60+ similar titles based on shared tags and player behavior. Themes include Simulation, Space Sim, Space, Singleplayer.
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.
Deep Space Remnant
This space survival sim lets you build a space station, construct ships to gather resources for expansion, and upgrade tech for stronger shields to withstand cosmic radiation, all while surviving in a radioactive environment.
The Cosmogenesis Project: Corruption
Pilot your ship across a procedurally generated star map as corruption spreads inward. Each sector holds a stabiliser; protect it from raiders and pump energy into its shields. Jump between nodes, prioritise threats, and manage energy. Hold the line until time runs out, or be consumed by corruption.
This space survival sim lets you build a space station, construct ships to gather resources for expansion, and upgrade tech for stronger shields to withstand cosmic radiation, all while surviving in a radioactive environment.
Why similar: Space Sim 34% ★, Strategy 23.2%, Simulation 22.1%, Space 8.6%, Base Building 7.1%
Pilot your ship across a procedurally generated star map as corruption spreads inward. Each sector holds a stabiliser; protect it from raiders and pump energy into its shields. Jump between nodes, prioritise threats, and manage energy. Hold the line until time runs out, or be consumed by corruption.
Why similar: Space Sim 42.3% ★, Strategy 20.7%, Space 17.3%, Simulation 9.4%, 3D 5%
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 47.3% ★, Simulation 16.5%, Space 16.3%, Strategy 13.9%, Exploration 6.1%
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 34.1% ★, Simulation 25.4%, Strategy 16.6%, Space 15.9%, Sci-fi 7.2%
Caught in the middle of a violent conflict on the fringe of the galaxy — your ability to survive will depend on your piloting skills and combat savvy as a mercenary space fighter. But, as you explore the vastly detailed world of Tachyon: The Fringe, you will often find that the most powerful weapon on your ship is in your head.
Why similar: Space Sim 51.6% ★, Simulation 32.7%, Space 15.7%
Gravitation is a sandbox simulation set in the vastness of the cosmos and built on the laws of real-world physics.
Why similar: Space Sim 37.7% ★, Simulation 23.3%, Strategy 21.1%, Space 7.8%, Exploration 5.5%
Our goal is to depict the possibilities of space exploration & combat within a realistic environment- to emphasize the "science" in science-fiction. Key features to include: proper orbital mechanics for all objects in space, detailed ship system control, functionality, inter-dependency & damage reaction.
Why similar: Space Sim 58.9% ★, Simulation 29.6%, Space 11.5%
A futuristic sci-fi persistent universe exploration game with one million stars and 18 million planets and moons. Fly your ship to any star and explore its solar system. Claiming stars, planets and moons will make them yours forever - other players will see your discoveries and you will see theirs.
Why similar: Space Sim 45.4% ★, Simulation 26.2%, Exploration 8.8%, Space 8.6%, 3D 5.3%
Spaceflight add-on for Microsoft Flight Simulator X
Why similar: Space Sim 42.2% ★, Simulation 40.4%, Space 17.4%
A casual space simulation game where you perform orbital manoeuvres on satellites to change their orbit and complete missions.
Why similar: Space Sim 43.2% ★, Simulation 28.4%, Space 12.6%, Physics 9.5%, Sci-fi 5.6%
This simulation software brings the solar system to your fingertips, allowing you to explore the orbits of planets and witness the fascinating effects of introducing new cosmic objects like asteroids, extra suns, or even a black hole.
Why similar: Space Sim 44.8% ★, Simulation 26.8%, Space 9.8%, Exploration 7.9%, Physics 5.1%
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 37.2% ★, Simulation 22.9%, Strategy 20.4%, Space 10%, Sci-fi 5%
You are the supreme commander who directing the construction of a galactic space base. You need to manage the living and administrative needs of the space base residents, establish the industrial chain for space docks and starship, and ultimately complete a dream starship.
Why similar: Space Sim 35.8% ★, Simulation 19.8%, Strategy 12.9%, Building 12%, Base Building 10.8%
A sci-fi settlement building game with orbital mechanics. Start from a spaceship, scan asteroids, manage fuel, ore, electricity, time, and sanity, while expanding your settlement, exploring an alien solar system, and building stations and spacecraft to support your growing colony.
