- #1 Stargazer Simulator
97% matchNo user reviews2027
Dev: TeamCosmicDawn
Windows
A first-person astronomy simulator built on real astronomical data. Set up, align, and operate your telescope as the sky changes with location, date, and time. Use star charts and bright stars to find targets, then observe the Moon, planets, and faint, distant deep-sky objects through the eyepiece.
Why similar: Space Sim 31.1%, Science 28.8%, Realistic 8.8%, Sandbox 7.4%, Space 7.1%
- #2 SpaceEngine
96% matchOverwhelmingly Positive96% of 16,682 reviews2019
Dev: Cosmographic Software
Windows
Median: 2.1 hrsMean: 43.9 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: Science 19.8%, Space Sim 18.9%, Space 12.2%, Sandbox 11.7%, Open World 9.7%
- #3 Starship Simulator
96% matchNo user reviews
Dev: Fleetyard Studios
Windows
Explore a scientifically accurate Milky Way galaxy and discover distant uncharted worlds, while having unrestricted access to every deck of your Magellan Class deep space exploration vessel. Interact with numerous fully simulated ship systems, or simply relax in the bar and watch the stars drift by.
Why similar: Space Sim 23.8%, Science 23.1%, Space 12.3%, Sandbox 9.6%, Open World 8.6%
- #4 Spaceflight Simulator
95% matchOverwhelmingly Positive97% of 9,809 reviews2022
Dev: Team Curiosity ✦
Windows · Mac
Median: 5.3 hrsMean: 15.3 hrs≥1hr: 83%
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 28.8%, Science 23.1%, Sandbox 15.7%, Space 15.2%, Exploration 6.4%
- #5 Kerbal Space Program 2
94% matchMostly Negative26% of 32,033 reviews2023
Dev: Intercept GamesPub: Private Division
Windows
Median: 7.7 hrsMean: 19.4 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: Science 26.6%, Space Sim 18.9%, Space 13.6%, Sandbox 12.6%, Open World 7.6%
- #6 Star Paws
94% matchNo user reviews
Dev: Blue Cat's Games
Windows
Star Paws is a space simulator with sandbox elements. In this game, you play as an astronaut cat. Your goal is to develop your own space program. Build a spacecraft from a variety of components and venture in search for a strange signal coming from a distant deep corner of the Solar System!
Why similar: Science 27%, Space Sim 25.2%, Space 12.7%, Sandbox 11%, Realistic 7.8%
- #7 Universe Sandbox
93% matchOverwhelmingly Positive96% of 32,344 reviews2015
Dev: Giant Army
Windows · Mac
Median: 2.3 hrsMean: 24.5 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: Science 22.7%, Space Sim 20.2%, Space 11.1%, Sandbox 10.6%, Open World 7.5%
- #8 Solar Expanse - Space Exploration Manager
91% matchVery Positive87% of 1,372 reviews2026
Dev: SpaceOpsPub: Games Operators
Windows
Median: 4.6 hrsMean: 16.0 hrs≥1hr: 75%
Explore the Solar System. Mine and drop asteroids. Colonize and terraform. Lead the space race and compete with other corporations on your way to profit. Watch the expansion of human race over the centuries.
Why similar: Science 28.1%, Space Sim 21.6%, Space 15.4%, Sandbox 13.2%, Realistic 7.2%
- #9 Curiosmos
92% matchNo user reviews
Dev: Céline & the Silly Stars
Windows · Mac
Curiosmos is a whimsical space sim where you shape your own solar system by crafting planets, gravity, atmosphere, and life! Embark on an adventure to discover the secrets of the universe in this charming ode to outer space ✶
Why similar: Wholesome 21.7%, Space Sim 16.3%, Sandbox 13.5%, Space 7.8%, Relaxing 7.7%
- #10 The Universe of Red Hope
91% matchNo user reviews
Dev: Shelby County Video Game DevelopmentPub: Mathematics Firms of Memphis
Windows
A classic fantasy MMORPG powered by uMMORPG—discover dungeons, fight powerful creatures, forge rare equipment, and shape a living world alongside hundreds of players.
Why similar: Science 32.6%, Space Sim 30.2%, Space 15.1%, Sci-fi 8%, First-Person 7%
- #11 Final Orbit
90% matchNo user reviews2026
Dev: Bad Sector
Windows
Master the cockpit of highly realistic spacecraft in this Newtonian physics based sim. Take off from surface to space, plot a course between the planets and dock with space stations. Trade commodities or take shipping contracts to buy upgrades and optimize your build - every choice matters.
