60+ similar titles based on shared tags and player behavior. Themes include Space, Simulation, Space Sim, Sci-fi.
A galaxy with its own economy, its own wars, and no reason to wait for you. Trade, mine, fight, and salvage a living - alone on the rim, or at the head of an empire the great powers can't ignore. A single-player space sandbox that never stops moving.
Capital Command
Take the helm of a state-of-the-art warship as you fight epic space battles in a sandbox campaign. Upgrade and customize your ship, master the art of maneuvering, and use a blend of tactical prowess and heavy firepower to overcome deadly threats.
X4: Foundations
Your journey to building a vast space empire begins behind the controls of a single ship. Explore, trade, fight, and build as you rise to command fleets, stations, and entire economies in a living, fully simulated universe that reacts to every decision.
Take the helm of a state-of-the-art warship as you fight epic space battles in a sandbox campaign. Upgrade and customize your ship, master the art of maneuvering, and use a blend of tactical prowess and heavy firepower to overcome deadly threats.
Why similar: Space Sim 17.7%, 4X 14.5% ★, Space 10.7%, Flight 9.2%, Economy 7.9%
Your journey to building a vast space empire begins behind the controls of a single ship. Explore, trade, fight, and build as you rise to command fleets, stations, and entire economies in a living, fully simulated universe that reacts to every decision.
Why similar: 4X 17.6% ★, Space Sim 16.4%, Space 11.1%, Flight 8.9%, Moddable 8% ★
X3: Reunion continues the epic space saga, blending deep space trading and intense real-time combat. Explore a vast universe, establish your empire, and shape the new frontier. With enhanced graphics and intricate economies, it's a journey of strategy, simulation, and interstellar intrigue.
Why similar: Space Sim 23.5%, Space 23.1%, Economy 9.5%, Sandbox 7.8%, Simulation 7.5%
Single-player space strategy about the last ship of a vanished civilization: built to copy itself, no longer able to. Turn dead systems into mines, refineries, and shipyards. Design fleets, command the fights, lose ships, never the factory. Find out what silenced the galaxy.
Why similar: Space Sim 24.7%, RTS 16.8%, Space 16.8%, Strategy 8.3%, Open World 7.8%
It is the year 2938. The long wished-for encounter of the X Universe and the Earth holds both joy and sorrow for the people. Despite flourishing trade, the clash of the diverse races, cultures and life forms creates new tensions, mistrust and open conflict that need to be overcome!
Why similar: Space 26.8%, Space Sim 19.4%, Sandbox 8.6%, Simulation 8.2%, Open World 7.8%
Strategy from the front lines! Starpoint Gemini Warlords combines 3rd person capital spaceship combat with 4X strategy and RPG gameplay elements. Build mighty war fleets and send them into battle or lead them into combat yourself. Become the Warlord and conquer the Gemini system!
Why similar: 4X 17.6% ★, Space Sim 17.3%, Space 12.9%, Open World 8.5%, Flight 7.9%
X²: The Threat is of a new generation of space simulator games, you play the role of Julian Gardna who continues the story set by X: Beyond The Frontier. The updated graphics engine gives the universe a fresher feel with newly designed ships and stations adding to the complexity of the universe.
Why similar: Space 24.1%, Space Sim 19.6%, Economy 9.4%, Open World 8.7%, Simulation 7.8%
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.
Why similar: Space Sim 18.9%, 4X 18.2% ★, Space 9.7%, RTS 9.1%, Open World 8.2%
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.
Why similar: 4X 20.8% ★, Space Sim 16.2%, Space 15.1%, Simulation 11.6%, Strategy 11%
The Human Race had advanced to the point where we could travel among the stars, we developed giant automated machines to help us colonise other worlds, but there was a fault in their programming and they turned and attacked. Forcing us to lay a trap to protect Earth and exiling the Human race to stay on Earth once again.
Why similar: Space 22.2%, Space Sim 21.2%, Simulation 11.7%, Economy 8.6%, Sci-fi 8.2%
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.
Why similar: 4X 18.8% ★, Space Sim 16.9%, Diplomacy 13.8% ★, RTS 10.8%, Space 10.1%
Star Trek: Infinite is a grand strategy experience that lets you play your own Star Trek story as the leader of one of four major factions in the galaxy. Follow the specially crafted story or blaze your own trail in the first Star Trek grand strategy game.
Why similar: 4X 22.9% ★, Space Sim 14.3%, Diplomacy 12.6% ★, Space 11.9%, RTS 10.7%
X-Tension is the eagerly awaited expansion pack to X: Beyond the Frontier. The expansion is not limited by a linear plot line but makes use of new ways to expand your empire. You can now take part in missions that are offered to you throughout the game.
