60+ similar titles based on shared tags and player behavior. Themes include Space, Space Sim, Simulation, Singleplayer.
Simulate being a celestial body in an open universe, using the rules of relativity and astrophysics to plunder mass and gradually evolve from a gas cloud into a planet, a star, or even a supermassive black hole.
Terminal Closure
Take your place at the tactical station of a spaceship and face a brutal war in the near future for control of the outer planets in this realistic space warfare simulator. Choose your side and lead your ship into battle, maneuvering and fighting according to the laws of orbital mechanics.
Guardian Above the Domes
Guardian Above the Domes is a real-time artillery game built around realistic orbital mechanics. Bombard the enemy from a lone space station, defend the last domed cities on an airless planet, and uncover its lost history alongside a cat-shaped AI.
Take your place at the tactical station of a spaceship and face a brutal war in the near future for control of the outer planets in this realistic space warfare simulator. Choose your side and lead your ship into battle, maneuvering and fighting according to the laws of orbital mechanics.
Why similar: Space Sim 36.2%, Real Time Tactics 21%, Simulation 13.2%, Physics 11.3%, Space 8.1%
Guardian Above the Domes is a real-time artillery game built around realistic orbital mechanics. Bombard the enemy from a lone space station, defend the last domed cities on an airless planet, and uncover its lost history alongside a cat-shaped AI.
Why similar: Space Sim 38.8%, Physics 12.1%, Real Time Tactics 11.5%, Minimalist 11.3%, Simulation 9.8%
Step aboard your starship and prepare for an intergalactic showdown in Don’t Lose Your Ship, a fast-paced, team-based 2D multiplayer game that combines strategy, coordination, and chaos. This game pits two teams against each other in a battle for supremacy on a grid-based map.
Why similar: Space Sim 40.3%, Real Time Tactics 24.9%, Strategy 13.8%, Action 9.4%, Top-Down 6.7%
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 40.5%, Education 15.7%, Realistic 11.6%, Physics 11%, Simulation 9.5%
Take to the stars and explore the solar system. Master the orbital mechanics of N-body physics. Plot a careful course to complete your mission.
Why similar: Space Sim 46.9%, Simulation 17.4%, Physics 14.4%, Strategy 12.9%, Space 8.3%
Master spaceflight and progress through realistic orbital mechanics challenges of increasing complexity. Plot maneuvers to coordinate transfer orbits, gravity assists, and high-stakes rendezvous.
Why similar: Space Sim 28.1%, Simulation 16.3%, Physics 14.2%, Education 11%, Minimalist 10.5%
There is nothing in void. Discorver new things in this empty place, and give them your own meaning. In this quiet space where converge to zero, Can you find a miracle?
Why similar: Collectathon 26.7%, Space Sim 24.4%, Physics 12.8%, Minimalist 11.4%, Simulation 8.6%
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 50%, Simulation 19%, Open World 12%, Realistic 11%, Space 7.9%
Build spacecraft with a realistic part-based editor and fight multiplayer orbital wars using Keplerian, Newtonian, and patched-conics flight. Engage with lasers, railguns, missiles, and EW in fast, decisive battles shaped by strategy and logistics.
Why similar: Space Sim 44.4%, Real Time Tactics 14.8%, Simulation 11.7%, Physics 9%, Strategy 8.5%
Explore every star system, orbit numerous stars, maneuver to various planets, and survive asteroids the longest aboard countless miniaturized rockets in Rocket Hit.
Why similar: Space Sim 54.3%, Minimalist 20.7%, Top-Down 10.6%, Physics 9.4%, Space 5%
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 47.8%, Education 19.2%, Simulation 17.8%, Physics 9%, Space 6.2%
In GravBoost, gravity is your greatest ally and your deadliest foe. Master the art of the gravitational slingshot to intercept orbital targets. Manage your fuel and time wisely in this physics-driven space sim where precision is the only way to survive the cosmic pull.
Why similar: Space Sim 43.7%, Physics 16.6%, Simulation 13.7%, Minimalist 10.4%, Top-Down 9.7%
Come with us now on a journey through music and space... To the world of VOYAGER ◯∘ A minimalist, relaxing & atmospheric experience to chill out to for a while…
Why similar: Space Sim 33.8%, Abstract 15.1%, Minimalist 14.3%, Philosophical 12.8%, Physics 9.4%
Orbitous is an action roguelike where every object has gravity. Every planet, moon, star, enemy, projectile, is attracted to one another. Nothing is stationary in this procedurally generated galaxy. Fly between star systems, build weapons, and fight enemies.
