Top similar games like Empyrean Frontier:
Empyrean Frontier $11.99
Empyrean Frontier is an epic real time strategy game that mixes classic RTS gameplay with a multi-stage campaign in which the player commands a fleet of ships through a galactic map. Boss battles, base building, planet destroying superweapons, and tactical skirmishes create a unique blend of genres.
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ZaciSa: Defense of the Crayon Dimension!$4.99
2D Tower Defense game set in a colorful world of Crayons. Over 20 different Maps with plenty of fun Weapons at your ready to defend the Crayon Empire. Can you survive the onslaught?

Aries$14.99
Space strategy gaming reimagined. Dive into fast-paced real-time planetary battles against the backdrop of a turn-based campaign that sees you build your empire in the stars. With hundreds of troops and ships at your command, can you forge an empire that lasts?

AIRA VR$9.99
You believed tower defense is only about building towers? That's not quite right – because AIRA VR is not like other tower defense games in virtual reality. Once the battle starts you find yourself in the midst of the fight!

Space Crew: Legendary Edition$24.99
Time for your toughest mission yet! Recruit and train your crew to tackle the growing threat from alien and android armies as you defend Earth to become a Galactic Legend in Space Crew: Legendary Edition. All new content free to existing owners of Space Crew!

Wander VyrosaFREE
A tower-defense game with roguelite elements on fully explorable mini planets! Travel the galaxy of Vyrosa, land on planets, and defend your drilling equipment while mining fuel to continue your journey throughout the galaxy!

Rogue Station Defense$7.99
A rogue-like sci-fi Tower Defense strategy game with infinite replayability!

Dungeon D14$1.99
You control a small colony in the underground of an unknown planet. Mine resources, build a base, explore the world and technology. Supply your colonists with oxygen, food and energy so that they can carry out their tasks.

Infinity Wings - Scout & Grunt$1.99
Infinity Wings - Scout & Grunt Take control of your chosen fighter (either Scout or Grunt) in this side scrolling shooter.

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.

Omega Warp$14.99
Omega Warp is a sci-fi themed action-adventure, which takes place aboard an interstellar freighter. Explore, upgrade your skills and equipment, and uncover the mysteries surrounding the freighter's loss of communication with the base of operations on Earth.

Red Sea$4.99
Red Sea is an intense Real-time Tactics game where you control a small team of vigilantes in increasingly challenging battles. It features a Scriptable Tactics system that mixes auto-battling with manual overrides and has a ton of powerful ability interactions to discover.

Thukothea Defender$4.99
A strategic tower-defense where you control powerfull drones. Unlock new tower and use specific technologies to defend your base on Thukothea!

Galactic Garrison$6.99
Galactic Garrison is a sci-fi, turn-based tower defense game where you defend your base from relentless alien waves on Mars. Deploy soldiers, build barricades, and upgrade defenses to withstand attacks. Earn powerful reward cards to gain strategic advantages and outmaneuver your enemies.

EinherjarFREE
Einherjar is a combination RTS and turn-based game, with roguelike elements. Defend against waves of enemies as your territory expands, and the opposition becomes tougher, while building up your base and defending and upgrading your resources.

Iron Marines Invasion$14.99
Prepare to take off, soldier! The galaxy needs your strategy! Prove your RTS expertise, explore an entire galaxy and defend it from a threatening invasion.

Halcyon 6: Starbase Commander$14.99
Halcyon 6: Starbase Commander is a retro space strategy RPG with base building, deep tactical combat, crew management and emergent storytelling.

Factory Rally Madness$15.99
Factory Rally Madness mixes real time action racing with puzzles and reasoning, inspired by robot programming. Robots race through factories trying to reach objectives points, having their movements programmed while racing. Chaotic, crazy, casual and also not so casual gaming.

Astero Inc.$11.99
Astero Inc. is a space mining simulation game where players will travel to a dystopian future in a tense competition for asteroid mining rights throughout the universe. Take on the role of a small business owner in an all-out fight against the mighty Black Corp.

SPACE BATTLE: Humanity$1.99
The day has come… Humanity has been attacked by an alien race.You have space bases at your disposal. Use them to launch battleships and take over the alien mothership.

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!

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!

Fastraq$1.99
Fastraq is a high-speed anti-gravity racing game. Drive on roller coaster like tracks, overtake your opponents and engage in combat. Experience tight turns, 360 degree loops and intense combat.