Why similar: Space Sim 27.6%, Space 21.5%, Simulation 14.5%, Economy 9.5%, Strategy 9.2%
Existence is a strategy game on a massive scale. Lead your expanding empire, explore the galaxy, and master simultaneous space and planetary battles. Engage in solo play or team up with friends for intense PvP and co-op action.
Why similar: 4X 18.6% ★, Diplomacy 17.2% ★, Space Sim 14.3%, Space 11.1%, RTS 10.1%
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.
Why similar: Space Sim 26.4%, Space 23.9%, Simulation 8.6%, Sci-fi 7%, Strategy 7%
The accessible space-sim. Fly, fight, and trade through a galaxy where the prices and borders came from 700,000 days of astropolitical generation that keep ticking.
Why similar: Space Sim 32.6%, Space 17.1%, Open World 12.1%, Sci-fi 7.8%, Simulation 7.8%
Fight till you can't then fight some more! A space combat simulator with survival crafting elements.
Why similar: Space Sim 25%, RTS 13.2%, Open World 10.9%, Sandbox 8.9%, Space 7.9%
A real-time sci-fi 4X strategy game where you explore procedurally generated star systems, expand your empire, manage resources, build fleets, and wage war against multiple AI factions in a dynamic and evolving galaxy.
Why similar: 4X 28.3% ★, Space Sim 22.3%, RTS 15.2%, Strategy 9.8%, Simulation 9.7%
In the distant future, the X universe faces a period of profound and irrevocable change. While the universe stumbles towards an uncertain future, countless adventures await as new enemies rise in search of power.
Why similar: Space 31.1%, Space Sim 20.9%, Simulation 13.6%, Sci-fi 10.7%, Sandbox 7.3%
Ascendance is a real-time space strategy game that sees you lead your civilisation into a vast and mysterious galaxy. Experience an immersive journey with detailed civilisations, deeply-simulated economies, internal politics, nuanced diplomacy, and intense space battles.
Why similar: 4X 23.8% ★, RTS 13.1%, Space 11.8%, Diplomacy 9.1% ★, Open World 8.1%
Become the ruler of the entire Galaxy: colonize planets, extract resources, build defenses and fight in planetary battles!
Why similar: 4X 24.4% ★, Space Sim 16.6%, RTS 13.4%, Space 12.3%, Flight 11.7%
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.
Why similar: 4X 20.9% ★, Space Sim 19.8%, RTS 12.2%, Flight 9.2%, Space 8.5%
A real-time open-world space exploration game. Your ship and crew lost in a sector in chaos. Befriend the local residents. Explore, scavenge, research, craft, upgrade. Take command of your ship and crew, survive, solve the mystery of the dark sectors and get your crew home.
Why similar: Space Sim 20.8%, Space 17.3%, Open World 12.7%, Sci-fi 10%, Simulation 7.7%
Darkstar One offers a fantastic amount of freedom of choice. The story-based missions gradually lead you deeper into the galaxy to new races, new technologies and ever stronger opponents. Explore a vast array of solar systems in search of hidden artifacts of ancient races, essential objects for upgrading your ship--the Darkstar One.
Why similar: Space Sim 33.1%, Space 28.6%, Open World 11.1%, Sci-fi 11%, Simulation 6.3%
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.
Why similar: Space Sim 30.4%, Space 13.7%, Simulation 13.2%, Sandbox 12.4%, Strategy 11.4%
The life of an independent mercenary is rarely without excitement. Your spacecraft awaits and your adventure begins in the Sapphire star system.
Why similar: Space 27.8%, Space Sim 25.6%, Simulation 11.8%, Open World 10.7%, Sandbox 8.2%
A first-person space sim set in the real solar system at true scale, with every planet where it actually is today. Dock at the ISS, take contracts, survey planets, mine moons, haul cargo and fight pirates across genuine interplanetary distances as you rise from cadet to major.
Why similar: Space Sim 37.6%, Space 19.6%, Open World 13.8%, Simulation 9.3%, Sci-fi 8.2%
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.
Why similar: Space 34.7%, Space Sim 17.2%, Open World 14.2%, Sci-fi 8.6%, Simulation 5.9%
Start with your own character and a small ship in a world that lives independently of the player. Develop your skills, explore space, trade, build industry, and grow your fleet to survive real-time battles against hostile fleets—and something far more terrifying lurking in the darkness.
