- #1 Universe Sandbox
97% 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 28.8%, Sandbox 20.5%, God Game 12.6% ★, Physics 8.4%, Space Sim 7.6% ★
Why You'll Like It: It is the definitive physics-based space simulator that allows you to manipulate gravity, stars, and planets on a cosmic scale.
- #2 Kerbal Space Program
96% 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 38.8%, Sandbox 19.9%, Space Sim 14.9% ★, Physics 8.9%, Simulation 6.7%
Why You'll Like It: It offers a deep, physics-heavy simulation of space flight and orbital mechanics that appeals to fans of realistic space physics.
- #3 Osmos
96% matchVery Positive86% of 1,426 reviews2009
Dev: Hemisphere Games
Windows · Mac · Linux
Median: 48 minMean: 2.3 hrs≥1hr: 43%
Enter the ambient world of Osmos: elegant, physics-based gameplay, dreamlike visuals, and a minimalist, electronic soundtrack. Your objective is to grow by absorbing other motes. Propel yourself by ejecting matter behind you. But be wise: ejecting matter also shrinks you. Relax - good things come to those who wait.
Why similar: Relaxing 18%, Space 17.8%, Casual 16%, Physics 14.6%, Indie 14%
Why You'll Like It: This game shares the abstract, physics-based growth mechanics and relaxing atmosphere found in Solar 2.
- #4 Reassembly
95% matchVery Positive94% of 4,066 reviews2015
Dev: Anisoptera GamesPub: Indie Voyage
Windows · Mac · Linux
Median: 5.1 hrsMean: 26.1 hrs≥1hr: 84%
A spaceship building and universe-exploration game. Collect resources, expand and grow your fleet, and conquer your personal galaxy. Stellar ambience by Peaks.
Why similar: Space 45.7%, Sandbox 27.6%, Open World 5.6%, Top-Down 4.7%, 2D 3.9%
Why You'll Like It: This 2D space sandbox emphasizes building and physics-based combat within a procedurally generated universe.
- #5 SpaceEngine
94% 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 25.5%, Sandbox 17.9%, Space Sim 14% ★, Open World 10.2%, Sci-fi 6.5%
Why You'll Like It: This provides an unparalleled sense of scale and exploration, allowing you to traverse a procedurally generated universe.
- #6 ΔV: Rings of Saturn
94% 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 28.4%, Space Sim 14.3% ★, Sandbox 11.1%, Physics 8.2%, Open World 7%
Why You'll Like It: It features highly realistic physics and a top-down perspective that makes space mining feel grounded and tactile.
- #7 Gravity Ghost
93% matchVery Positive97% of 304 reviews2015
Dev: Ivy Games
Windows · Mac · Linux
Median: 2.0 hrsMean: 2.5 hrs≥1hr: 60%
Gravity Ghost is a physics game with a twist. Run, jump, and soar around planets, using gravity to glide through the air. Explore a shattered galaxy and rescue its survivors, armed with powerups and mysterious terraforming powers. Meet the 7 magical guardians and best their challenges. There's no killing, no dying, and no way to fail.
Why similar: Physics 50.3%, Indie 29.6%, Atmospheric 20.1%
Why You'll Like It: It focuses on fluid, physics-based movement around celestial bodies, mirroring the orbital mechanics of the seed game.
- #8 Everything
91% matchVery Positive83% of 3,828 reviews2017
Dev: David OReilly
Windows · Mac · Linux
Median: 4.1 hrsMean: 11.9 hrs≥1hr: 79%
Be the Universe in this epic, award-winning reality simulation game - featuring thousands of playable characters, endless exploration, an extraordinary soundtrack and narration from Alan Watts.
Why similar: Sandbox 23.9%, God Game 15.7% ★, Relaxing 12.6%, Open World 11.3%, Simulation 10.9%
Why You'll Like It: It captures the philosophical and abstract nature of shifting scales, allowing you to embody anything from a subatomic particle to a galaxy.