Why similar: Space Sim 35.1% ★, Simulation 11.9%, Strategy 10.9%, Building 9.8%, Base Building 8.9%
The world's first science-based photorealistic interactive 3D planetarium that models the entire Universe, using procedural generation for uncharted areas.
Why similar: Space Sim 47.9% ★, Simulation 29.3%, Space 12.8%, Exploration 9.2%, Singleplayer 0.7%
Space Sim Tycoon – A sandbox transportation tycoon game where you can explore forbidden planets, gather resources, craft goods, and establish routes to manage your space empire.
Why similar: Space Sim 36% ★, Simulation 23%, Strategy 13.8%, Building 8.9%, Space 8.4%
A small quick game about building a factory to launch planets into a solar system! Grow your base and increase production to make the ultimate factory for launching planets!
Why similar: Space Sim 34.7% ★, Simulation 22.3%, Strategy 20.2%, Space 7.6%, Base Building 6.3%
As the CEO of a spaceship design company, arrange blocks with different modes and functions to build powerful ships. Use resources from battles to upgrade blocks and acquire new ones through supplies. Strategically enhance your ship to maximize performance and defeat competitors.
Why similar: Space Sim 36.5% ★, Simulation 23.6%, Strategy 20.5%, Space 8.1%, Base Building 6.1%
Will you make the grade and save the planet? Become a cadet on your first day of training in this 3rd person space combat simulator.
Why similar: Simulation 40.5%, Space Sim 37.5% ★, Space 14.6%, Sci-fi 7.4%
Realistic simulation of spaceflight in a full sized Solar System, with all the planets and their major moons. using real forces, distances, velocities and time. Chapter 1: The Apollo Days. Incredibly detailed Apollo Program missions starting with Apollo 8 lunar orbit missions.
Why similar: Space Sim 40.7% ★, Simulation 37.8%, Space 21.6%
Pulse sweep is a short incremental game where enemies are only visible when the radar sweeps them.
Why similar: Space Sim 38.6% ★, Simulation 20.6%, Space 15.1%, Building 14.8%, Physics 10.2%
A grounded sci-fi station builder where you hold failing systems together while pursued by a relentless, energy-hungry swarm. As a fleet on the run, drop into hostile systems, gather what you can, and jump away before you are overwhelmed. Try to survive long enough to secure a future for humanity.
Why similar: Space Sim 33.2% ★, Simulation 12.8%, Strategy 12.5%, Base Building 12.3%, Space 10.9%
Build rockets and shoot them into space. Once you reach orbit, you are halfway to explore anywhere in the Solar System.
Why similar: Space Sim 41.6% ★, Simulation 22%, Space 18.4%, Exploration 9.4%, Physics 4.7%
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...
Why similar: Space Sim 25.4% ★, Simulation 23.7%, Strategy 22.8%, Space 9%, Base Building 7.8%
A "small" universe simulation, where you play as a black hole and try to absorb the whole universe. You decide the size and shape of the universe. Could also be used as a less meaningful CPU benchmark.
Why similar: Space Sim 51.3% ★, Simulation 22.9%, Space 15.9%, Physics 5.9%, 3D 3.4%
Explore a precisely recreated lunar surface built from real data and a JAXA-backed simulation.
Why similar: Space Sim 48.4% ★, Simulation 26.8%, Space 14.3%, Exploration 9.7%, Singleplayer 0.9%
Travelers in Space Crack is a survive game in deep space. Explore in different galaxy through space cracks. To find and gather useful resource, to trade and make money are all important to develop your own fleets. And only through build massive fleets, you triumph over the unknown evil forces.
Why similar: Space Sim 37.4% ★, Simulation 23.4%, Strategy 20.3%, Space 7.1%, Base Building 5.8%
The endless expanse of space has never been such a dangerous place. Take command as a Space Fleet Admiral who will face the challenge of galactic war and determine the fate of the universe.
