- #1 Kerbal Space Program
97% matchOverwhelmingly Positive95% of 140,132 reviews2015
Dev: SquadPub: Private Division
Windows · Mac · Linux
Median: 5.4 hrsMean: 65.6 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 22.6%, Science 21.9%, Space Sim 19.4%, Physics 14.2%, Sandbox 12.9%
- #2 SimpleRockets
96% matchVery Positive85% of 365 reviews2015
Dev: Jundroo, LLC
Windows · Mac
Median: 5.4 hrsMean: 6.6 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 31.2%, Physics 21.4%, Sandbox 17.7%, Space 13.3%, Simulation 12.4%
- #3 Orbital Trajectory
96% matchNo user reviews2026
Dev: ElastiCat
Windows
Plan, launch, and observe in a minimalist physics puzzle game about discovering trajectories through gravity fields and orbital currents.
Why similar: Logic 21.8%, Physics 17.5%, Science 15.8%, Minimalist 12.8%, Space 11.2%
- #4 Orbital Mechanic
95% matchNo user reviews
Dev: Epicycle Interactive LLC
Windows
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 22.1%, Space Sim 19.4%, Physics 18.5%, Simulation 12.4%, Minimalist 9.8%
- #5 Spaceflight Simulator
94% matchOverwhelmingly Positive97% of 8,910 reviews2022
Dev: Team Curiosity ✦
Windows · Mac
Median: 5.3 hrsMean: 14.8 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 27.2%, Science 21%, Space 18.6%, Sandbox 14.8%, Physics 7.3%
- #6 One Degree Off
93% matchNo user reviews
Dev: Neutrino Interactive
Windows
One Degree Off is a 2D puzzle game that turns laser physics into captivating brain teasers. Master reflection and refraction to guide multiple lasers through intricate levels, Mix and split colors and, Control your beam's intensity to reach your goals.
Why similar: Science 23.2%, Physics 20%, Logic 14.1%, Simulation 11.8%, Puzzle 10.8%
- #7 Ecocoru : Euclidean Constructions -- Compass & Ruler
92% match4 user reviews100% of 4 reviews2022
Dev: Sergey Krasnikov
Windows
Ecocoru is a puzzle game where you have to solve compass and ruler construction problems.
Why similar: Science 34.1%, Logic 24.9%, Minimalist 17.2%, Puzzle 10.1%, Simulation 8.7%
- #8 Soyuz Constructors
91% 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 22.3%, Space Sim 20.7%, Space 15.6%, Physics 14%, Simulation 10.8%
- #9 Solar Expanse - Space Exploration Manager
89% matchVery Positive87% of 889 reviews2026
Dev: SpaceOpsPub: Games Operators
Windows
Median: 4.9 hrsMean: 11.1 hrs≥1hr: 79%
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 24.4%, Space Sim 19.8%, Space 18.1%, Physics 14.4%, Sandbox 12%
- #10 Laser Attraction
90% matchVery Positive90% of 60 reviews2021
Dev: Vectmatica
Windows
Play with lasers and solve puzzles in Laser Attraction. Use reflection, refraction, dispersion and filtration to direct the laser beams, mix and separate colours, open doors, hit targets and complete puzzles.
Why similar: Science 28.1%, Physics 20.7%, Logic 13.7%, Minimalist 12.9%, Puzzle 9.1%
- #11 Galaxy Engine
89% matchPositive93% of 14 reviews2025
Dev: Narcis Calin
Windows · Linux
Simulate the physics of the Universe on a large scale and create stunning visuals. Play with intergalactic interactions, smash planets together and even create the Big Bang itself!
Why similar: Space Sim 25.4%, Space 21.5%, Physics 18.3%, Sandbox 17.1%, Simulation 13.1%
- #12 Kepler Project
88% 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 30.4%, Space 26.6%, Science 20%, Simulation 11%, Physics 10.6%
- #13 Space Crash Simulator
87% match8 user reviews88% of 8 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 33%, Space 20.3%, Physics 16.9%, Sandbox 12.9%, Science 8%
- #14 Neutrino
86% match7 user reviews100% of 7 reviews2022
Dev: Mario Brandao
Windows · Mac · Linux
Neutrino, The Mission - a minimalist game where a photon seeks the core of Neutrinos Kingdom, find out why they have mass and destroy them!
Why similar: Science 25.9%, Logic 19.6%, Space 18%, Minimalist 16.2%, Physics 9.7%
- #15 Unknot!
85% matchPositive91% of 33 reviews2025
Dev: P.F.J.
Windows · Mac
Unknot! is a physics-simulation puzzle game where you unknot knots with simple controls, based on knot theory. Blending art, puzzles, and math, it delivers a unique experience—whether you’re a casual player or a hardcore puzzle enthusiast.
