecha, and command multiple fleets to carry out grand strategic operations on the map of the galaxy.

Gewevo : Interstellar$11.99
Gewevo : Interstallar is a space strategy game derived from the tabletop RPG universe Gewevo. It offers an approach a little closer to a wargame with regard to the empire management aspect. Made with passion by a one-man team;)

Astra Exodus$29.99
Astra Exodus is a single player turn based Sci-fi 4X strategy game inspired by the classics, with a multiple choice narrative driven epic campaign, top down real time tactical battles and an extensive semi-randomized research grid.

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

Galactic Civilizations® I: Ultimate Edition$4.99
Galactic Civilizations is a space based strategy game in which you are in control of humanity's destiny.

Apollo4x$4.99
Apollo4x is a casual-to-difficult space trading tycoon game, where success is measured in earnings from how efficient your trade routes are in transporting supplies to demands on your planets. Combat is card based, and uses a unique system never before seen.

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.

Drox Operative 2$19.99
Drox Operative 2 is a starship action RPG with warring alien races, fierce space battles, a dynamic, evolving galaxy, and co-op multiplayer for Windows and Linux.

Void Eclipse$29.99
Void Eclipse is turn-based strategy in an immersive sci-fi world, blending card battle tactics with 4X grand strategy. Explore the stars, Evolve your army and Fight an alien threat. Help characters or harm them - will you be Feared, Admired, or Respected?

Predestination$29.99
Predestination is a turn-based sci-fi 4X game set in the distant past of our own galaxy. Ships from countless races are flung back in time by a powerful hostile race known as the Revenants, and must now work to rebuild their empires and somehow stop the Revenants in the past.

Yargis - Space Melee$2.99
Yargis is a fast paced, top down spaceship shooter. Customize your ship to join a battle online or offline. Yargis is focused on team based, close combat action. The game has a variety of battle and co-op game modes and a powerful editor make Yargis a great game!

Under Domain - Alien Invasion Simulator$5.99
Under Domain - Alien Invasion Simulator will surprise you with a Sci-fi turn-based game completely different from others. How about turning yourself into an Alien and planning an invasion to Planet Earth? You can secretly influence human history and build war machines to exterminate human beings.

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.

Drox Operative$19.99
Drox Operative is a starship action RPG with warring alien races, fierce space battles, a dynamic, evolving galaxy, and co-op multiplayer for Windows and Mac.Eons ago the Drox ruled the galaxy through their mighty Operatives. These elite starship captains were trained to accomplish the impossible at whatever cost necessary.