Why similar: Space Sim 21.7%, Science 17.9%, Sandbox 15.8%, Space 15.3%, Open World 11.2%
- #12 Course Correction
89% matchNo user reviews
Dev: House 13 Games
Windows
Realistic space flight simulator.
Why similar: Space Sim 24.9%, Science 21.2%, Space 14.7%, Sandbox 10.4%, Realistic 8.2%
- #13 Rodina
89% matchVery Positive93% of 1,333 reviews2014
Dev: Elliptic Games
Windows
Median: 2.9 hrsMean: 6.3 hrs≥1hr: 72%
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 27.1%, Space Sim 17.4%, Open World 14.8%, Sandbox 14.6%, Exploration 11.1%
- #14 Kerbal Space Program
88% matchOverwhelmingly Positive96% of 147,368 reviews2015
Dev: SquadPub: Private Division
Windows · Mac · Linux
Median: 5.4 hrsMean: 66.3 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: Science 27.9%, Space Sim 23.6%, Space 21.4%, Sandbox 15.5%, Open World 4.9%
- #15 ΔV: Rings of Saturn
87% matchVery Positive92% of 3,475 reviews2023
Dev: Kodera Software
Windows · Mac · Linux
Median: 8.3 hrsMean: 11.8 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: Science 22.6%, Space Sim 21.8%, Space 15.2%, Sandbox 8.4%, Open World 7.7%
- #16 Baryum
86% match2 user reviews0% of 2 reviews2026
Dev: Dams-Labs
Windows
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 38%, Space 18.3%, Open World 12.1%, Exploration 7.7%, Sci-fi 7.2%
- #17 Space Tourist
85% matchPositive92% of 12 reviews2025
Dev: Grow Now!
Windows
Space Tourist is a chill, mechanic-lite, easy space exploration game designed for tired gamers who love to discover beautiful worlds without overwhelming systems or steep learning curves. Explore space. Land on new worlds. Plant flags. Take photos. Relax.
Why similar: Space Sim 21.8%, Sandbox 12.1%, Space 9%, First-Person 8.9%, Stylized 8.8%
- #18 Rocket Science
86% matchVery Positive81% of 176 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: Science 26.2%, Space Sim 22.3%, Space 14.2%, Sandbox 12.8%, Open World 7.7%
- #19 Worlds Of The Future
84% matchNo user reviews
Dev: Moonmen Games
Windows
Worlds Of The Future is a sci-fi open world, action/adventure game. Explore a fully seamless solar system full of adventures, mysteries and colorful characters. Build your space delivery company, climb the company rankings and become a legend among the worlds!
Why similar: Space Sim 30.8%, Sandbox 16.1%, Space 12.4%, Exploration 7.8%, Open World 7.8%
- #20 Wayward Cosmos
84% matchNo user reviews
Dev: Exploratory Game StudiosPub: AlchemicMage
Windows · Linux
Explore a seed-driven galaxy where every ship, planet, and dungeon is generated at runtime. Dogfight pirate wings, land on 20 kinds of worlds, raid surface sites on foot, and build a fleet from salvaged hulls, solo or in Steam co-op. The same seed rebuilds the same galaxy, every time.
Why similar: Space Sim 36.4%, Science 18%, Sandbox 14.7%, Exploration 8.6%, Space 7.9%
- #21 Cosmic Composer
83% matchNo user reviews2027
Dev: Juhani Viitanen
Windows
Casual puzzle game on a cosmic scale. Build stars, planets and other cosmic objects. Evolve your cosmos using abilities of the stars from stellar winds to supernova.
Why similar: Space 22.2%, Science 21%, Space Sim 19.6%, Sandbox 18.7%, Relaxing 4.5%
- #22 Spaceflight Simulator 2
82% matchNo user reviews
Dev: Team Curiosity ✦
Windows · Mac
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 30.9%, Science 20.6%, Sandbox 14.8%, Space 12.1%, Exploration 6.6%
- #23 RemoteSpace: First Settlement
82% matchNo user reviews
Dev: ShadowDev
Windows
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 30.3%, Science 23.2%, Space 10.8%, Sandbox 10%, Realistic 7.3%
- #24 Soyuz Constructors
81% matchNo user reviews
Dev: Pyramid Games S.A.Pub: Pyramid Lab
Windows
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: Science 27.3%, Space Sim 24.1%, Space 14.6%, Sandbox 12.5%, Exploration 6.6%
- #25 Children of a Dead Earth
81% matchVery Positive90% of 942 reviews2016
Dev: Q Switched Productions, LLC
Windows · Mac
Median: 2.2 hrsMean: 23.6 hrs≥1hr: 65%
The most scientifically accurate space warfare simulator ever made. Now with Steam Workshop!
