- #1 Kerbal Space Program
97% 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: Space 22.8%, Science 22%, Space Sim 19.5%, Physics 14%, Sandbox 12.8%
- #2 SimpleRockets
96% matchVery Positive86% of 366 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 31.3%, Physics 21%, Sandbox 17.5%, Space 14%, Simulation 12.1%
- #3 Orbital Trajectory
96% matchNo user reviews
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 21.9%, Physics 17.2%, Science 15.8%, Minimalist 12.8%, Space 11.3%
- #4 PLANETOON
95% matchNo user reviews2026
Dev: TOBON GAME
Windows · Mac
A space puzzle game where you create galaxies. Discover cosmic surprises and over 60 endings. Complete the ending collection to unlock Endless Mode, and see how far your own galaxy can grow.
Why similar: Space 17.6%, Physics 16.5%, Sandbox 11.2%, Space Sim 10.5%, Minimalist 10.1%
- #5 Orbital Mechanic
94% 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 22.4%, Space Sim 19.5%, Physics 18.2%, Simulation 12.2%, Minimalist 9.8%
- #6 Spaceflight Simulator
93% 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 27.5%, Science 21%, Space 18.7%, Sandbox 14.9%, Physics 7.2%
- #7 One Degree Off
92% match3 user reviews100% of 3 reviews2026
Dev: Neutrino Interactive
Windows · Mac · Linux
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 23.4%, Physics 20.3%, Logic 14.3%, Simulation 11.3%, Puzzle 11.3%
- #8 Rocket Engineer
91% 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 24.1%, Science 19%, Logic 14.1%, Sandbox 12.8%, Space 12%
- #9 Ecocoru : Euclidean Constructions -- Compass & Ruler
91% 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 34.2%, Logic 24.9%, Minimalist 17.2%, Puzzle 10.2%, Simulation 8.5%
- #10 Soyuz Constructors
90% 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 22.4%, Space Sim 20.7%, Space 16.2%, Physics 13.7%, Sandbox 10.7%
- #11 Solar Expanse - Space Exploration Manager
89% 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 24.6%, Space Sim 19.9%, Space 18.2%, Physics 14%, Sandbox 12.1%
- #12 Stargazer Simulator
89% 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 32.7%, Science 29%, Physics 14.1%, Space 9.7%, Sandbox 7.7%
- #13 Laser Attraction
88% 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 28.3%, Physics 20.4%, Logic 13.8%, Minimalist 12.9%, Puzzle 9.3%
- #14 Kepler Project
87% 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 30.5%, Space 26.9%, Science 20.1%, Simulation 10.8%, Physics 10.4%
- #15 Galaxy Engine
86% matchPositive88% of 16 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 25.6%, Space 21.8%, Physics 18.1%, Sandbox 17.1%, Simulation 12.9%
- #16 Space Crash Simulator
85% 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 33.1%, Space 20.5%, Physics 16.7%, Sandbox 12.9%, Science 8%
- #17 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 9.5%
- #18 In Control: Rocketry
84% matchNo user reviews
Dev: Electromechanical SoftworksPub: Maximum Entertainment France SAS
Windows
Take to the skies in this spaceflight simulator where you have control over every aspect of your orbital journey. Build a rocket and its control panels, steer your spacecraft to stay on its flight path, manage resources and explore the solar system using realistic physics and propulsion systems.
Why similar: Space Sim 26.8%, Space 21.5%, Physics 14.2%, Science 13.5%, Sandbox 12.8%
- #19 Unknot!
83% 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 25.6%, Physics 20.6%, Logic 19%, Minimalist 16.7%, Simulation 8.8%
- #20 Voyager 2
84% 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 22.8%, Space Sim 19.2%, Space 17%, Physics 14.1%, Logic 12.5%
- #21 Orbit One
82% match4 user reviews75% of 4 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 35%, Space 20.8%, Physics 19.9%, Simulation 14.1%, Strategy 8.4%
- #22 MOVING WITH THE MOON: Mastering Universal Gravitation!