- #9 Spaceflight Simulator
90% 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 31.7%, Sandbox 22.9%, Space Sim 20.9% ★, Simulation 6.2%, Physics 4.6%
Why You'll Like It: This 2D simulator focuses on the core mechanics of building rockets and navigating orbital physics in space.
- #10 Orbit HD
92% 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 33.2%, Space Sim 16.4% ★, Sandbox 14%, Physics 10%, Relaxing 9.2%
Why You'll Like It: This title focuses specifically on the beauty and challenge of orbital mechanics in a minimalist, relaxing environment.
- #11 ASTRONEER
89% matchVery Positive92% of 136,711 reviews2019
Dev: System Era Softworks
Windows
Median: 11.7 hrsMean: 44.1 hrs≥1hr: 87%
Interact with strange new worlds in a unique and tactile way, molding the environment itself as if it were clay in your hands. Build your base, master resource management, automate your production lines, and more as you unravel the mysteries of the universe, alone or with friends.
Why similar: Space 47.3%, Sandbox 22.9%, Open World 16.3%, Sci-fi 4.5%, Simulation 3.3%
Why You'll Like It: This game offers a relaxing, sandbox-focused space exploration experience with a distinct, colorful aesthetic.
- #12 Tiny Space Academy
91% 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 38.4%, Space Sim 20.5% ★, Physics 11.9%, Simulation 8.5%, Casual 6.9%
Why You'll Like It: It provides a charming, 2D physics-based approach to space exploration and rocket building.
- #13 Outer Wilds
87% matchOverwhelmingly Positive96% of 99,459 reviews2020
Dev: Mobius DigitalPub: Annapurna Interactive
Windows
Median: 4.6 hrsMean: 16.7 hrs≥1hr: 82%
Named Game of the Year 2019 by Giant Bomb, Polygon, Eurogamer, and The Guardian, Outer Wilds is a critically-acclaimed and award-winning open world mystery about a solar system trapped in an endless time loop.
Why similar: Space 61%, Open World 13.9%, Sci-fi 7.9%, Atmospheric 6.5%, Indie 5%
Why You'll Like It: It centers on physics-based space flight and the discovery of cosmic mysteries within a small, handcrafted solar system.
- #14 Rodina
89% matchVery Positive93% of 1,329 reviews2014
Dev: Elliptic Games
Windows
Median: 2.8 hrsMean: 6.4 hrs≥1hr: 71%
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 44.6%, Sandbox 17%, Open World 11.6%, Space Sim 10.1% ★, Sci-fi 5.9%
Why You'll Like It: It offers a seamless, physics-based exploration experience that captures the feeling of flying through a vast, lonely space.
- #15 StarMade
88% matchMixed68% of 2,981 reviews2014
Dev: Schine GmbH
Windows · Mac · Linux
Median: 1.3 hrsMean: 18.8 hrs≥1hr: 54%
The ultimate space sandbox. Participate in epic fleet battles, form alliances, strive to dominate entire galaxies and harness the universe’s resources for your industrious empire or the destruction of others. Customise your experience, the universe is yours!
Why similar: Space 44.3%, Sandbox 25.8%, Open World 10.6%, Space Sim 7.6% ★, Sci-fi 5.4%
Why You'll Like It: This sandbox game allows for massive, physics-based construction and exploration in a blocky, procedurally generated galaxy.
- #16 Endless Sky
86% matchVery Positive92% of 6,938 reviews2015
Dev: Michael Zahniser
Windows · Mac · Linux
Median: 1.0 hrsMean: 13.6 hrs≥1hr: 50%
Endless Sky is a 2D space trading and combat game inspired by the classic Escape Velocity series. Work your way up from a relatively wimpy shuttle, cargo ship, or fighter, to a highly upgraded and customized flagship or to a massive fleet of warships or freighters.