Why similar: Science 32.1%, Space 23.2%, Space Sim 16.4%, Realistic 13%, Sci-fi 8.2%
- #26 Vyulettes
79% matchNo user reviews
Dev: Elias Urbizu
Windows
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: Science 25.4%, Space Sim 24.3%, Sandbox 11.2%, Space 8%, Open World 7.2%
- #27 Solar Systems For Kids
80% match1 user reviews0% of 1 reviews2023
Dev: SRM Games
Windows
A family friendly casual game that teaches children about celestial bodies. Learn about the Sun, Earth, Jupiter, and the other celestial bodies that make up our Solar System. You or your child will also be able to create your own Solar System in a sleek and in-depth fashion!
Why similar: Science 33.3%, Space Sim 19%, Space 17.3%, Exploration 6.5%, Realistic 5.3%
- #28 spaceXplorer
79% matchNo user reviews
Dev: Playito.com
Windows
Desktop and VR interactive space experience/game. Fan homage to SpaceX's efforts of inspiring humanity to finally become a spacefaring civilization! Experience launches, flights and landings of starships first-hand, engage with challenging mini-games, explore funny memes and more. :-)
Why similar: Science 28.2%, Space Sim 21.9%, Space 13.4%, Sandbox 13.1%, Exploration 6.9%
- #29 Funorbit
78% match2 user reviews100% of 2 reviews2026
Dev: Aeroenix
Windows
Funorbit is a space survival simulation with realistic physics, resource gathering, crafting, and building. Navigate a vast universe using orbital mechanics, encounter drifting meteoroids, and construct space stations to survive.
Why similar: Space Sim 27%, Science 22.1%, Sandbox 14.5%, Space 12.1%, Open World 8.3%
- #30 Planet Architect
78% matchNo user reviews
Dev: Devote
Windows · Mac
A planet-building sandbox where you create entire worlds from the ground up. Generate unique planets, shape vast landscapes, and use interconnected simulations inspired by real-world processes to bring your fantasy planet to life.
Why similar: Space Sim 26.9%, Science 22.8%, Sandbox 17.4%, Space 9.8%, Exploration 7.7%
- #31 Space Mechanic Simulator
77% matchMixed63% of 122 reviews2023
Dev: Atomic JellyPub: Wildlands Interactive
Windows
Median: 3.9 hrsMean: 16.6 hrs≥1hr: 84%
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 27.2%, Science 26.3%, Space 15.3%, Realistic 7.6%, Sci-fi 6.1%
- #32 Space Travellers
77% matchNo user reviews
Dev: Lonely Man
Windows
Space Travellers is a unique open-world sandbox space simulator set in the year 2343. Travel the galaxy, trade, explore unexplored worlds, fight, build bases and factories, forge alliances and experience new adventures!
Why similar: Space Sim 31.4%, Space 15.8%, Sandbox 13.2%, Open World 10.3%, Realistic 8.4%
- #33 C-Beams
76% matchNo user reviews
Dev: Distant Light GamesPub: Hooded Horse
Windows
Pilot your ship through a perilous black hole system in this Space Action RPG. Engage in advanced ship combat, haul rare elements, and upgrade your vessel to survive. Stunning visuals, a deep narrative, and a rewarding progression system await as you uncover the abyss's dark secrets.
Why similar: Space Sim 24.7%, Science 24.2%, Space 13.9%, Sandbox 12.7%, Open World 9%
- #34 Terra Logic
76% matchNo user reviews2027
Dev: Cyborg V
Windows
Sculpt planets and landscapes, watch water and climate respond, and compare two versions of the same world. Import heightmaps, draw mountain ranges, and export flat terrain to Minecraft Java. Explore Earth, ancient continents and distant worlds at your own pace.
Why similar: Science 31.5%, Sandbox 17.6%, Space 13%, Space Sim 10.7%, Open World 8.8%
- #35 Kepler Project
75% matchNo user reviews
Dev: Kepler Project
Windows · Linux
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 36%, Science 24.9%, Space 24.5%, Exploration 10.3%, 3D 2.8%
- #36 MOVING WITH THE MOON: Mastering Universal Gravitation!
75% matchNo user reviews2026
Dev: Wada System Limited
Windows
This is a new action game where you steer the earth. Steer the Earth, when both the Earth and the Moon are in the goal zone, the stage is cleared. Stars are constantly pulling on each other with universal gravitation. You can experience a simulated universal gravitation.