Why similar: Science 25.4%, Physics 20.9%, Logic 18.9%, Minimalist 16.6%, Simulation 8.9%
- #16 Voyager 2
86% match7 user reviews100% of 7 reviews2023
Dev: Rumor Games
Windows · Mac · Linux
Launch the Voyager space probe to the furthest depths of the Solar System! Use gravity to slingshot around planets and scan, orbit, or land on targets to earn stunning replays of your accomplishments.
Why similar: Science 22.7%, Space Sim 19.2%, Space 16.9%, Physics 14.3%, Logic 12.4%
- #17 Sputnika Game
84% matchVery Positive90% of 629 reviews2024
Dev: egunan
Windows
A Cosmic twist on a Suika-style game with space gravity. Help our little friend Sputnik on his journey to become the Sun.
Why similar: Space Sim 30.3%, Minimalist 13.2%, Logic 13.1%, Space 11.6%, Strategy 9.5%
- #18 MOVING WITH THE MOON: Mastering Universal Gravitation!
84% 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 30.4%, Space Sim 26%, Space 21.3%, Physics 12.6%, Score Attack 6%
- #19 Orbit One
83% matchNo user reviews2026
Dev: Specific Impulse Interactive
Windows
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 34.7%, Space 20.5%, Physics 20.1%, Simulation 14.4%, Strategy 8.5%
- #20 A Hole In Space
82% matchMostly Positive79% of 29 reviews2021
Dev: Clever AIPub: Hoi 4 ED
Windows · Mac
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 38.6%, Space 23.8%, Physics 13.9%, Simulation 11.9%, Sandbox 9.8%
- #21 Constellations: Beyond the edges
81% matchNo user reviews2028
Dev: Hanoi Studios
Windows · Mac · Linux
After an accident at a space station, you lose all communication with the earth and are no longer able to locate yourself in space, your best chance of returning is to use the space monitoring system to identify known constellations and configure the route back home.
Why similar: Science 31.4%, Space 22%, Logic 20.4%, Minimalist 12.6%, Puzzle 8.5%
- #22 Gravity Game
80% matchMostly Positive79% of 14 reviews2025
Dev: SGS
Windows
Gravity Game is a puzzle-style infinite physics simulation. You are tasked with escaping your home planet, and reaching the goal at another! This game uses real Newtonian Physics in a simple 2D simulation, as a way to help people visually understand the mechanics.
Why similar: Science 20.6%, Space 17.8%, Space Sim 16.4%, Minimalist 13.1%, Physics 11.7%
- #23 Satellite Command
82% matchMixed64% of 81 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: Science 23.8%, Space Sim 21.5%, Space 16.4%, Physics 13.7%, Sandbox 12.4%
- #24 Search
81% match5 user reviews80% of 5 reviews2023
Dev: Ahmad R.H.
Windows
The existence of all mankind is under threat. You are the only hope!
Why similar: Space Sim 27.4%, Science 25.5%, Space 23.1%, Physics 12.5%, Simulation 10.3%
- #25 Launch Director
79% matchMostly Positive79% of 14 reviews2023
Dev: TiJayFLY
Windows
A walking simulator where you can launch rockets! Become the Launch Director for a commercial space transportation company. Can you configure these reusable rockets for a successful launch, ascent and landing?
Why similar: Science 29.4%, Space Sim 24.2%, Space 18.8%, Physics 16.4%, Logic 7.1%
- #26 The Earth Sucks
79% matchNo user reviews
Dev: Insert Developer NamePub: Great North Gorilla
Windows
A casual space simulation game where you perform orbital manoeuvres on satellites to change their orbit and complete missions.
Why similar: Space Sim 34.9%, Physics 23.8%, Space 20.3%, Simulation 15.8%, 2D 4.2%
- #27 Rocket Science
78% matchVery Positive81% of 170 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 24%, Space Sim 21.6%, Space 17.7%, Physics 14.7%, Sandbox 12.5%
- #28 Kerbal Space Program 2
77% matchMostly Negative26% of 31,639 reviews2023
Dev: Intercept GamesPub: Private Division
Windows
Median: 7.7 hrsMean: 19.3 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 26.5%, Space Sim 19.7%, Space 18.2%, Physics 15.5%, Sandbox 13.2%
- #29 Children of a Dead Earth
78% matchVery Positive90% of 914 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: Science 28.5%, Space 27.9%, Space Sim 15.3%, Simulation 12.3%, Strategy 8.8%
- #30 Aptamirror
76% matchNo user reviews2026
Dev: Stellar Genesis Games
Windows
Aptamirror is a meditative physics-based puzzle game inspired by molecular biology. Manipulate RNA strands by grabbing, mutating, cleaving, and ligating to match increasingly complex target structures. Challenge yourself with 50 handcrafted puzzles designed by a PhD Biochemist. Think. Fold. Repeat.