Why similar: Space Sim 41% ★, Strategy 22.4%, Simulation 20.6%, Sci-fi 7%, Space 5.1%
In Delos, you are the space traffic controller managing the flow of ships at a bustling space station. Direct docking, allocate resources, and prevent collisions in a real-time strategy setting. Balance efficiency and safety to maintain order in the interstellar hub.
Why similar: Space Sim 49.1% ★, Simulation 19.6%, Strategy 15.9%, Sci-fi 8.3%, 3D 6.2%
Navigate through a detailed simulation of the solar system, where you can explore planets, moons, and other celestial bodies up close. Access detailed information, images, interactive content, quizzes and even mini-games where you can try to land a space probe.
Why similar: Space Sim 47.3% ★, Simulation 28.3%, Exploration 9.1%, Space 8.6%, Physics 5.9%
A fantasy space agency management game! Manage your team, design your space ship and research new technology! Reach moons, planets and the void beyond. Can you reach the void? Can you bring Galduen to the void?
Why similar: Space Sim 41% ★, Space 15.8%, Strategy 13.6%, Simulation 12.4%, Exploration 10.5%
Play as an A.I tasked with helping mankind explore the vastness of space. Customize your ship, recruit a crew, battle alien vessels, research new technology and explore randomly generated universes.
Why similar: Space Sim 37.6% ★, Simulation 24.6%, Strategy 23.3%, Space 14.5%
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 27.6% ★, Simulation 24.1%, Space 15.3%, Physics 7.6%, Building 6.4%
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 43.3% ★, Strategy 12.8%, Simulation 10.5%, Space 9.1%, Sci-fi 7.6%
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 Sim 30.4% ★, Simulation 23.9%, Space 19.1%, Strategy 15.2%, Sci-fi 7.5%
Build, launch and manage realistic space missions across our solar system, placing satellites and telescopes in precise orbits. Explore planets, collect valuable scientific data and sell your findings to expand your rising aerospace empire.
Why similar: Space Sim 41.1% ★, Simulation 17.5%, Strategy 15.9%, Space 9.5%, Exploration 5.1%
Take the position of a CEO of a space transport company and become a new major player in the industry. Space Company Simulator is a realistic management sim game that will challenge your planning skills as you strive to launch the first manned mission to Mars.
Why similar: Space Sim 28% ★, Simulation 16.8%, Strategy 15.9%, Space 11.5%, Base Building 10.8%
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 36.5% ★, Space 19.9%, Simulation 17.3%, Strategy 14.2%, Sci-fi 6.3%
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 Sim 24.9% ★, Space 22.9%, Simulation 22.6%, Strategy 15%, Building 8.3%
Become a pioneer of spaceflight. As an engineer in the Soviet Space Program you will be responsible for repairing, fixing and building the iconic spacecraft and rockets from the R-7 family.
Why similar: Space Sim 30% ★, Simulation 22.8%, Space 11.4%, Building 9.9%, Physics 6.5%
Combining the best of space combat and real time strategy. Victory can be tactical, a dogfight or capital ship slugging match - depending on how you decide to achieve it. Space combat on a RTS scale with space sim savagery.
Why similar: Simulation 25.5%, Strategy 25%, Space Sim 21.6% ★, Space 20.4%, Sci-fi 7.6%
Shoting!!!
Why similar: Space Sim 41.2% ★, Simulation 26.4%, Strategy 22.8%, Space 9.1%, Singleplayer 0.6%
Build a colony on an alien planet. Supply settlers, defend against meteors, upgrade your base, develop your economy, and fight for survival.
Why similar: Space Sim 37.2% ★, Simulation 24.3%, Strategy 21.1%, Space 7.4%, Base Building 5.5%
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.
Why similar: Simulation 25%, Space 24.7%, Strategy 23.6%, Sci-fi 13.7%, Space Sim 8.1% ★
A base-building and automation game about restoring a ruined planet. Mine resources, build factories, deploy AI drones, and revive a living world.