Why similar: Space 53.3%, Space Sim 10% ★, Open World 9.9%, Sandbox 7.7%, Sci-fi 5.9%
Why You'll Like It: It is a 2D space exploration game that emphasizes open-world progression and ship management.
- #17 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 30.6%, Sandbox 20.2%, Space Sim 15% ★, Physics 9.6%, Open World 8.3%
Why You'll Like It: It expands on the original's physics-based space simulation with improved visuals and more complex building mechanics.
- #18 Astrox Imperium
84% 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 42.3%, Sandbox 16.3%, Space Sim 16.3% ★, Open World 7.3%, Simulation 6.6%
Why You'll Like It: This space simulation offers a deep sandbox experience with a focus on progression and exploration.
- #19 Starbound
83% matchVery Positive90% of 122,901 reviews2016
Dev: Chucklefish
Windows · Mac · Linux
Median: 17.2 hrsMean: 64.1 hrs≥1hr: 91%
You’ve fled your home, only to find yourself lost in space with a damaged ship. Your only option is to beam down to the planet below, repair your ship and set off to explore the universe...
Why similar: Space 33.4%, Sandbox 32.8%, Open World 10.1%, Relaxing 9.4%, Indie 4%
Why You'll Like It: This 2D space sandbox offers a vast universe to explore, build in, and evolve within.
- #20 Celestial Command
85% 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 46.3%, Sandbox 20%, Space Sim 11.5% ★, Simulation 9.2%, Sci-fi 5.3%
Why You'll Like It: It features realistic physics and modular ship building, perfect for those who enjoy the technical side of space games.
- #21 No Man's Sky
82% matchVery Positive85% of 402,164 reviews2016
Dev: Hello Games
Windows · Mac
Median: 20.2 hrsMean: 70.4 hrs≥1hr: 94%
No Man's Sky is a game about exploration and survival in an infinite procedurally generated universe.
Why similar: Space 39%, Sandbox 15%, Open World 14.1%, Space Sim 10.4% ★, Procedural Generation 7.4%
Why You'll Like It: It provides a massive, open-world sandbox experience focused on space exploration, survival, and discovery.
- #22 Drifter Star: Evolution
81% matchMostly Positive73% of 745 reviews2025
Dev: Kayla StudioPub: Happy Kayla
Windows
Median: 1.2 hrsMean: 1.6 hrs≥1hr: 59%
From stardust to cosmic sovereign! In this unique space game, evolve by devouring everything. Grow from a tiny rock into a massive galaxy. Each swallow brings growth, each evolution brings victory. Unlock the universe's ultimate secrets!
Why similar: Space 50.1%, Physics 13.8%, Relaxing 11.3%, Casual 7.7%, Indie 6.3%
Why You'll Like It: It offers a casual, physics-driven approach to space exploration and strategy.
- #23 Planetary Annihilation: TITANS
82% matchVery Positive85% of 14,430 reviews2015
Dev: Planetary Annihilation Inc
Windows · Mac · Linux
Median: 3.9 hrsMean: 17.4 hrs≥1hr: 73%
Wage war across entire solar systems with massive armies at your command. Annihilate enemy forces with world-shattering TITAN-class units, and demolish planets with massive super weapons!
Why similar: Space 64.7%, Sci-fi 16.4%, Simulation 8.4%, Indie 6.1%, Singleplayer 4.5%
Why You'll Like It: It captures the god-game scale of Solar 2 by allowing players to command entire planets and use them as weapons.
- #24 Sunshine Heavy Industries
81% matchVery Positive99% of 416 reviews2021
Dev: Rocket Rat Games
Windows
Welcome to Sunshine Heavy Industries! As the new spaceship engineer, solve increasingly tricky design puzzles with your own personal style. Manage customer demands, juggle budget and ship performance, and survive the questionable decision making skills of your business partner.
