Top similar games like Starion Tactics:
Starion Tactics $9.99
After assuming command of one of four human or alien factions vying for galactic dominance, immediately define your game’s scope. Play for minutes to hours across tens to hundreds of planets in single-player skirmish or multiplayer modes—it’s entirely up to you.
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Event Horizon$5.99
Take command of a space fleet and start your galaxy exploration mission.

Infinity: Battlescape$34.99
Infinity: Battlescape is a multiplayer space combat sim supporting hundreds of players on a single server. Join one of the corporate factions and fight for domination of a seamless, true-to-scale procedural star system. Participate in massive space and planetary battles involving hundreds of ships.

Evochron Legacy SE$24.99
Advanced Space Flight, Combat, Trading, and Exploration Simulation. Set in a vast explorable universe, Evochron Legacy offers freeform gameplay with many diverse objectives and paths to choose from.

Space War Machine$0.99
In Space War Machine you warp to a new star for each battle, in a never-ending fight for dominance. Pause and slow time at will, control a vast armada of ships with powers! Explore and Terra-form planets. Warp to your far off opponents. Unleash your Ultimate units for total destruction! And more!!!

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!

Lighark$5.99
Lighark is a top-down action-adventure game where the protagonist pilots a spaceship, traversing through various wondrous planets and engaging in a revenge battle against the three factions of the galaxy. However, all of this is part of a larger conspiracy.

Captain Hannon - The Belanzano$19.99
Charlie had been desperate to get off Morland after being without a ship for over a year. He’d saved every credit he could to pay the deposit on the freighter. Perhaps in hindsight, purchasing the Belanzano wasn't the greatest plan but it was a start!

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!

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.

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.

Project Tarvotan$0.99
Project Tarvotan allows you to explore the depths of the Milky Way and local universe. Use your wit and resources at hand to plan out your path through each sector. Your demise lurks around every decision. Can you survive long enough and restore balance to the universe?

UFO - Unfortunately Fortunate Organisms$0.99
U.F.O is an alien resource management action game where you beam up humans using your spaceship and churn them into resources to upgrade your spaceship. In 30 days, the evil galactic warlord will complete his master weapon. Can you defeat him in time or will he bring extinction to your race?

Between the Stars$29.99
Become the Captain of an interstellar cruiser and journey across the galaxy to save the Republic. During your journey you will have to make important decisions, improve the weaponry of your ship and fight against numerous enemies.

Leap of Champions$7.99
Leap of Champions is a 3D Competitive and Cooperative First Person Shooter with awesome graphic, and a skill based gameplay. His strongpoints are a fluid gameplay with a solid graphic able to work well on outdated machines as well as on the most powerful ones.

Wooden Battles$9.99
Build a wooden fort, place your units, watch the mayhem!

Celestial Command$19.99
Mine asteroids, salvage space debris, design your own small or massive spacecraft using individual functional components, complete missions, and engage in battles against enemies in a vast galaxy with realistic physics based on orbital mechanics or in a classic physics mode.

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 Warrior$1.99
Stellar Warrior is a classic upscrolling spaceshooter for one or two players in a bullet-hell gameplay style! rank up to get to the best score on the Steam leaderboards and unlock all the achievements!

Starcom: Unknown Space$24.99
Starcom: Unknown Space is an action RPG of space exploration and adventure. Build your own starship while discovering an epic story in a universe of strange mysteries, alien factions and uncharted worlds.

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.

Light of Altair$14.99
Light of Altair is a sci-fi colony building game with a deep plot. Grow colonies from landing pod to metropolis, while sending off new spaceships to expand your territory to other worlds. You are not alone in space, 8 factions from different parts of the world are all following their own agendas in the solar system; diplomacy and...

helionaut$2.99
An open-world galaxy adventure game ✨🚀🌠 Explore a procedurally-generated universe filled with diverse micro-planets, asteroid belts and UFOs. 👽

Star Farmer: Warlock of the Universe$4.99
In this relaxing bullet heaven, farming adventure, play as a powerful Warlock who has a side hustle harvesting plants in space.

Space Maze$4.99
Help the crew of the Aurora and their captain, the fearless John Smith, to reach their destination and deliver the cure for humanity, thus saving the human race.

Star Farmer: PrologueFREE
In this bullet heaven, farming adventure, play as a powerful Warlock who has a side hustle harvesting plants in space.

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.

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;)

NaevFREE
Naev is a game about space exploration, trade and combat. Players travel the galaxy and earn money by trading, fighting and performing missions.

Warhammer 40,000: Inquisitor - Martyr$49.99
Enter the Chaos-infested Caligari Sector and purge the unclean with the most powerful agents of the Imperium of Man! W40k: Inquisitor – Martyr is a grim Action-RPG featuring multiple classes of the Inquisition who will carry out the Emperor’s will.