Why similar: Space Sim 44.7%, Action Roguelike 19.8%, Open World 11%, Physics 8.1%, Space 6.3%
Master physics in this hardcore orbital simulator where Einstein’s theories come to life. Plot trajectories and manipulate spacetime via general relativity, time dilation, and length contraction. Command your starship, outrun time, and explore a universe governed by real physics.
Why similar: Space Sim 46.3%, Simulation 17.2%, Minimalist 15.6%, Physics 7.9%, Realistic 7.5%
/You are the captain! Pull yourself together and get us out of here... sir!/ — gather EXPARTS, advance weapons, master space flight, and rain metal onto your enemies in this physics-driven space sim roguelike where playing chicken with asteroids is just as dangerous as enemy fire.
Why similar: Space Sim 37.8%, Action Roguelike 17.7%, Physics 14.1%, Simulation 7%, Minimalist 5.8%
Captain your own starship in this 2D, open-world space-sim. Command your crew as you explore, trade, mine, smuggle, steal and fight your way across the milky-way galaxy with real-time, tactical combat.
Why similar: Space Sim 39.9%, Real Time Tactics 22.8%, Open World 14.6%, Simulation 9.6%, Strategy 8.4%
Set off into space on your personal spaceship and rescue all the lost catstronauts! Navigate through flying obstacles while managing fuel and health. Don’t forget to watch your ship’s weight — it affects your maneuverability. Enjoy a relaxing gameplay experience with pixel art and cozy cosmic vibes!
Why similar: Space Sim 33.6%, Action Roguelike 19.1%, Physics 11.9%, Open World 11%, Top-Down 7.8%
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 41.6%, Simulation 15.9%, Strategy 14.4%, Open World 11.1%, Action 10.5%
Build a retro-industrial space program, manage your launch base, assemble and upgrade the Columbiad, then manually guide each mission through atmospheric ascent, orbital insertion, lunar transfer, and recovery in a low-poly spaceflight management adventure.
Why similar: Space Sim 38.7%, Real Time Tactics 15.8%, Simulation 10%, Education 9.5%, Realistic 9.2%
A star roars under you. Your probe catches a solar flare and you pull on it. Your friend chirps at you "We should fish here awhile" — but the probe catches something else: a distress beacon from a black hole. A signal just like the one you heard yesterday, by a quasar a trillion light years away.
Why similar: Space Sim 31.1%, Philosophical 18.3%, Collectathon 16.3%, Abstract 14%, Open World 9.7%
GeoLight is an endlessly replayable arena roguelite action-packed experience with tight, responsive controls and a focus on high-stakes decision-making. You are not just surviving. You are evolving.
Why similar: Space Sim 32.5%, Action Roguelike 17.6%, Abstract 13.1%, Minimalist 11.5%, Roguelite 8.9%
A real-time 3D space simulator and interactive planetarium. Travel to any planet, moon, star, or galaxy and view it from any point in space and time. Accelerate time, land on alien worlds, and expand the universe with community-made add-ons.
Why similar: Space Sim 46.2%, Simulation 16.7%, Education 15.4%, Open World 8.9%, Physics 7%
Star Defence is a unit-placement real-time tower defense game in which you can place any unit you like on a 2D free-form plane. All units in the game, including enemies, are composed of units you place. Place your units in a balance between enemies and allies to develop your civilization.
Why similar: Space Sim 30.8%, Real Time Tactics 26.9%, Roguelite 10.1%, Top-Down 9.5%, Simulation 7%
Doppelganger is a a top-down tactical space game. Command your ship, route power to critical systems, and outsmart enemy fleets. Earn points to upgrade your weapons and defenses.
Why similar: Space Sim 39.3%, Real Time Tactics 22.2%, Minimalist 11.9%, Simulation 10.1%, Action 10%
Design massive ships, bristling with weapons, on a macro scale. Engage in fleet-vs-fleet battles, featuring many different tactics. Play alone or in Coop combat missions, or form two teams of players (each with own fleet) to fight in an arena.
Why similar: Space Sim 34%, Real Time Tactics 24.1%, Strategy 11.2%, Physics 10.6%, Space 8.9%
Build your defenses using 15 different types of blocks and survive fifteen waves. You'll earn XP for every wave you survive. Then switch sides and try to destroy your own base. The faster you are, the higher the XP multiplier. Use the XP you've earned to unlock new blocks and cards, and try again.
