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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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.

Galactic Civilizations® II: Ultimate Edition$9.99
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!

Asha Empire: Exodus$14.99
Embark on an action-packed journey in Asha Empire: Exodus. As Commander Rexis or Kyra, explore 6 sectors of the Sirina moon, collect vital databanks, and face rebels and mutants. Navigate intense battles and strategic challenges to ensure the Empire's survival.

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...

Street Lords$14.99
Procedurally-generated gang warfare meets turn-based strategy and FPS action to deliver an immersive, brutal, endlessly-replayable strategic-shooter - generate your city, customise your gangs, and fight in first person on bloody urban battlefields.

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!

Crying Suns$24.99
Crying Suns is a tactical rogue-lite that puts you in the role of a space fleet commander as you explore a mysteriously fallen empire. In this story rich experience inspired by Dune and Foundation, each successful run will uncover the truth about the Empire... and yourself as well.

Chaos Sector 混沌宙域$9.99
It's a retro-style strategy game, you can choose the Northsky Fleet or the Pirates, lead your commanders, controll many kinds of warships and robots, and fight a war with the enemy's fleet and alien horde on the galactic chessboard!

Byte Lynx$9.99
Byte Lynx is a fast-paced RTS with no units. Build defenses, dismantle your enemy, and steal their buildings in this deeply tactical building combat-based strategy game. Expand your arsenal across a series of diverse levels!

Conflicks - Revolutionary Space Battles$6.99
Spaceships, lasers, and… chickens! What more could you ask for?Conflicks: Revolutionary Space Battles is a creative new take on space-themed videogames that merges the deep, thoughtful gameplay of strategy games with the intuitive accessibility of physics-based games.

House of the Dying Sun$19.99
House of the Dying Sun is a tactical space shooter that puts you in the cockpit of the universe's most terrifying starfighter. Hunt the enemies of the Empire and bring ruin to their people.

Galactic Conquest Battle Infinity$9.99
In the year 3200. The Ethernal ore used as fuel for spaceships was beginning to run out, a galactic war broke out for control of the Ethernal, the galactic emperor Erick V issued a challenge to achieve peace, "the faction that can produce the most Ethernal will control the entire galaxy".

Lazy Galaxy$4.99
Lazy Galaxy is a mix between RTS and idle/clicker game. Lead an evil (albeit lazy) alien race to conquer the universe!

Starfighter Origins Remastered$24.99
Starfighter Origins is an Original 90`s style Indie space combat simulator Based on the CDF Universe. Combining a focus on single player action and a campaign story mode, Starfighter Origins offer fun and diverse gameplay. Designed for keyboard and mouse with full controller support.

Base of WarFREE
Base of War is a next generation 4x RTS game.

Molten Armor$9.99
Molten Armor is an action tower defense game with a non-linear story in sci-fi setting! Command defenses and stop hordes of enemies! Fight on land, sea and in the skies!Decisions taken in the heat of battle will change the course of the war.

群星战纪: 最终防卫线 - STARS ERA: THE FINAL DEFENCE$0.99
We will be the last guardian of the planet, here will be our final line of defense. The Clyde Star Spaceguard will fight to the last moment.

Voidship: The Long Journey$10.99
Design your battleship and fight your way through unforgiving space. This is a tale of a lone spaceship on a centuries-long mission. As the captain, you´ll make strategic decisions, explore unknown sectors, meet allies and enemies, gather resources, technology and crew. To battle stations!

Battle Echoes$6.99
Take command of the mech and become the ultimate strategist. Construct impregnable defense facilities, handpick potent skills, lead your troops, and defy relentless enemy assaults. Will you emerge victorious in this thrilling battle for supremacy?

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.

Relentless ExpanseFREE
Capture and upgrade planets, outsmart your enemies, and conquer the galaxy! Simple yet addicting, you can play alone or outsmart your friends in this 2D top-down space RTS. Completely free, no monetization, just fun!

Project Genesis$29.99
Explore galactic worlds and decide the future of deep space in Project Genesis, a fast-paced, multiplayer first-person shooter that features deep space combat in sci-fi battle craft. Fight as a conscious AI in sci-fi environments and navigate the complex forces competing for stellar domination.

Galaxicus$19.99
An MMO experience that's perfect for solo or team play. Join the adventure and become the ultimate Emperor of the galaxy. Conquer Planets, Manage Economies, Optimize Production, Upgrade Technology while exploring a Randomly-Generated Galaxy, and compete Seasonal PVP.

Stellar Empires$4.99
Indie strategy game where you take control of an Empire, lead it to complete domination by colonizing new planets! The goal of the game is simple - the player has an initial planet and he has to control the armies to capture the enemy planets.

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!

Abda Redeemer: Space alien invasion$9.99
Our brave hero Abda lost his father. After his death, he remained the only one of his kind. Everyone he loved died. After the funeral, he inherited his father's old starship. After fixing the flying saucer he had inherited, Abda got ready to go. Thus began the story of Abda Redeemer.

Grey Skies: A War of the Worlds Story$11.99
Based on the great work of H.G. Wells, explore the English countryside and encounter iconic concepts such as Black Smoke, Red Weed and of course the almighty Fighting Machine and it's Heat Ray!

