- #1 Rogue System
97% matchMixed67% of 274 reviews2022
Dev: Digits Crossed Interactive, LLCPub: Image Space Incorporated
Windows
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 46.2% ★, Simulation 34.1%, Space 19.7%
- #2 Spaceflight Simulator
96% matchOverwhelmingly Positive96% of 7,486 reviews2022
Dev: Team Curiosity ✦
Windows · Mac
Median: 4.6 hrsMean: 14.2 hrs≥1hr: 84%
In Spaceflight Simulator, you will get to build your rockets, plan launches and flights, attempt landings, deploy payloads and explore new worlds.
Why similar: Space Sim 44.4% ★, Space 33.6%, Simulation 22%
- #3 REAL MOON
96% matchMixed68% of 112 reviews2025
Dev: historia Inc.
Windows
Explore a precisely recreated lunar surface built from real data and a JAXA-backed simulation.
Why similar: Space Sim 40.7% ★, Simulation 33%, Space 26.3%
- #4 ISS Simulator
95% matchMostly Positive78% of 91 reviews2024
Dev: Spacedata.incPub: 株式会社スペースデータ
Windows
The ultimate space simulator game, precisely modeling the space and space environment inside the International Space Station (ISS).
Why similar: Space Sim 43.9% ★, Simulation 38.7%, Space 17.4%
- #5 Universe Sandbox
94% matchOverwhelmingly Positive96% of 30,587 reviews2015
Dev: Giant Army
Windows · Mac
Median: 2.4 hrsMean: 23.5 hrs≥1hr: 71%
Create & destroy on an unimaginable scale with a realistic physics-based space simulator. Explore the beauty of our universe and the fragility of our planet. Use science to bend the laws of gravity, collide planets, boil away oceans, fire epic space lasers, and customize your universe.
Why similar: Space 46.1%, Simulation 29.5%, Space Sim 24.4% ★
- #6 Kerbal Space Program
94% matchOverwhelmingly Positive95% of 133,317 reviews2015
Dev: SquadPub: Private Division
Windows · Mac · Linux
Median: 5.3 hrsMean: 65.2 hrs≥1hr: 84%
In Kerbal Space Program, take charge of the space program for the alien race known as the Kerbals. You have access to an array of parts to assemble fully-functional spacecraft that flies (or doesn’t) based on realistic aerodynamic and orbital physics.
Why similar: Space 42.6%, Space Sim 32.8% ★, Simulation 24.5%
- #7 StarbaseSim
92% matchVery Positive97% of 59 reviews2025
Dev: AshtorakSimGames
Windows · Linux
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 48.5% ★, Simulation 30.7%, Space 20.8%
- #8 Celestial Command
93% matchMixed63% of 687 reviews2014
Dev: Romenics
Windows · Mac · Linux
Median: 1.5 hrsMean: 6.3 hrs≥1hr: 62%
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 46.4%, Simulation 30.6%, Space Sim 23% ★
- #9 Flight Of Nova
91% matchVery Positive94% of 513 reviews2022
Dev: Aerovery Lab
Windows · Linux
Flight of Nova is a simulator based on newtonian mechanics in which you control spacecraft in the Noren star system. You fly multiple types of spacecraft doing transport and search missions in an environment with realistic aerodynamics and orbital physics.
Why similar: Space Sim 51.5% ★, Simulation 27.3%, Space 21.3%
- #10 Children of a Dead Earth
91% matchVery Positive90% of 902 reviews2016
Dev: Q Switched Productions, LLC
Windows · Mac
Median: 2.2 hrsMean: 23.8 hrs≥1hr: 65%
The most scientifically accurate space warfare simulator ever made. Now with Steam Workshop!
Why similar: Space 42.6%, Simulation 36.3%, Space Sim 21.1% ★
- #11 Reentry - A Space Flight Simulator
88% matchOverwhelmingly Positive97% of 1,212 reviews2025
Dev: Lyra Creative
Windows
Median: 2.0 hrsMean: 5.7 hrs≥1hr: 70%
Do you have what it takes to become an astronaut? Reentry is a realistic space flight simulator inspired by the early NASA space programs, from orbiting Earth in Mercury and Gemini, to the moon landing in project Apollo. Learn the procedures. Operate the spacecraft. Complete the mission.