Why similar: Space Sim 37.6% ★, Simulation 20.4%, Base Building 9.9%, Space 8.3%, Building 5.6%
Lead a spaceyard: juggle contracts, design, prototype, and build all types of ships—from single-seat fighters to giant cruisers. Create custom vessels to meet precise client specs, then take the helm yourself to prove their worth.
Why similar: Space Sim 38% ★, Simulation 19.2%, Space 15.5%, Building 10.9%, Physics 7.4%
The Battle of Sol is an intense space action game where you participate in epic capital ship battles, thrilling dogfights, space station raids, and much more as you liberate humanity's solar system from enemies determined to bring us to its fiery end.
Why similar: Space Sim 39% ★, Simulation 35%, Space 18.4%, Sci-fi 7.7%
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 37.4% ★, Space 21.9%, Simulation 17%, Strategy 14.5%, Sci-fi 6.9%
Objects in Space is a retro space game centred on 2D point-and-click stealth action in a massive open world. Players have their own customisable ships and can meet people, become a trader, bounty hunter, explorer, scavenger or all of them at once.
Why similar: Simulation 28%, Space Sim 27% ★, Strategy 22.3%, Space 18.6%, Sci-fi 4.2%
In the midst of a seemingly hopeless war among the stars, take control of highly customizable spacefighters to experience classic space combat action throughout a story-driven campaign.
Why similar: Space Sim 56.3% ★, Space 17.6%, Simulation 15.8%, Sci-fi 9.1%, Singleplayer 1.1%
Evil A.I. Space Bots are attacking Earth, You and Your team of Good A.I. Bots must stop them !
Why similar: Space Sim 49.1% ★, Simulation 30%, Space 14.1%, 3D 6%, Singleplayer 0.8%
A physics-driven automation game where your workers bounce between buildings like pinballs. Design bounce paths, build production chains, and survive asteroid waves.
Why similar: Space Sim 28.3% ★, Strategy 19%, Simulation 17.3%, Base Building 13.6%, Building 6.6%
They're back...only this time the heinous aliens are out to destroy Earth and rule the new frontier. As X-COM commander, it's your sole duty to protect humanity and the prized mining operations in outer space.
Why similar: Strategy 36.8%, Space Sim 34.3% ★, Space 16.5%, Sci-fi 11.6%, Singleplayer 0.8%
Explore a unique, procedurally generated galaxy filled with alien artifacts and resources to extract and exploit. Mine asteroids, harvest nebula, pilot unique ships and find new and strange things in the void between stars as you struggle to survive long enough to find another home.
Why similar: Space Sim 35% ★, Simulation 13.6%, Strategy 12.8%, Building 9.2%, Space 8.3%
I am excited to release my first game on Steam! SimpleRockets was released in 2013 for mobile and I've put a ton of work into it to get it ready for PC and Mac. It was inspired by KSP, and it offers a simpler 2D experience for building rockets and exploring space with realistic orbital mechanics.
Why similar: Space Sim 50.1% ★, Simulation 28.9%, Physics 10.8%, Space 10.2%
Tiny Space Academy is a 2D space sim where you can grow your own space agency and explore our solar system with rockets you design! Learn basic orbital mechanics, run science experiments, and get your astronauts back to Earth safely.
Why similar: Space Sim 37.6% ★, Simulation 17.7%, Space 16%, Building 11.4%, Physics 8.7%
宇宙探索，在浩瀚的宇宙里，人类正在探索了解宇宙，以获得对宇宙的更多认知，促进人类的发展强大，抵御未知宇宙生物的侵略，然而，外星人得知这一消息 ......
Why similar: Simulation 35.4%, Strategy 32.3%, Space Sim 21.5% ★, Space 7%, Sci-fi 3.9%
In a remote corner of the Milky Way, you, a star hunter, will control a fleet, take on a wide variety of bounty contracts and missions, and venture into the vastness of space. You will hunt for mysterious items for your employers and explore specific targets in uncharted territory.
Why similar: Space Sim 28.6% ★, Strategy 23.5%, Simulation 16.6%, Space 16.6%, Base Building 10.6%
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 46% ★, Space 23.8%, Simulation 12.4%, Sci-fi 9.7%, Exploration 7.6%