Why similar: Science 37.1%, Space Sim 30.2%, Space 19.3%, Sci-fi 6.7%, Casual 5.8%
- #37 Void Ledger
74% matchNo user reviews2027
Dev: Hidden Universe Games
Windows
You find yourself in a distant galaxy full of merchants, diplomats, bandits and powerful factions. Explore unknown galaxies, trade, fight pirates or become one. Uncover mysteries and shape the universe!
Why similar: Space Sim 41.8%, Sandbox 20.7%, Exploration 12%, Space 7.9%, Open World 7.8%
- #38 Black Hole Simulator
74% matchVery Positive82% of 154 reviews2021
Dev: PanGuoJun
Windows
A simple black hole simulator.
Why similar: Space Sim 28.1%, Science 22.8%, Sandbox 14.2%, Realistic 8%, Relaxing 5.8%
- #39 Space Crash Simulator
72% matchPositive84% of 25 reviews2025
Dev: WPC
Windows · Mac
Real-time planetary collision sandbox powered by SPH physics: smash planets together and watch the destruction and its aftermath!
Why similar: Space Sim 40.2%, Space 19.2%, Sandbox 15.7%, Science 10.2%, Casual 3.6%
- #40 Project Coreward
73% match5 user reviews100% of 5 reviews2024
Dev: ExoElement Games
Windows
Embark on an open world journey across the stars while encountering foes, friends and forgotten stories. Build your ship. Recruit and train your crew. Most of all, explore and confront the unknown to reveal the true, vast nature of choice and consequence.
Why similar: Space Sim 28.5%, Science 21.5%, Sandbox 15%, Space 9.4%, Exploration 7.3%
- #41 ROVA
71% matchPositive96% of 23 reviews2026
Dev: FreeRangeDevs
Windows
ROVA is a cozy space-rover photography game. Help a new space colony conduct research on large spherical planets, by documenting elements of alien worlds through photography. ROVA is a game about discovery and exploration.
Why similar: Space Sim 27.9%, Space 16%, Sandbox 15.9%, Exploration 8.5%, Open World 7.8%
- #42 Elite Dangerous
73% matchMostly Positive77% of 107,797 reviews2015
Dev: Frontier Developments
Windows
Median: 18.3 hrsMean: 149.0 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 39.5%, Space 20.7%, Open World 12.7%, Exploration 7.4%, Sci-fi 7.3%
- #43 Celestarium
72% matchNo user reviews
Dev: Celestarium Dev
Windows · Mac · Linux
Celestarium, an astronomy game where you start as an amateur astronomer. Discover and map planets, sell data to corporates, improve your gear, start your own space agency, manage your own missions, build and fly rockets to discovered bodies. Explore, prosper and expand your presence in space.
Why similar: Science 29%, Space Sim 19.4%, Space 17.9%, Realistic 8.6%, Exploration 8.4%
- #44 Rocket Engineer
70% matchPositive89% of 19 reviews2026
Dev: Xavier B.
Windows
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 30.1%, Science 24.9%, Sandbox 16.2%, Space 11.6%, Exploration 7.7%
- #45 9.8
71% matchNo user reviews2027
Dev: Tremoço Games
Windows · Mac
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 30.8%, Science 23.9%, Space 15.1%, Sandbox 14.7%, Exploration 6.5%
- #46 SkyRig
71% matchNo user reviews
Dev: Rocket Flair StudiosPub: Astra Logical
Windows
Build floating automated rigs in a volatile gas giant. Extract elements, synthesize compounds, and descend through atmospheric layers in this sci-fi systems-builder focused on chemistry, engineering, and survival.
Why similar: Science 31.1%, Space Sim 19.3%, Space 14.2%, Sandbox 12.4%, Sci-fi 5.9%
- #47 Enter The Moon
73% match6 user reviews67% of 6 reviews2018
Dev: Paul SobkowiakPub: LPS-Interactive
Windows
Space simulation moon game. Explore the moon, mars, venus and mercury in breathtaking real-time 3D. Explore their geological aspects. Battle against spaceships or a secret lunar base. Enter the ISS. Measure the moon. And get in the cockpit.
Why similar: Space Sim 30.6%, Science 25.9%, Space 15.6%, Sci-fi 7.1%, Open World 6.7%
- #48 Huntian: StarTrace
70% matchNo user reviews
Dev: INSIGNE
Windows
Rebuild civilization from the first flame! As last pioneer, 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 25.7%, Sandbox 21.1%, Space 18.7%, Open World 12.4%, Exploration 7.9%
- #49 Planet Genesis 2
69% match3 user reviews100% of 3 reviews2026
Dev: Raptor Claw
Windows
Design your own solar systems and enjoy watching them orbit, collide and smash each other in a cosmic dance!