Why similar: Action Roguelike 21.3%, Real Time Tactics 19.3%, Abstract 14.8%, Strategy 13.8%, Action 9.8%
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 70%, Simulation 21.9%, Space 8.1%
PlanetDrop - A Tiny Space Adventure is a computer game where you command a spaceship in an orbit of a planet. Your primary task is to capture "drop zones" with your shuttles and commandos. You rely on stealth, agility and speed, rather than on firepower.
Why similar: Space Sim 39.7%, Real Time Tactics 21.1%, Simulation 14.3%, Minimalist 11.6%, Action 10%
A first-person space sim and persistent career roguelite where you build your own ship and live in it. Take contracts from human and alien factions in a procedural galaxy at war, grow from a micro-vessel to a capital ship, and make one life count.
Why similar: Space Sim 39.6%, Real Time Tactics 17.9%, Open World 10.2%, Simulation 9.1%, Strategy 7.7%
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: Space Sim 33.4%, Real Time Tactics 19%, Strategy 13.5%, Simulation 12.9%, Minimalist 10.9%
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 53.8%, Open World 17.9%, Simulation 11.8%, Space 9.9%, Realistic 6.6%
Gravity Slugger is an arcade-style wave defense game where you use gravity and orbital mechanics to fling projectiles at attacking enemy spaceships. Dodge enemies, gather salvage, and upgrade your skills with chaotic and deadly abilities in this physics-based 2D game.
Why similar: Space Sim 27.9%, Action Roguelike 20.8%, Physics 12.5%, Roguelite 11.9%, Top-Down 7.7%
Logos Orbit is an emergent cosmic tuning simulation where you rewrite the "Logos" of an ever-expanding universe to control the collision and equilibrium of stars. Place gravity-altering Sigils to tune the orbits of star systems on the brink of collapse.
Why similar: Space Sim 31.7%, Minimalist 18%, Physics 15.6%, Logic 10.9%, Space 9%
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.
Why similar: Space Sim 34.4%, Simulation 16.3%, Open World 15.7%, Strategy 14.8%, Space 9.5%
Online multiplayer drone warfare in space. Persistent universe, keeps going when you aren't logged in.
Why similar: Space Sim 40%, Real Time Tactics 19.6%, Minimalist 11%, Simulation 9.6%, Strategy 9.5%
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 58.9%, Simulation 13.1%, Space 12%, Strategy 10.6%, Action 5.4%
A casual space simulation game where you perform orbital manoeuvres on satellites to change their orbit and complete missions.
Why similar: Space Sim 51.5%, Simulation 21%, Physics 18.6%, Space 8.9%
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 49%, Simulation 19.3%, Strategy 16.9%, Physics 7.7%, Space 7%
This is a simple simulator that simulates the formation of life through simple physical rules. Here, you can define different balls with physical properties, let them affect each other, and then form something similar to life. !!! If you want to restart, click the settings button and click Play!!!
Why similar: Space Sim 26.2%, Education 15.4%, Open World 12.2%, Nature 10.2%, Physics 9.4%
Explore a precisely recreated lunar surface built from real data and a JAXA-backed simulation.
Why similar: Space Sim 55.7%, Simulation 19.1%, Open World 15.5%, Space 9.7%
Physics-based space combat where every battle escalates into chaos. Destroy ships, star bases, and hyperspace carriers before they overwhelm you.
Why similar: Space Sim 34.4%, Action Roguelike 22.2%, Simulation 14.4%, Roguelite 9.6%, Action 9.4%
In Keep the Ship Running, you play as a one-armed maintenance robot navigating the weightlessness of space with clumsy, physics-based movement. Pilot your ship, repair hull breaches, and take on a variety of challenging missions.
Why similar: Space Sim 36.2%, Simulation 21%, Physics 15.6%, Strategy 12.7%, Action 7.4%
A hard-sci-fi orbital settlement sim where you mine asteroids, build infrastructure, fight enemy, and operate inside a living solar system shaped by orbital mechanics, limited information, and long-distance logistics.
Why similar: Space Sim 41.9%, Physics 10.7%, Open World 10.4%, Simulation 8.8%, Strategy 8.2%
Experience the thrill of live space operations by controlling various Research, Experimental, and Demonstration (RED) spacecraft to accomplish real world tasking. The first mission is SpaceCowboy ADR (Active Debris Remediation). Clean up dangerous debris to earn ADR bucks and refuel to stay alive.