Why similar: Space Sim 24.3%, 4X 24.1% ★, Space 11.5%, Sandbox 7.8%, Economy 5.6%
Construct your Taskforce and lead your forces to domination in the ultimate Fleet Warfare RTS!
Why similar: Space 26.1%, RTS 20%, 4X 15.1% ★, Strategy 13.3%, Simulation 11.5%
Lead humanity's first deep survey beyond Sol in a research-first space strategy game. Explore star systems, investigate worlds, deploy probes, and turn scientific discoveries into strategic power.
Why similar: 4X 31.3% ★, Space Sim 23.4%, Space 15.8%, Strategy 9.9%, Simulation 7.9%
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.
Why similar: 4X 38.4% ★, Space 22%, RTS 18.8%, Strategy 10.9%, Sci-fi 10%
Customize your ship to fit your needs in the deep space. Explore the Milky Way in this ultimate open world sandbox.
Why similar: 4X 24% ★, Space Sim 21.4%, Space 12.5%, Flight 10.1%, Open World 9%
Play campaign stories within the Galactic Ruler universe. Invade the galaxy to eliminate those who stand in your way or rally alien races to defend against the invaders. Fight battles at both planet and space across a procedurally generated galaxy. Use new unit control systems to manage your forces.
Why similar: 4X 21.8% ★, Space 14.4%, Diplomacy 12.9% ★, Space Sim 11.7%, Moddable 9.8% ★
A 2D space trading game with a real economy. NPC ships haul cargo between 78 stations and prices move whether you're there or not. Good routes die as other traders catch on, so you keep hunting new ones. No quest markers, no "best trade" arrows. Just you, a map, and the prices.
Why similar: Space Sim 31.7%, Simulation 13%, Sandbox 12.5%, Economy 9.4%, Space 9.1%
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.
Why similar: 4X 26.7% ★, Space Sim 23.5%, RTS 15.6%, Space 6.9%, Base Building 6.8%
A 2D space agency simulator where every object follows the same orbital physics. Land on moons, build colonies, deploy satellites, and reshape entire planetary systems. Deorbit a moon if you want.
Why similar: Space Sim 27.9%, Space 14.8%, Flight 12.2%, Sandbox 9.6%, Economy 8.7%
Astrox Imperium is a relaxing space game where you fly around a generated universe. Mining, Fighting, Building, Exploring, and Surviving. What makes this game unique? You have complete control of how it plays. A robust sandbox and lots of MOD tools. Make it your game, and play it your own way.
Why similar: Space 29.6%, Space Sim 29.1%, Open World 11.7%, Sandbox 10.4%, Simulation 9.9%
See the galaxy through the eyes of a trader. Hundreds of years after humanity took to the stars, you're free to buy, fight, explore, and build your way to power. Shape economies, form alliances, and influence the systems that control trade, tech, and politics.
Why similar: Space Sim 26.6%, Space 16.8%, Flight 11.9%, Economy 11.7%, 4X 9.2% ★
Rule a living interstellar empire in this real-time 4X grand strategy. Make decisions that shape civilian lives, manage fragile supply lines, lead military conquests, and decide whether your civilization thrives or collapses under its own expansion.
Why similar: 4X 23.9% ★, Space Sim 19.6%, RTS 12.7%, Diplomacy 11.2% ★, Space 11.2%
Explore a galaxy of 300 systems as you control your fleet in a top-down 3D style, navigating through Star-lanes, Warp gates, and Black holes. Customize and upgrade your fleet, complete missions, trade, hire your crew, wage war and determine the fate of the galaxy in this grand sim saga.
Why similar: Space Sim 34.5%, RTS 12.2%, Space 12.1%, Sci-fi 9.4%, Strategy 7%
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.
Why similar: 4X 44.1% ★, Space 21.2%, RTS 14.8%, Strategy 11.9%, Sci-fi 7.7%
Lead your civilization in a galaxy brimming with life and intrigue. Seamlessly explore and expand across uncharted worlds, from their surfaces to the stars. Forge your destiny in this sci-fi 4X offering a unique blend of grand strategy, planetary city-building, and RTS combat.
Why similar: 4X 25.9% ★, RTS 15.6%, Space Sim 12.8%, Space 11.6%, Diplomacy 9.5% ★
Station Commander is an economy strategy game that has you take control of a futuristic space station. Your goal is to build ships, gather resources, and trade with neighboring planets to upgrade your station and ships. Upgrading your station gives you access to better ships and ship abilities.
Why similar: 4X 21.4% ★, Space Sim 19.9%, Space 11%, RTS 10%, Economy 9.4%
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.