Why similar: Space Sim 41.7% ★, Space 35.2%, Simulation 23.2%
- #12 Rocket Science
90% matchVery Positive80% of 160 reviews2020
Dev: unbeGames
Windows
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 40.8% ★, Space 37%, Simulation 22.2%
- #13 SpaceEngine
89% matchOverwhelmingly Positive96% of 14,936 reviews2019
Dev: Cosmographic Software
Windows
Median: 2.1 hrsMean: 47.7 hrs≥1hr: 66%
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 42% ★, Space 38.3%, Simulation 19.7%
- #14 Lunar Flight
89% matchVery Positive81% of 675 reviews2012
Dev: Shovsoft
Windows · Mac
Median: 1.5 hrsMean: 3.4 hrs≥1hr: 70%
A modern take on the classic arcade game, Lunar Lander, Lunar Flight extends the experience to a fully fictionalized and accessible lunar module simulator
Why similar: Simulation 53.1%, Space 46.9%
- #15 Solar System VR
87% matchMostly Positive74% of 321 reviews2020
Dev: Split Light Studio
Windows
An educational virtual reality journey through space. Be the first space tourist in history and explore planets and moons in our Solar System like never before. You can experience a journey to the Earth's moon, explore Mars, and even see the surface of Enceladus, one of Saturn's moons.
Why similar: Space 54.9%, Simulation 45.1%
- #16 Kerbal Space Program 2
86% matchMostly Negative27% of 31,135 reviews2023
Dev: Intercept GamesPub: Private Division
Windows
Median: 7.7 hrsMean: 19.1 hrs≥1hr: 86%
Kerbal Space Program 2 is the sequel to the acclaimed space-flight simulation game Kerbal Space Program. Enter the next generation of space adventure with exciting new parts, stunning visuals, fully revamped UI and Map View, and rich new environments to explore.
Why similar: Space 39.3%, Space Sim 38.6% ★, Simulation 22.1%
- #17 0RBITALIS
86% matchMostly Positive72% of 308 reviews2015
Dev: Alan ZucconiPub: Mastertronic
Windows · Mac
Median: 1.0 hrsMean: 3.8 hrs≥1hr: 50%
0RBITALIS is a satellite launching simulator with a retro-puzzle style. Launch your satellite into orbit and go head to head with the dominant force that formed the entire universe: Gravity.
Why similar: Simulation 50.1%, Space 49.9%
- #18 Ship Simulator Realistic
84% matchMixed58% of 78 reviews2022
Dev: Gregory Nikolaidis
Windows
Ship Simulator Realistic experience the real simulation. The game will be based on a free roam aspect to explore the Greece Scenery in a physics based game , realistic handling and many more features.
Why similar: Simulation 100%
- #19 Space Mechanic Simulator: Prologue
82% matchMostly Positive80% of 64 reviews2023
Dev: Atomic JellyPub: Wildlands Interactive
Windows
Space Mechanic Simulator: Prologue is a story prelude to the full version, which will introduce you to the world of cosmic repairs, greedy corporations, and cutting-edge technology.
Why similar: Space Sim 43.9% ★, Space 30.4%, Simulation 25.7%
- #20 The Battle of Sol
84% matchMixed57% of 102 reviews2015
Dev: Bit Planet Games, LLC
Windows
Median: 18 minMean: 12.2 hrs≥1hr: 23%
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: Simulation 39.3%, Space 30.9%, Space Sim 29.9% ★
- #21 Go For Launch: Mercury
82% matchVery Positive81% of 73 reviews2021
Dev: Joe ChisholmPub: First Time Games
Windows
Re-live the early days of spaceflight in the accurate, detailed and exciting simulation of the Mercury spacecraft.
Why similar: Space Sim 48.6% ★, Space 27.7%, Simulation 23.8%
- #22 Satellite Command
83% matchMixed64% of 80 reviews2016
Dev: Stormtide
Windows
Satellite Command is a realistic, relaxing astrophysics simulator. Complete contracts with real data, launch and take control of ever more powerful Satellites, research advanced technology and build your Space Agency!
Why similar: Space Sim 40.5% ★, Space 34.3%, Simulation 25.1%
- #23 Space Mechanic Simulator
81% matchMixed63% of 117 reviews2023
Dev: Atomic JellyPub: Wildlands Interactive
Windows
Become a Space Mechanic! Get your hands dirty, explore the depths of space and repair broken machinery. Diagnose problems using diagrams and tools, perform repairs, manage your resources and watch the simulated machinery come alive. Or just gaze upon the beauty of the Solar System.