Why similar: Space Sim 36.3%, Education 18%, Physics 12.7%, Open World 12%, Space 8.6%
Try to survive in infinite asteroid cloud as long as possible in reworked tower defence style. FInd your own playstyle and beat your own records or chillout with original ambient soundtracks. Build, explore, think - everything to create your own colony in this cold space.
Why similar: Space Sim 36.5%, Real Time Tactics 22.4%, Strategy 10.1%, Roguelite 9.3%, Space 8.5%
Start as an asteroid, grow by absorbing other celestial bodies to become a planet, a star, and ultimately a black hole. Experience realistic gravity and orbital physics in an ever-evolving sandbox universe.
Why similar: Space Sim 36.4%, Physics 13.7%, Simulation 9.7%, Space 9.5%, Abstract 9.5%
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 48.9%, Physics 11.6%, Strategy 9.1%, Simulation 7.3%, Open World 7.2%
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 48.6%, Simulation 16%, Education 13.7%, Space 12.7%, Physics 9%
Gravity and exploration sandbox
Why similar: Space Sim 37.5%, Education 13.8%, Physics 9.3%, Open World 9.2%, Simulation 8.7%
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 63.6%, Simulation 25%, Space 11.4%
Welcome to the future of space warfare! Star Fleet II: Krellan Commander puts you in command of an advanced space battlecruiser and tasks you with exploring sectors, fighting and boarding enemy ships, and invading planets. Manage your ship, crew and escorts effectively and find your way to victory!
Why similar: Space Sim 35.5%, Real Time Tactics 17.9%, Minimalist 13.6%, Simulation 11.3%, Strategy 10%
Embark on humanity’s greatest journey to the Moon with Lunaris. Take on the role of an astronaut navigating NASA’s Apollo missions, from the roaring launch of Saturn V to stepping on the lunar surface. Experience the triumphs, challenges, and legacy of space exploration in this immersive simulator.
Why similar: Space Sim 47.2%, Simulation 19%, Education 12.5%, Realistic 8.3%, Physics 5.1%
Roguelike where even enemies, bosses, and their attacks are randomly generated. Beat enemies and take the weapons they were using! With 1-4 players, find and beat bosses in the open world and advance towards the source of the chaos! High difficulty, but adjustable. Completely free!
Why similar: Abstract 29.5%, Action Roguelike 27.3%, Open World 13.6%, Minimalist 12.2%, Top-Down 10.6%
Zero-Point is a 3D space roguelike featuring tactical ship-to-ship combat, crew command and an immersive view of your ship's interior. As Captain of a Star Federation cruiser, lead your crew and ship to victory over the rebellious Galactic Liberation Front!
Why similar: Space Sim 38.6%, Real Time Tactics 23.9%, Roguelite 11.7%, Strategy 8.7%, Space 8.6%
Command four space vessels and a band of revolutionary pirates into an all-consuming battle against impossible odds, because there just isn't enough Space for everyone!
Why similar: Space Sim 53.8%, Simulation 28.8%, Action 17.4%
Devices Disruptive Offense Simulator (D.D.O.S.) is a physics-based 1v1 combat game where you setup and distribute malicious devices to smash, shoot, blast and electrocute the hostile servers till they get denial-of-service.
Why similar: Real Time Tactics 22.5%, Physics 18.1%, Minimalist 17.3%, Strategy 14%, Abstract 12.5%
This is a simulation based upon real physics. Its specifically for use with 3D headsets such as the HTC Vive and Oculus quest. It gives you a 3D perspective of how gravity works and interacts on all the bodies in a solar system. You can experiment with creating your own solar system.
Why similar: Space Sim 43.3%, Education 19.7%, Simulation 16.7%, Physics 9.7%, Realistic 6.2%
Operate the Starship space launch system and learn how to catch a rocket to understand what it takes to colonize Mars in this ever-evolving simulation of SpaceX Starbase Texas.
Why similar: Space Sim 43.1%, Education 11.7%, Simulation 11.5%, Realistic 8.6%, Open World 8.1%
In a dystopian spacefaring future, mankind struggles to maintain their humanity. Take control of devastating spacecrafts, upgrade their loadouts and offer justice to the highest bidder. Become a space-traveling mercenary. Become the VOIDHUNTER.
Why similar: Space Sim 37%, Action Roguelike 19%, Open World 13.7%, Roguelite 10.7%, Space 8.2%