82% 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 30.5%, Space Sim 26%, Space 21.5%, Physics 12.4%, Score Attack 5.9%
- #23 Matter Scatter
81% matchNo user reviews
Dev: Acasra Studios
Windows
From a Quark to a Planet. Survive and evolve with the universe. Grow through Nucleosynthesis, Stellar Fusion, and Supernovae. You are matter itself.
Why similar: Science 33.3%, Space 17.1%, Minimalist 16.3%, Physics 15.9%, Logic 11.4%
- #24 A Hole In Space
81% matchPositive80% 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 38.8%, Space 24%, Physics 13.7%, Simulation 11.7%, Sandbox 9.8%
- #25 Terminal Closure
79% matchNo user reviews2026
Dev: Darmac Game
Windows
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 29.2%, Space 21.9%, Science 17.1%, Physics 16.8%, Simulation 11.5%
- #26 Satellite Command
80% 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 23.9%, Space Sim 21.6%, Space 16.6%, Physics 13.5%, Sandbox 12.3%
- #27 Constellations: Beyond the edges
79% 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 22.1%, Logic 20.4%, Minimalist 12.5%, Puzzle 8.7%
- #28 Gravity Game
77% matchMixed71% of 16 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 20.7%, Space 18%, Space Sim 16.5%, Minimalist 13.1%, Physics 11.5%
- #29 Search
78% 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 27.5%, Science 25.6%, Space 23.3%, Physics 12.3%, Simulation 10.1%
- #30 9.8
78% 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 26.7%, Science 19.8%, Space 17%, Physics 15.7%, Sandbox 12.7%
- #31 Project Klorp
77% matchNo user reviews
Dev: Static Drift
Windows
Lead an expedition into an unexplored solar system. Build rockets, aircraft, and other vehicles, discover new worlds, gather resources, complete missions, unlock technology, and grow a colony of tiny purple Klorps in this spaceflight sandbox.
Why similar: Space Sim 31.3%, Space 23.7%, Physics 16.4%, Sandbox 14.9%, Simulation 13%
- #32 The Earth Sucks
76% 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 35.2%, Physics 23.5%, Space 20.6%, Simulation 15.5%, 2D 4.1%
- #33 Children of a Dead Earth
76% 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 28.7%, Space 28.1%, Space Sim 15.3%, Simulation 12.1%, Strategy 8.6%
- #34 Kerbal Space Program 2
75% 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 19.8%, Space 18.4%, Physics 15.3%, Sandbox 13.2%
- #35 Rocket Science
75% 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 24.2%, Space Sim 21.6%, Space 17.8%, Physics 14.6%, Sandbox 12.4%
- #36 RemoteSpace: First Settlement
74% 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 28.7%, Science 21%, Physics 13.6%, Space 13.3%, Sandbox 9.4%
- #37 Aptamirror
73% 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 29.3%, Logic 17.2%, Physics 16.3%, Space 15.4%, Puzzle 7.4%
- #38 ツミゲーム(Tsumi Stack)
72% match3 user reviews100% of 3 reviews2026
Dev: T.U Games
Windows
⚠️ WARNING: The most stressful physics puzzle on Steam. Tsumi Stack is an addictive game where 3 matching colors vanish! A 1mm error shifts the center of gravity and ruins everything. Avoid sudden erasures and catastrophic collapses to survive this unforgiving challenge!