Why similar: Space Sim 42.3% ★, Space 33.8%, Simulation 24%
- #24 Tiny Space Academy
81% matchMixed63% of 54 reviews2021
Dev: Full Orbit Games LLC
Windows · Mac
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 38.1% ★, Space 35.6%, Simulation 26.3%
- #25 SpaceBourne
80% matchMostly Positive77% of 805 reviews2020
Dev: Burak Dabak
Windows
Median: 1.9 hrsMean: 9.7 hrs≥1hr: 58%
Spacebourne is an open space exploration game with Rpg elements. Its world consists of different factions at war. You as an expert pilot need to choose your side or be on no one's side and create a force of your own. Load up your weapons, Ready your ship and warp to adventure.
Why similar: Space 40%, Space Sim 30.4% ★, Simulation 29.6%
- #26 Infinity: Battlescape
79% matchVery Positive80% of 751 reviews2019
Dev: I-Novae Studios, LLC
Windows
Median: 2.9 hrsMean: 10.0 hrs≥1hr: 74%
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.
Why similar: Space 39%, Space Sim 34.5% ★, Simulation 26.5%
- #27 Elite Dangerous
77% matchMostly Positive77% of 105,113 reviews2015
Dev: Frontier Developments
Windows
Median: 18.4 hrsMean: 146.5 hrs≥1hr: 89%
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 48.3% ★, Space 35.9%, Simulation 15.8%
- #28 SimpleRockets
78% matchVery Positive85% of 363 reviews2015
Dev: Jundroo, LLC
Windows · Mac
Median: 5.4 hrsMean: 6.7 hrs≥1hr: 96%
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 43.6% ★, Simulation 36.9%, Space 19.5%
- #29 Apollo 11 VR
78% matchVery Positive82% of 606 reviews2016
Dev: Immersive VR Education Ltd.
Windows
Median: 1.1 hrsMean: 1.5 hrs≥1hr: 60%
Apollo 11 VR is the story of the greatest journey ever taken by humankind. This VR experience is a recreation of the events which took place between July 16th and July 24th 1969. Now for the first time ever you get to experience this historic event through the eyes of those who lived through it.
Why similar: Simulation 59.3%, Space 40.7%
- #30 Space Company Simulator
79% matchMostly Negative28% of 178 reviews2019
Dev: IntermarumPub: All in! Games
Windows
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 36.1% ★, Space 32.3%, Simulation 31.6%
- #31 Archean
74% matchVery Positive88% of 236 reviews2024
Dev: batcholi
Windows · Linux
Gather resources, craft components, build vehicles, and code their logic in a physics-driven engineering sandbox and full scale space sim.
Why similar: Space Sim 43.3% ★, Space 34.5%, Simulation 22.2%
- #32 Space Docker VR
75% matchVery Positive95% of 149 reviews2021
Dev: Cat Commandos
Windows
Median: 2.2 hrsMean: 5.0 hrs≥1hr: 79%
A hardcore flight simulator for VR! Get in the cockpit, pilot a ship, and navigate hazardous environments on a journey to become an expert docker!
Why similar: Space Sim 37.8% ★, Space 35.7%, Simulation 26.5%
- #33 Space Station Manager
77% matchMixed45% of 77 reviews2020
Dev: Ondrej Hroch
Windows
Space Station Manager is an exciting game where you own a space company, your main goal is to build a space station, make profit, grow your business, build an economical network, and expand beyond the solar system.
Why similar: Simulation 72.4%, Space 27.6%
- #34 WebbVR: The James Webb Space Telescope Virtual Experience
76% matchVery Positive90% of 70 reviews2018
Dev: Space Telescope Science Institute
Windows
Join the James Webb Space Telescope in orbit beyond the Moon and explore the universe from its perspective. Planetary systems are born, galaxies form, and stars emerge from within colorful nebulas—all before your eyes.
Why similar: Simulation 43.4%, Space Sim 31.9% ★, Space 24.7%
- #35 Space Simulation Toolkit
75% matchVery Positive81% of 475 reviews2020
Dev: Pavel Kudinov
Windows
Physics sandbox game that uses a graphics card as a supercomputer. Change the laws of physics, design mechanisms, create A-Life worlds and inhabit them with living beings, experiment with evolution and AI.
Why similar: Simulation 40%, Space Sim 33.8% ★, Space 26.2%
- #36 Solar Nations 2
71% matchVery Positive90% of 71 reviews2025
Dev: Flomgus Games
Windows
In this Grand Strategy game, you take control of the Solar System's Great Powers in 2092 and weather the storm of change as you navigate the uncertain waters of the future. Control the greatest military forces in the world and wage wars on an epic scale: outer space is yours to conquer!