Of Ships & Scoundrels$14.99
Of Ships & Scoundrels takes you on a journey to unknown lands that wait to be explored and conquered. As the commander of your fleet, you have to steer your battleships through a beautiful scenery of little islands, fight against enemies, friends - and forge dubious alliances.

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.

Rebellion Corporation$7.99
On planets occupied by robots, mine resources and escape while fending off their attacks! The Ark's survival is entirely in your hands. Many elite crews with abilities will assist you in your mission. The various turret modules are always doing their best to defend your base without your attention.

The WallFREE
[Servers Temporarily Shut Down!] Build. Gather. Breach. The Wall is a never-before seen mix of genres, where dynamic maps, slick combat, base building, and economy management all come together.

End War RTS$2.99
Inspired by modern science fiction! A modern real-time war game, the screen is in the style of realism, the fast-paced attack effect is easy to fatigue, easy to use and simple to operate, mainly in the traditional style

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.

TowerMancer$7.99
TowerMancer, a challenging strategy tower building game. Gather resources, build rooms, face menacing threats and meet The Lich family!

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.

Block Strategy$10.99
Block Strategy is an RTS Base Defence roguelite with a fully destructible world. Build your base and find fuel to power your reactor before you're overrun by an onslaught of enemy robots.

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!

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...

Colony Defense - Tower Defense$6.98
Atmospheric unique minimalist tower base defense game. Highly addictive.

Victory At Sea Pacific$39.99
Victory at Sea Pacific is the exciting game of naval RTS combat set during World War II. Bringing an epic approach to real time strategy war gaming, search and destroy enemy fleets across an open world sandbox in a desperate attempt to change the course of history.

Adapt or Perish$9.99
This is more than just an odd looking strategy game, it is a strategy platform. Genetically engineer amorphic creatures & buildings, in real time, in an endlessly open world that adapts to your playstyle. Share, and even battle your designs. How much will they be worth?

Iron Marines$14.99
Real-time strategy battles in amazing sci-fi worlds! Command brave soldiers, mighty mechas and powerful aliens to face the greatest challenges in hostile alien worlds. The galaxy needs you!

Sky Cannoneer$14.99
Build up your fortifications, place your cannons, and fire at the enemy forces! Improve your Battle Haven with powerful upgrades while playing through a story campaign comprised of dozens of scenarios with unique mission types and multiple boss fights! Take to the sky and win!

Armoured Onslaught$17.99
Armoured Onslaught is a fast paced Top-Down Shooter and Tower Defence hybrid. You will need to make use of both strategy and skill as you fight your way through near endless hordes of deadly foes.

Anomaly 2$14.99
Anomaly 2 is a sequel to the critically acclaimed Anomaly Warzone Earth. Maintaining the core elements of the original, Anomaly 2 adds plenty of new features: unit morphing, over million tactical combinations, post-apo world and tower defense vs tower offense multiplayer mode.

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.

Orbit: Satellite Defense$3.99
Protect your planet from alien invaders in this unique RTS experience. Freely reposition Satellites and manually dictate their targets. Manage your Energy reserves to send Satellites into orbit or unleash Planetary Powers.

Solar Struggle$5.99
Solar Struggle is an arcade space shooter with a thrilling story and a challenging skirmish mode.

Satellite Reign$29.99
Satellite Reign is a real-time, class-based strategy game, set in an open-world cyberpunk city. You command a group of 4 agents through rain-soaked, neon-lit streets, where the law is the will of mega-corporations.

Alpha Particle$9.99
Alpha Particle is sci-fi action game about a defenceless particle that must overcome it's obstacles creatively

The Last Starship$24.99
The Last Starship is a 2D space construction game where you design and upgrade your starship. Choose your path: pirate hunter, miner, engineer, spacebus driver, and more, whilst exploring vibrant star systems. Enjoy a growing sandbox world, with regular free updates. Your cosmic adventure awaits!

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.

Heroes Of Maidan 2$1.99
Generalisimus Zhmyshenko Valery Albertovich led a crusade on the Donbass

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.

Super-Spatial$12.99
Explore, build, and master the art of automation. Build your base, discover colorful new worlds, and develop new technologies as you tame the far reaches of space and search for a way to return to Earth.

Iron Age$4.99
Conquer in Iron Age, a real-time strategy game. Build your base, train infantry, and devise cunning tactics to obliterate enemy strongholds. Achieve glory through smart maneuvers, alliances, and relentless battles.