Why similar: Science 29.2%, Logic 17.1%, Physics 16.6%, Space 15.3%, Puzzle 7.3%
- #31 Paper - A Game of Folding
77% match9 user reviews89% of 9 reviews2019
Dev: Bryce Summer
Windows
An origami puzzle game suitable for all ages! Fold simulated paper to match the target... You're given a score based on how accurate you are.
Why similar: Minimalist 23.9%, Logic 23.4%, Physics 23.2%, Puzzle 11.8%, Sandbox 8.5%
- #32 Space Thrusters
76% matchNo user reviews
Dev: CrystalDam Studios
Windows
Space Thrusters is a physics puzzle game where you plan the perfect route through enemy ship vents. Guide a bomb through tight spaces to trigger satisfying, cinematic explosions! The stakes are high: you must visualize your exit before you enter. Unravel the secrets of space-one detonation at a time
Why similar: Logic 26.7%, Space 22.3%, Physics 21.5%, Puzzle 10.7%, Strategy 7.8%
- #33 Universe Sandbox
75% matchOverwhelmingly Positive96% of 31,154 reviews2015
Dev: Giant Army
Windows · Mac
Median: 2.3 hrsMean: 23.7 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 Sim 23%, Science 21.6%, Space 18.3%, Physics 14.4%, Sandbox 14.4%
- #34 RemoteSpace: First Settlement
75% matchNo user reviews
Dev: ShadowDev
Windows
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 28.6%, Science 20.8%, Physics 13.8%, Space 13.2%, Sandbox 9.4%
- #35 Planetris
73% match7 user reviews86% of 7 reviews2025
Dev: Milky Fox
Windows
A challenging Suika-like with no ground and an end
Why similar: Physics 22.2%, Minimalist 20%, Space 16.1%, Logic 11.1%, Puzzle 9.8%
- #36 Reflect
74% match6 user reviews100% of 7 reviews2024
Dev: Zebra Games
Windows
This is a simple and complex puzzle game about light. You need to use Optical components to direct lights and lit up the rings.
Why similar: Minimalist 18.3%, Physics 17.9%, Science 16.7%, Logic 16%, Puzzle 10.4%
- #37 GravBoost
73% match4 user reviews100% of 4 reviews2026
Dev: Emergent Dynamics Studio
Windows
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 33.7%, Physics 24.2%, Space 15.2%, Simulation 11.7%, Minimalist 10.9%
- #38 Orbital Express
73% matchNo user reviews
Dev: Igor Trnka
Windows
Build and manage your own space company. Design missions, launch satellites, and expand your influence across Earth’s orbit.
Why similar: Space Sim 28.4%, Science 16%, Sandbox 15.8%, Simulation 12.6%, Space 11.4%
- #39 n-body VR
74% match1 user reviews100% of 1 reviews2017
Dev: Idellio
Windows
Based on true Newtonian Physics, n-body VR immerses you in a deep space, 4D playground of sight and sound with your HTC Vive. This unique new experience promises to be fun and interesting to generations of space-time enthusiasts.
Why similar: Science 33.7%, Space 21.9%, Simulation 21.7%, Physics 19.6%, Indie 3.1%
- #40 Colorgrid
72% matchVery Positive92% of 155 reviews2019
Dev: Minimol Games
Windows · Mac
Colorgrid is a puzzle game about mixing colors in a Lab. Find the correct positions for your lasers and mirrors to get the right mix of colors in each material.
Why similar: Science 23.1%, Physics 17.9%, Logic 16.5%, Minimalist 14.5%, Space 12.9%
- #41 Final Orbit
71% 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 22.1%, Space 19.7%, Science 17.4%, Sandbox 16.2%, Physics 11.5%
- #42 Spaceport Crew
71% matchNo user reviews
Dev: ImageTech LLC
Windows · Mac · Linux
Fuel and fix ships as fast as you can in this Simulation Time Management game.
Why similar: Space Sim 29.9%, Space 22.6%, Physics 14.5%, Simulation 13.4%, Logic 10%
- #43 Futuclass Education
72% matchPositive80% of 10 reviews2021
Dev: Futuclass
Windows
** 10 Chemistry and 1 Physics VR Modules – Available for $7.99 Each! ** Learn STEM through gamified experiences in VR! Co-created with award-winning science teachers, tested with students in classroom and at home.
Why similar: Science 26.7%, Physics 18%, Logic 16.3%, Sandbox 13.8%, Simulation 8.3%
- #44 Gravitation
71% matchNo user reviews
Dev: GoldenEggs Workshop
Windows
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 32.2%, Sandbox 15.3%, Simulation 13.7%, Space 13.2%, Physics 11.2%
- #45 Marble Computing
70% matchPositive86% of 21 reviews2021
Dev: Mt.Zero Software
Windows · Linux
Using only marbles and gravity, solve logic problems in surprising ways!