Why similar: Space 72.2%, Simulation 27.8%
- #37 Interstellar Transport Company
74% matchMixed67% of 408 reviews2019
Dev: MT Worlds
Windows · Mac · Linux
Median: 3.5 hrsMean: 5.9 hrs≥1hr: 77%
Build a galactic transportation empire and supply humanity with everything it needs to colonize the stars. In this sci-fi logistics simulator, grow your company from a local transport agency into an interstellar logistics behemoth! Singleplayer, vs AI, and online multiplayer.
Why similar: Space 49.8%, Simulation 29.6%, Space Sim 20.6% ★
- #38 Evochron Legacy SE
73% matchVery Positive83% of 440 reviews2016
Dev: StarWraith 3D Games LLC
Windows
Median: 1.6 hrsMean: 6.9 hrs≥1hr: 61%
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.
Why similar: Space Sim 45.5% ★, Space 31.9%, Simulation 22.6%
- #39 Buzz Aldrin's Space Program Manager
73% matchMostly Positive77% of 495 reviews2014
Dev: Polar MotionPub: Slitherine Ltd.
Windows
Median: 5.0 hrsMean: 9.4 hrs≥1hr: 94%
Space Program Manager (SPM) is the ultimate game of space exploration. It is the mid 1950s and the race for dominance between the US and the Soviet Union is about to move into a new dimension: space.
Why similar: Space 51.9%, Simulation 48.1%
- #40 1000 days to escape
71% matchVery Positive84% of 401 reviews2019
Dev: Lemon Squeezy
Windows
Median: 2.1 hrsMean: 3.4 hrs≥1hr: 78%
Only 1000 days left until the end of the world. You have to realize the largest space program ever to save as many people as you can. Explore planets, colonize them, help people find a new home.
Why similar: Space 40%, Space Sim 38.7% ★, Simulation 21.3%
- #41 Orbit HD
73% matchMixed58% of 89 reviews2015
Dev: Brainchild
Windows · Mac · Linux
Median: 2.9 hrsMean: 3.4 hrs≥1hr: 76%
Explore the cosmos as a comet, orbiting planets with a realistic gravity system and a backdrop of procedurally generated nebulae. Learn to use planetary gravity to your advantage, and relax in the ambience of space.
Why similar: Space 39.6%, Space Sim 39.1% ★, Simulation 21.3%
- #42 AGOS - A Game Of Space
72% matchMixed63% of 103 reviews2020
Dev: Ubisoft
Windows
Explore unique star systems in AGOS: A Game of Space! Scavenge resources, face the danger of space and save humankind.
Why similar: Space Sim 52.5% ★, Simulation 31.2%, Space 16.3%
- #43 ΔV: Rings of Saturn
67% matchVery Positive93% of 3,305 reviews2023
Dev: Kodera Software
Windows · Mac · Linux
Median: 8.3 hrsMean: 11.6 hrs≥1hr: 85%
A physics-based mining sim, set in the thickest debris field in Sol. Every action has a reaction, lasers are invisible without a medium, and your thrust is a potent weapon. Find trade, adapt your equipment to your playstyle, hire a crew to help. Unravel the mysteries of the rings, or just get rich.
Why similar: Space Sim 40.7% ★, Space 40.3%, Simulation 19%
- #44 Rover Mechanic Simulator
70% matchMostly Positive76% of 654 reviews2020
Dev: ▲ Pyramid GamesPub: Pyramid Games S.A.
Windows
Median: 4.4 hrsMean: 5.9 hrs≥1hr: 93%
As an Engineer - crew member of one of the first Mars colonies - you are responsible for repairing and maintaining Mars Rovers. In this advanced simulator you will learn the internal details of various Mars Rovers and their components.
Why similar: Space Sim 38.3% ★, Space 34.3%, Simulation 27.4%
- #45 Astrox Imperium
70% matchVery Positive85% of 1,210 reviews2019
Dev: Jace Masula
Windows
Median: 4.2 hrsMean: 16.4 hrs≥1hr: 67%
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 43.7%, Space Sim 33.6% ★, Simulation 22.7%
- #46 Jumpdrive
72% matchMostly Negative39% of 164 reviews2018
Dev: Meteoric Games
Windows
Jumpdrive is a sandbox space sim set in an alternative future heavily inspired by classic 80s sci-fi. Fight, trade and explore in a massive procedurally generated galaxy of millions of planets and stars. Amass money and power and upgrade and purchase new ships.
Why similar: Space 55.1%, Simulation 44.9%
- #47 Solar System
71% matchMixed44% of 55 reviews2017
Dev: RewindApp
Windows
Median: 24 minMean: 8.0 hrs≥1hr: 44%
Rediscover the solar system! Solar System is a relaxing game, which will allow you to deepen your knowledge of the Solar System by interacting with the planets!