Why similar: Science 33.4%, Space Sim 21.4%, Sandbox 16.4%, Space 12.5%, Open World 7.1%
- #50 Keplerian Space Discovery
68% matchNo user reviews88% of 25 reviews2026
Dev: Kugelblitz
Windows
Travel through the solar system in your own spaceship! The motion of each celestial body is accurately reproduced by the Kepler equation.
Why similar: Science 33.9%, Space Sim 26.2%, Space 17.9%, Open World 9.4%, Realistic 4.5%
- #51 Astro VR
69% matchPositive100% of 21 reviews2024
Dev: Light-Year Simulations, LLC
Windows
Explore the real Solar System and thousands of star systems. Watch Phobos dash through the Martian sky or observe a sunset on a planet with multiple suns. Accelerate time, compare planet sizes, and visit scientifically grounded stars and exoplanets—in VR or on desktop.
Why similar: Science 35.2%, Space Sim 22.6%, Space 15.9%, Exploration 9.3%, Realistic 6%
- #52 Celestia
68% matchPositive81% of 21 reviews2026
Dev: Celestia Development Team
Windows
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 38%, Science 27.6%, Space 12.3%, Exploration 9.3%, Open World 7%
- #53 Meco Rocket Simulator
68% matchPositive82% of 17 reviews2025
Dev: Loren Aerospace
Windows · Mac
A rocket engine design sim with real physics. Wire pumps, injectors and nozzles on a node graph, set the numbers, and test fire. Live graphs and 3D hardware answer every change. Fourteen guided missions with a senior engineer, or free build. Recreate the Merlin 1D, or build one that shouldn't work.
Why similar: Space Sim 28.5%, Science 28%, Sandbox 14.1%, Space 13.7%, Realistic 8.5%
- #54 Astrox Imperium
70% matchVery Positive84% of 1,264 reviews2019
Dev: Jace Masula
Windows
Median: 4.2 hrsMean: 16.1 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 Sim 32.1%, Space 30.2%, Sandbox 16%, Open World 11.1%, Sci-fi 5.4%
- #55 Abyss Drifter
69% matchNo user reviews
Dev: VetusCorvum
Windows
A first-person space courier sim. Haul cargo between planets and stations, fuel and repair your ship by hand, and navigate by instruments through a forgotten star system where nobody is coming to help.
Why similar: Space Sim 29.7%, Science 20.1%, Space 12.9%, Exploration 6.7%, Realistic 6.1%
- #56 Inspiral: Echoes of Gravity
67% matchMostly Positive73% of 67 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 28.4%, Space 19.3%, Sandbox 15.2%, Relaxing 8.6%, Exploration 6.2%
- #57 Space Engineers 2
66% matchMostly Positive75% of 5,654 reviews2025
Dev: Keen Software House
Windows
Median: 2.0 hrsMean: 11.6 hrs≥1hr: 64%
Space Engineers 2 is a playable Early Access Alpha sandbox focused on engineering, exploration, and colonization in a fully destructible universe. Design and build ships, stations, and planetary bases while uncovering the story of Miro and Ivan Sokol. Help shape the future of the Almagest system.
Why similar: Science 23.8%, Space Sim 18.3%, Space 14.2%, Sandbox 14.1%, Open World 9%
- #58 Terraspace
66% match8 user reviews38% of 8 reviews2025
Dev: Black Apple
Windows
The game "Terraspace" offers you a unique experience of planet settlement and terraforming — creating conditions for life on unsuitable planets. This will require you to build the necessary structures to populate the planet.
Why similar: Space Sim 29%, Science 17.7%, Sandbox 14.4%, Space 10.1%, Stylized 6.1%
- #59 Starscrip
67% matchNo user reviews2027
Dev: boomthump
Windows
The top-down space sim. Fly, trade, and fight in a galaxy shaped by simulated history, where production, freight, and war reshape a living economy.
Why similar: Space Sim 39.3%, Space 19.1%, Open World 12.6%, Sandbox 10.2%, Sci-fi 8.2%
- #60 Reentry - A Space Flight Simulator
64% matchOverwhelmingly Positive97% of 1,372 reviews2025
Dev: Lyra Creative
Windows
Median: 2.2 hrsMean: 6.7 hrs≥1hr: 72%
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 27.7%, Science 25.9%, Space 16.4%, Open World 9.6%, Realistic 8.3%