Why similar: Logic 31.6%, Sandbox 20.3%, Minimalist 15.4%, Simulation 13.7%, Puzzle 12.8%
- #46 That Rocket Game
69% matchPositive85% of 26 reviews2023
Dev: Dan's Games
Windows
That Rocket Game is the ultimate space themed relaxing arcade game. Upgrade your rocket to reach further into the unknown...
Why similar: Science 35.6%, Space 28.5%, Minimalist 13.8%, Physics 11.3%, Simulation 5.9%
- #47 In Space No One Can Hear You Clean
70% match2 user reviews100% of 2 reviews2021
Dev: TriPaw Games
Windows
Velocity-driven arcade action!
Why similar: Space Sim 29.4%, Space 21.5%, Physics 16.1%, Score Attack 15%, Minimalist 14.3%
- #48 Slingshot: Escape the solar system
69% matchNo user reviews2026
Dev: indiega.me
Windows · Mac · Linux
Launch. Slingshot. Crash. Repeat. Slingshot is a pixel-art orbital mechanics arcade about gravity, fuel, and perfect timing. Chain flybys across eight planets, reach escape velocity, and tune in to Spacify : 12 destinations, 12 soundtracks, 100+ achievements.
Why similar: Space Sim 39%, Space 27.3%, Physics 24.5%, 2D 5.1%, Indie 4.2%
- #49 Spaceflight Simulator 2
68% 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 19.4%, Space 15.1%, Sandbox 14.3%, Physics 11.1%
- #50 Cosmic Composer
68% matchNo user reviews2026
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 28.3%, Science 19.8%, Space Sim 19.5%, Sandbox 18.6%, Puzzle 9.6%
- #51 Gravity Shot
70% match9 user reviews90% of 10 reviews2016
Dev: Intrepid Marmot
Windows · Mac
Median: 3.3 hrsMean: 4.7 hrs≥1hr: 75%
Sling shot explosive nuclear warheads into collision course with your planetary assassination targets. Using the gravitation of a planet against itself, while navigating your payload around asteroids, moons and even Black Holes for devastating effect!
Why similar: Space Sim 31.4%, Space 24.9%, Physics 23.8%, Puzzle 10.4%, Simulation 6.8%
- #52 Launch Ball
67% match2 user reviews50% of 2 reviews2024
Dev: LabPuz Games
Windows
Launch Ball: Position your cannon and skillfully launch the ball to hit the box in this precise and engaging physics-based puzzle game.
Why similar: Minimalist 25.1%, Physics 24.8%, Logic 24.4%, Puzzle 12.4%, Strategy 7.2%
- #53 Space Simulation Toolkit
68% matchVery Positive81% of 484 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: Physics 23.6%, Space Sim 22.6%, Sandbox 19.8%, Space 15.8%, Simulation 12.5%
- #54 Space Station Continuum
69% matchNegative15% of 39 reviews2020
Dev: N-Body Solutions
Windows
Space Station Continuum is a building & management sim inspired by the past, present, and future of humans in space.
Why similar: Science 23.8%, Space Sim 22%, Space 16.5%, Physics 13.1%, Sandbox 11.7%
- #55 9.8
67% matchNo user reviews2027
Dev: Tremoço Games
Windows
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 24.5%, Space Sim 22.3%, Physics 19.1%, Simulation 13.4%, Sandbox 12.3%
- #56 Orbit Crisis
67% matchNo user reviews2026
Dev: Serious Hallucinations
Windows · Mac
Master orbital navigation to protect Earth in this atmospheric space simulation, where careful timing, experimentation, and patience matter more than quick reactions.
Why similar: Space Sim 31.3%, Space 25.1%, Physics 20.6%, Minimalist 9.4%, Simulation 6.9%
- #57 ΔV: Rings of Saturn
65% matchVery Positive93% of 3,342 reviews2023
Dev: Kodera Software
Windows · Mac · Linux
Median: 8.3 hrsMean: 11.6 hrs≥1hr: 84%
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 22.9%, Science 22.7%, Space 20.5%, Physics 16.3%, Sandbox 8.9%
- #58 Rionag: Survey Fleet
66% match1 user reviews0% of 1 reviews2024
Dev: Reul Games
Windows · Linux
Rionag: Survey Fleet is a top-down starship builder and logistics game where it's your job to balance the needs of the crews with cutting-edge equipment on board. Unlock tech that adds new capabilities for your ships to go through hazardous environments, enabling you to explore new worlds.
Why similar: Space Sim 28.9%, Science 25.9%, Space 15.6%, Logic 13.5%, Simulation 6.7%