Why similar: Space 30.6%, Space Sim 19.6%, Simulation 12.5%, Sandbox 12.2%, Strategy 8.1%
Take control of your own starship and blaze your trail in an ever-changing galaxy. Master the arts of combat, mining and trade or venture out into the unknown across a 1:1 scale universe.
Why similar: Space Sim 37%, Space 20.9%, Open World 13.9%, Sci-fi 7.8%, Exploration 6%
A single-developer passion project. A seamless full scale solar system. Thrilling action. Be part of an incredible journey as a Universe is built from the ground up!
Why similar: Space 30%, Space Sim 17.8%, Open World 17.6%, Sandbox 10.7%, Exploration 9.9%
Take part in a space program. Design spacecrafts and send them off to explore the vast expanses of space. Experience the real scale of the Solar system and the size of its celestial bodies.
Why similar: Space Sim 22.6%, Space 15.6%, Flight 13.1%, Sandbox 9.3%, Open World 9.1%
You are a Scraponaut, create your own spaceplane with unique parts each affecting the way your plane behaves. Collect scrap while exploring procedurally generated islands, unlock and discover unique new parts to upgrade your spaceplane.
Why similar: Space Sim 30.2%, Space 16.6%, Flight 15.2%, Sandbox 10.7%, Simulation 8.2%
Rebel Galaxy is a swashbuckling space adventure, with action-packed combat, exploration, discovery, trade, and “negotiation” with the outlandish denizens at the edge of the known universe.
Why similar: Space 33.9%, Space Sim 22.3%, Open World 14.7%, Sci-fi 10.2%, Sandbox 4.8%
Start with a small mining ship and build an interplanetary space enterprise. Mine resources, refine goods, automate trade routes, expand your fleet, and take direct control of your freighter as you explore the Solar System.
Why similar: 4X 22.6% ★, Space Sim 21.6%, Space 17%, Economy 12.7%, Exploration 8.2%
Design custom rockets and master 2D orbital mechanics to navigate a fully simulated solar system. Establish outposts, process local resources to launch interplanetary missions, and manage critical supply lines to keep your colony's workforce alive.
Why similar: Space Sim 27.9%, Flight 14%, Space 11.6%, Sandbox 10.7%, Simulation 7.8%
Cosmonautica is a fresh take on space trading in a procedurally generated universe, paired with quirky humor for your intergalactic enjoyment.
Why similar: Space Sim 20.5%, Diplomacy 14.7% ★, Space 14.4%, Economy 11%, Open World 7.4%
Build rockets and fly them around the Solar System in this realistic aerospace sandbox. Attempt landings, build space stations, drive rovers, perform spacewalks, explore alien worlds, and get your crew home safe.
Why similar: Space Sim 31%, Flight 13.7%, Space 13.1%, Sandbox 10.6%, Simulation 8.1%
Explore a galaxy full of wonders in this sci-fi grand strategy game from Paradox Development Studios. Interact with diverse alien races, discover strange new worlds with unexpected events and expand the reach of your empire. Each new adventure holds almost limitless possibilities.
Why similar: 4X 28% ★, Space 19.8%, Diplomacy 8.9% ★, Sandbox 8.9%, Sci-fi 8.4%
Voidless is a sci-fi space survival sandbox set in the near future within a realistic scale solar system. In first or third person, players can explore planets and asteroids, collect resources, and craft items. As well as building bases and ships, all with physics based flight and combat.
Why similar: Space Sim 27.3%, Space 15.9%, Flight 10.2%, Sandbox 9.9%, Economy 8.9%
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.
Why similar: Space Sim 43.2%, Space 24.8%, Simulation 10.9%, Strategy 8.7%, Economy 6.3%
Welcome to this innovative sci-fi open-world! As the last survivor of humanity, build a home on a wild alien planet. Reignite civilization—from primal survival to advanced energy systems. Use the Planetary Control Module to reshape the world, uncover human secrets, and journey back to Earth.
Why similar: Space Sim 24%, Space 18.9%, Sandbox 14.1%, Open World 13.4%, Base Building 6.8%
A simulation sci-fi game where players take on the role of the project manager of a space elevator project. They will progressively achieve project phase goals and ultimately accomplish the ultimate goal of constructing a Mars colonization spacecraft.
Why similar: Space Sim 35.7%, Simulation 16%, Space 14.4%, Strategy 13.4%, Exploration 7.6%
Fight, salvage and trade across the moons and rings of a solar system nobody can leave. Take what you can carry. Read what the dead left behind. Everything you do is remembered.
Why similar: Space Sim 35.1%, Space 17.9%, Simulation 14.4%, Open World 10.1%, Sci-fi 8%