- #48 Ascent - The Space Game
70% matchMixed68% of 340 reviews2016
Dev: Fluffy Kitten Studios
Windows
Median: 12 minMean: 18.1 hrs≥1hr: 38%
Ascent is a PVE sandbox space MMO with 270 BILLION star systems and an emphasis on strong Sci Fi. It encourages Exploration, Colonization, Research, Asteroid mining, Farming, Trading, and Combat. Outside the tutorial sector, everything in-game has been built by players.
Why similar: Space 61.4%, Simulation 38.6%
- #49 Titans of Space PLUS
68% matchVery Positive94% of 192 reviews2019
Dev: DrashVR LLC
Windows
Just how big is big? Journey through this holographic Solar System, and then squint your eyes in the intense light of a few of the largest known stars. Enjoy various accidentally-educational activities along the way. Great care has been taken to ensure a comfortable VR experience. VR optional.
Why similar: Space 51.4%, Simulation 48.6%
- #50 Planet Miner
69% matchVery Positive80% of 61 reviews2021
Dev: Cherniukh Andrii
Windows
Remove fog, look for and mine minerals, construct buildings, upgrade the rover and reach the portal.
Why similar: Space Sim 46.2% ★, Simulation 37.6%, Space 16.2%
- #51 NEBULOUS: Fleet Command
66% matchVery Positive81% of 3,819 reviews2022
Dev: Eridanus IndustriesPub: Hooded Horse
Windows
Median: 4.9 hrsMean: 30.4 hrs≥1hr: 77%
Take command of your hand-tailored fleet of space warships and use realistic radar, electronic warfare, advanced movement controls in 3D space, and precision targeting to outmaneuver and outwit your opponents in a simulation-heavy tactical space game like no other.
Why similar: Simulation 100%
- #52 Juno: New Origins
65% matchVery Positive89% of 3,369 reviews2023
Dev: Jundroo, LLC
Windows · Mac
Median: 1.0 hrsMean: 12.8 hrs≥1hr: 51%
Bring to life anything you can imagine from rockets and airplanes to cars and more. Automate them with a visual programming language. Explore 3D planets and make your own. Share your creations online. Complete contracts, conquer milestones, and unlock technology in the newly added Career Mode.
Why similar: Space Sim 60.5% ★, Space 39.5%
- #53 Starship EVO
67% matchVery Positive84% of 1,210 reviews2020
Dev: Moonfire Entertainment
Windows
Median: 1.3 hrsMean: 5.8 hrs≥1hr: 55%
Mine and craft your way to orbit, build your own starship and explore a vast, dangerous galaxy alongside your crew. For players who love a meaningful survival progression, a unique and elegant building system, and epic space-opera scale.
Why similar: Space 41.1%, Simulation 32%, Space Sim 27% ★
- #54 Take On Mars
69% matchMixed55% of 2,023 reviews2017
Dev: Bohemia Interactive
Windows
Median: 3.0 hrsMean: 10.5 hrs≥1hr: 87%
Take On Mars places you right in the middle of mankind’s most exciting undertaking. Start out in the seat of a rover operator, finish as the first human to have ever set foot on the Red Planet.
Why similar: Space 40.2%, Simulation 32.1%, Space Sim 27.7% ★
- #55 Infinitum
68% matchMixed81% of 312 reviews2017
Dev: VGstudio
Windows
Median: 4.6 hrsMean: 6.0 hrs≥1hr: 98%
Travel through space. Attend the planets. Gather resources. Find artifacts.
Why similar: Simulation 58.5%, Space 41.5%
- #56 Astronaut Simulator
69% matchMixed63% of 59 reviews2015
Dev: Astrosimer
Windows
Experience zero gravity flight from the astronaut helmet perspective in this unique flight simulator. Ever wanted to know what it would be like to be an astronaut? Now you can find out.
Why similar: Simulation 100%
- #57 Cosmic Drift
62% matchVery Positive97% of 74 reviews2025
Dev: Shakawah
Windows
Launch rockets into orbit around planets, find a good trajectory, and take risks to increase your score! Play solo, online, or even on Twitch!
Why similar: Space 38.9%, Space Sim 35.6% ★, Simulation 25.5%
- #58 Inspiral: Echoes of Gravity
63% matchMostly Positive80% of 54 reviews2025
Dev: PcZ Games
Windows · Mac
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 39.4% ★, Space 36.8%, Simulation 23.8%