Why similar: Physics 26.3%, Minimalist 23.3%, Logic 19.7%, Score Attack 13.1%, Puzzle 12.7%
- #39 Paper - A Game of Folding
74% 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 23.5%, Physics 22.8%, Puzzle 12.1%, Sandbox 8.5%
- #40 Space Thrusters
73% 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 26.9%, Space 22.5%, Physics 21.2%, Puzzle 10.9%, Strategy 7.7%
- #41 Planetris
71% match7 user reviews86% of 7 reviews2025
Dev: Milky Fox
Windows
A challenging Suika-like with no ground and an end
Why similar: Physics 21.9%, Minimalist 20.1%, Space 16.2%, Logic 11.2%, Puzzle 10%
- #42 Terra Logic
72% 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 27.9%, Physics 16.6%, Sandbox 16.2%, Space 15.5%, Space Sim 9.9%
- #43 Meco Rocket Simulator
70% 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 25.2%, Science 23.7%, Space 15.7%, Physics 15.1%, Sandbox 12.4%
- #44 Absolute Sol
71% matchNo user reviews
Dev: Absolute Sol
Windows
A physics sandbox of our Solar System. Fly the planets, change orbits, and watch Earth freeze, boil, or take a hit. Spawn worlds, cross Roche limits, and inspect atmospheres, magnetospheres, rings, and stellar heatmaps.
Why similar: Science 30.5%, Physics 19.1%, Sandbox 18.7%, Space 16.1%, Simulation 14.5%
- #45 Reflect
71% 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 18.4%, Physics 17.7%, Science 16.8%, Logic 16.1%, Puzzle 10.7%
- #46 n-body VR
73% 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 34%, Space 22.2%, Simulation 21.4%, Physics 19.4%, Indie 3.1%
- #47 GravBoost
69% match6 user reviews100% of 6 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 34%, Physics 23.9%, Space 15.4%, Simulation 11.5%, Minimalist 11%
- #48 Orbital Express
70% 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 28.5%, Science 16.2%, Sandbox 15.8%, Simulation 12.4%, Space 11.6%
- #49 Colorgrid
70% matchVery Positive91% of 159 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 23.2%, Physics 17.6%, Logic 16.6%, Minimalist 14.5%, Space 13%
- #50 Spaceport Crew
69% 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 30.1%, Space 22.8%, Physics 14.2%, Simulation 13.2%, Logic 10.1%
- #51 Gravitation
68% matchNo user reviews
Dev: GoldenEggsPub: GoldenEggs Interactive Tech
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 32.5%, Sandbox 15.3%, Simulation 13.5%, Space 13.4%, Physics 11.1%
- #52 Marble Computing
69% matchPositive86% of 21 reviews2021
Dev: Mt.Zero Software
Windows · Linux
Using only marbles and gravity, solve logic problems in surprising ways!
Why similar: Logic 31.7%, Sandbox 20.2%, Minimalist 15.4%, Simulation 13.4%, Puzzle 13%
- #53 C-Beams
68% 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 23.4%, Science 21.8%, Space 17%, Physics 13.9%, Sandbox 11.9%
- #54 Final Orbit
67% 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 22.2%, Space 20.2%, Science 17.5%, Sandbox 16.1%, Physics 11.3%
- #55 Cubersum
67% matchNo user reviews2026
Dev: Antinomic Sequence
Windows · Linux
A cubic spaceship has crashed on a distant planet. Gather the blocks around you, build a new hull from them, and climb ever higher to return to space once again.
Why similar: Space Sim 31.7%, Sandbox 15.2%, Space 12.7%, Minimalist 12.3%, Logic 12.1%
- #56 Futuclass Education
68% 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 26.9%, Physics 17.7%, Logic 16.4%, Sandbox 13.7%, Simulation 8.2%
- #57 That Rocket Game
67% 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 35.8%, Space 28.7%, Minimalist 13.8%, Physics 11.1%, Simulation 5.8%
- #58 Oscilloscopia
66% matchNo user reviews2027
Dev: Imbölt
Windows
Oscilloscopia is a puzzle game built around an authentically simulated oscilloscope. Build signals, patch modules and tune the instrument until the phosphor trace matches the target. Experiment with signal processing and find your own solutions.
Why similar: Logic 28.3%, Sandbox 17.2%, Science 16.2%, Simulation 13%, Puzzle 11.5%
- #59 Funorbit
65% 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 26.3%, Science 20.5%, Space 15.2%, Sandbox 14%, Physics 12.5%