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)

Seven Kingdoms 2 HD$9.99
Get ready for an exciting real-time strategy game experience like no other with Seven Kingdoms 2! Say goodbye to the monotony of resource gathering and army building, its unique gameplay offers a thrilling blend of city management, trade, industry, espionage, diplomacy, and conquest!

Executive Assault 2$24.99
The RTS/FPS phenomenon has moved into space! Build your base on an asteroid, command fleets of starships for epic battles, pilot fighters, mine and trade resources, assemble robots to defend or assault other stations. Take sole command or share the glory as you fight for control of the quadrant.

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

Defect$5.99
Create the most powerful ship in the galaxy piece by piece, take it into battle and then lose your ship to a traitorous crew in an endless cycle of punishment and revenge.

Planetary Defense: An Orbital Turret Defense System$1.99
2D space shooter and turret defense come together to create the Planetary Defense System this world needs! Shoot down asteroids and aliens and survive the bosses in this arcade like game featuring customizable satellites, projectiles, and upgradable Cannon and Planet Shield systems.

Galaxy in TurmoilFREE
Galaxy in Turmoil's conceptual Early Access game is a FREE multiplayer combined-arms game set in a brand-new universe, created by a team of volunteers. It’s all about endless arms races, corporate espionage, and, most of all, blasting up on the enemy faction and taking their stuff.

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.

Spaceship Commander$9.99
Fight in space or on the planets, or just travel the universe. Visit cities and buildings, mine resources, trade with or speak to individuals on the planets. Explore and discover. Buy a new ship, fit upgrades, and hire a whole army of crew!

A.R.M. PLANETARY PROSPECTORS EP1 Asteroid Resource Mining$4.99
During an expedition, prospectors discover an alien artifact inside an asteroid. Upon contact, they’re teleported to another realm. Captured and enslaved on a mining barge, they mine asteroids in mech suits, all while devising an escape plan to freedom.

绛河之上 Under Supernova$7.99
An instant strategy science fiction simulation survival sandbox game. Players can control individuals, teams, and manage multiple bases. Players can farm, build, excavate, fight, produce, graze, explore, trade, record and pass on knowledge, and can also fly a spaceship to explore the starry sky.

Haegemonia: The Solon Heritage$4.99
A stand-alone expansion pack to Legions of Iron, discover new innovations and even more stunning visuals that launch the Haegemonia experience into light speed.

Heat Signature$14.99
Heat Signature is a game from the developers of Gunpoint where you break into spaceships, make terrible mistakes, and think of clever ways out of them. You take a mission, fly to the target ship, sneak inside, and make clever use of your gadgets to distract, ambush and take out the crew.

Interstellar Pilot 2$0.99
The hit mobile game Interstellar Pilot 2 has come to Steam. Join the TEF forces heading to the Gatopean sector to find a new home for mankind. Play how you like in this open world space-sim developed by Pixelfactor.

Distant Star: Revenant Fleet$9.99
BAFTA award winning fleet-based RTS meets rogue-lite. In Distant Star: Revenant Fleet, build your fleet of up to 5 ships from a choice of 8 classes and traverse a randomly generated galaxy to defeat the Erebus Platform. NOW AVAILABLE ON MAC AND LINUX

Groove that GoobFREE
Abduct the Milky Way’s Oracle Jukebox located at the top floor of a penthouse party as the shapeshifting, absorbent Goob, fully equipped with a ravenous appetite for melodies, mankind, and mosh pits.

Helium RainFREE
Trade your wares and eliminate the competition in a cutthroat world. Buy new ships and stations to mine and haul resources. Explore the vast emptiness of space.

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.

NIGHTSTAR$9.99
This VR title is a unique room-scale third-person shooter. Control the Nightstar by moving your Motion Controller in space, shooting a vast variety of enemies, and avoiding obstacles and enemy fire. Play through 8 levels of non-stop action and immortalize your name on the global leaderboard!

SPACECOM$9.99
SPACECOM – a strategic-to-the-bone, starfleet command game in which deception, smart movement, and choices to battle decide victory or defeat.

Lost Empire 2977$14.99
You begin your journey in an abandoned space station, with no recollection of who you are and with an unknown force that hunts you. To learn the secrets of your past, you must journey through a vast universe, visit strange worlds and space stations, and fight to regain your former glory!

Taur$24.99
Taur is an action-strategy sci-fi game. Control the Prime Cannon and unlock all of its powerful weapons and abilities. Build turrets, droids, aircraft and more as you fight to protect the homeworld of the Tauron droids against a relentless invasion. Will your Taur stand against the Imperion warmachine?

Bow to Blood: Last Captain StandingFREE
Become a Captain! Fly your ship and command your crew as you compete to become Champion in a winner-takes-all reality show. Build relationships and plot betrayals to avoid getting voted off the season and become the last captain standing. Optional VR support.

IstrolidFREE
In Istrolid you design your own unique spaceships from a large number of parts to fit your strategy and play style. With no set units or factions you are free to create a fleet where each ship has its own balanced strengths and weaknesses, from basic fighters and bombers to hulking battleships and speedy destroyers.