Why similar: Space 36.3%, Sandbox 23.5%, Relaxing 9.2%, Comedy 8.2%, Simulation 5.6%
Why You'll Like It: This game focuses on the creative, sandbox-style building of ships within a space-themed puzzle framework.
- #25 Superflight
80% matchOverwhelmingly Positive96% of 11,523 reviews2017
Dev: GrizzlyGames
Windows
Median: 42 minMean: 12.9 hrs≥1hr: 43%
Superflight is an intense, easy to learn wingsuit game with an infinite number of beautiful procedurally generated maps. A great game to relax for half an hour and chase your latest highscore!
Why similar: Relaxing 27.5%, Procedural Generation 17.4%, Casual 13.2%, Indie 12.5%, Open World 8.2%
Why You'll Like It: While not space-themed, it captures the relaxing, physics-based joy of movement and flight through procedurally generated environments.
- #26 Space Engineers
79% matchVery Positive89% of 133,238 reviews2019
Dev: Keen Software House
Windows
Median: 9.0 hrsMean: 95.7 hrs≥1hr: 87%
Space Engineers is a sandbox engineering game where you design and build ships, stations, and planetary bases in a fully destructible environment. Explore planets and space, mine resources, survive hazards, and engage in combat alone or with friends in Creative or Survival modes.
Why similar: Space 30.9%, Sandbox 20.8%, Space Sim 19.6% ★, Open World 10.4%, Physics 10.1%
Why You'll Like It: This sandbox game focuses on complex engineering and physics-based construction in a space environment.
- #27 Kinetic Void
84% matchOverwhelmingly Negative17% of 1,556 reviews2014
Dev: Badland Studio
Windows · Mac · Linux
Median: 1.9 hrsMean: 3.6 hrs≥1hr: 76%
Kinetic Void is a 3D space adventure with a focus on customization and enjoyable space simulation. The shipyard allows players to construct their ship piece by piece. Ships can be as simplistic as a cockpit, a hull, a engine and a gun, or as complex as a player wants.
Why similar: Space 52%, Sandbox 18.5%, Simulation 8.5%, Space Sim 7.1% ★, Sci-fi 6%
Why You'll Like It: It provides a sandbox space experience with a focus on ship customization and physics-based movement.
- #28 shapez
78% matchOverwhelmingly Positive96% of 15,210 reviews2020
Dev: Tobias SpringerPub: tobspr Games
Windows · Mac · Linux
Median: 2.7 hrsMean: 14.8 hrs≥1hr: 66%
shapez is an easy-going, minimalistic factory building game about the automation of shapes through extraction and satisfying production lines. Adapt to increasingly complex shapes and grow your factory across an infinitely expanding map. Your only limitation is your creativity!
Why similar: Sandbox 42.4%, Open World 13.7%, Abstract 12.7%, Procedural Generation 8.3%, Simulation 6.2%
Why You'll Like It: It mirrors the abstract, growth-oriented progression of Solar 2 through its focus on automation and expanding systems.
- #29 SPORE™
79% matchVery Positive93% of 70,545 reviews2008
Dev: Maxis™Pub: Electronic Arts
Windows
Median: 5.1 hrsMean: 19.3 hrs≥1hr: 86%
Be the architect of your own universe with Spore, an exciting single-player adventure. From Single Cell to Galactic God, evolve your creature in a universe of your own creations.
Why similar: Space 27.3%, God Game 23.9% ★, Sandbox 19%, Open World 9.9%, Simulation 5.7%
Why You'll Like It: It shares the theme of evolution and progression, allowing you to grow from a single cell to a galactic civilization.
- #30 Inspiral: Echoes of Gravity
77% 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 21.6%, God Game 12.7% ★, Sandbox 12.7%, Space Sim 11.6% ★, Relaxing 6.2%
- #31 Terra Firma 2
75% matchVery Positive89% of 103 reviews2025
Dev: Working as Intended
Windows
Shape breathtaking worlds in Terra Firma 2, a vast simulation where your creations evolve through the forces of nature. Sculpt the land, then watch as weather, erosion, and life itself transform your world into a dynamic, living ecosystem- right down to every plant and creature.