Nano Nebula$14.99
Nano Nebula is a space exploration game for VR. Thousands of years in the future, explore limitless planets as you discover alien life, solve ancient puzzles, and battle hostile creatures.

Where is Earth?$6.99
Where is Earth is a top-down vehicular combat game. Traverse planets, evading threats and obstacles, in search of your crew. Gather resources to assemble upgrades, landing vehicles, space craft, weaponry and support modules to aid you in your fight against an unknown enemy.

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

Across the Galaxy: Stellar Dominator$9.99
In the game,you can assist your allies in occupying and protecting resource-rich strongholds to strengthen their technology and develop more powerful weapons,attack other camps,prevent friendly strongholds from being invaded,assist your camps in developing technology. Strengthen your own technology.

final m00n - Defender of the Cubes$7.99
There is no room for heroes and survival is almost hopeless. Excessively inferior, you will be hunted mercilessly. More than a million years in the future, there is no earth nor humanity - only a few survivors - who desperately protect what is keeping them alive on the m00ns: 3 CUBEs...

Triton Survival$14.99
Triton Survival is an open world survival game about exploration, construction, engineering, and fighting on planets. Embark on this interstellar adventure and conquer the galaxy. Are you ready?

Hyperspacer$2.99
Travel through space in your own spaceship, land on planets and moons, talk to NPCs, perform various tasks, collect scientific data, gather minerals, acquire better equipment, upgrade your ship, advance your skills, and delve into the main storyline.

Space Engineers$19.99
Space Engineers is a sandbox game about engineering, construction, exploration and survival in space and on planets. Players build space ships, space stations, planetary outposts of various sizes and uses, pilot ships and travel through space to explore planets and gather resources to survive.

PHAGEBORN: Online Card GameFREE
An immersive online card game that combines rich and engaging lore, with deep and strategic gameplay. Build powerful decks in synergy with the Avatar of your choice, obliterate your enemies, and decide the fate of the universe!

Super CosmoJet$4.99
Super CosmoJet is a 2D physics-based action space game. Master gravity and your ship's thrust controls to navigate hazardous star systems, on your quest to find your missing father. Each star system is procedurally generated at runtime, so no two play-throughs are the same!

Exodemic$4.99
Destroy aliens, dash between planets, and buy powerful upgrades. Exodemic is a compact roguelike that combines frenetic shoot 'em up gameplay with a procedurally generated overworld filled with vendors, trading hubs, and combat encounters. Race against the clock to save the human race.

Dangerous$19.99
Dangerous is an epic 3D open and living world space combat RPG sandbox with an immersive and riveting story. Are you the feared war criminal who will destroy all life or the savior of the universe? Gather your wingmen and travel the galaxy in search of answers.

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!

The Spatials$9.99
It's the year 5781 -- and you have been chosen to build and lead a space station in a wild corner of the galaxy! Attract visitors and explore hundreds of planets to fund your station.

Endless SkyFREE
Endless Sky is a 2D space trading and combat game inspired by the classic Escape Velocity series. Work your way up from a relatively wimpy shuttle, cargo ship, or fighter, to a highly upgraded and customized flagship or to a massive fleet of warships or freighters.

Star Explorers$4.99
Planets, aliens, resources, upgrades, caves, mapping & documenting star systems ... seek a new home for the human race. An all-inclusive (admittedly janky) procedural space-sim made by solo developer Schmidt Workshops.

Space Battle$1.99
Pilot your ship through dangerous space and defend against relentless imperial attacks in Space Battle, a high-intensity round-based strategy game. Upgrade your ship, mine for essential resources, and survive the onslaught to protect the galaxy!

Space Pirates And Zombies 2$19.99
Design and then improve the ultimate mothership. Explore a persistent living galaxy populated by 200 unique captains that can do everything you can do. Survive the zombie infection and then fight them back. Make allies and start your own faction. Build your empire. Also includes Sandbox Mode.

ASTROKILL$9.99
Focused on combat without compromising realism, ASTROKILL is a modern space shooter drawing inspiration from old-school games like TIE Fighter and Freespace 2. Players pilot fighters, gunships, interceptors, and medics (in 1st or 3rd person) from warring factions in ballistic dogfights.

Gray Zone$19.99
Gray Zone is best described as Men of War meets Commandos in a futuristic coat. It's an odyssey of a slave who turned against his masters. Use stealth or direct combat in a squad-based encounters. Expect memorable characters, fun dialogues and lots of action!

Beat the Humans$4.99
Beat the Humans is the turn-based tactical strategy game. Here you lead an army of aliens against invaders from the human race. Collect your squad, protect planets, strengthen your army with equipment and look for allies if you want to survive and win.

Through the Galaxy$6.99
Immerse yourself in an unknown galaxy. Collect resources, upgrade your spaceship and experience an exciting mix of action and adventure with intense battles in a calm atmosphere. Discover new worlds and master challenges on your epic journey through space.