Why similar: God Game 28.1% ★, Sandbox 25.2%, Physics 10.9%, Relaxing 9.6%, Simulation 8.1%
- #32 Space Engineers 2
74% matchMostly Positive76% of 4,293 reviews2025
Dev: Keen Software House
Windows
Median: 1.3 hrsMean: 7.1 hrs≥1hr: 58%
Space Engineers 2 is a sandbox about engineering and colonization where you build ships, stations, and planetary bases in a fully destructible world. Begin the story of Miro and Ivan Sokol, expand humanity’s foothold in the Almagest system, and fight to survive.
Why similar: Space 29.5%, Sandbox 21%, Space Sim 13.8% ★, Physics 9.2%, Open World 9.2%
- #33 Space Pirates and Zombies
77% matchVery Positive91% of 3,143 reviews2011
Dev: MinMax Games Ltd.
Windows · Mac · Linux
Median: 2.6 hrsMean: 10.4 hrs≥1hr: 86%
Explore a randomly generated Galaxy populated with factions, enemies, missions, and items providing you with a unique experience each time you play.
Why similar: Space 54%, Sandbox 8.8%, Top-Down 7.7%, Sci-fi 7.2%, Open World 6.8%
- #34 Heliopedia
76% matchVery Positive88% of 212 reviews2021
Dev: Sokpop Collective
Windows · Mac
Median: 1.1 hrsMean: 5.0 hrs≥1hr: 50%
A fictional universe sandbox/exploration game. 🪐☄️✨ Shape your own solar system by terraforming planets. Find new species and make beautiful ecosystems . . . or breed destruction with volcanos, lightning storms and wildfires!
Why similar: Space 25.5%, God Game 24% ★, Sandbox 19.7%, Space Sim 18.2% ★, Simulation 6.6%
- #35 Space Pirates And Zombies 2
76% matchMostly Positive79% of 2,826 reviews2017
Dev: MinMax Games Ltd.
Windows · Mac · Linux
Median: 4.6 hrsMean: 13.5 hrs≥1hr: 81%
Design and then improve the ultimate mothership. Explore a persistent living galaxy populated by 200 unique captains that can do everything you can do. Survive the zombie infection and then fight them back. Make allies and start your own faction. Build your empire. Also includes Sandbox Mode.
Why similar: Space 53.4%, Sandbox 12.6%, Open World 10.1%, Simulation 5.1%, Indie 5%
- #36 Star Valor
73% matchVery Positive89% of 3,325 reviews2022
Dev: Rafael Burgos
Windows
Median: 4.1 hrsMean: 28.8 hrs≥1hr: 78%
Choose your own destiny as you explore an open-world procedurally generated galaxy where anything is possible. Become a miner, a trader, a bounty hunter, a pirate, or perhaps a jack of all trades. Start off small and build your way to the top but remember with every action, comes consequences.
Why similar: Space 37.4%, Sandbox 21%, Open World 9.1%, Procedural Generation 6.7%, Relaxing 6.5%
- #37 Vanguard Galaxy
70% matchVery Positive90% of 353 reviews2025
Dev: Bat Roost Games
Windows
A relaxing game about space exploration that can be played full screen or at the bottom of your screen. Trade, fight, mine and salvage your way through a procedurally generated galaxy. Let the game idle while your autopilot handles business and builds your fortune.
Why similar: Space 28.6%, Sandbox 18.8%, Space Sim 12.1% ★, Top-Down 7.2%, Procedural Generation 7%
- #38 SPORE™ Galactic Adventures
74% matchVery Positive89% of 7,556 reviews2009
Dev: EA - MaxisPub: Electronic Arts
Windows
Median: 3.4 hrsMean: 36.7 hrs≥1hr: 66%
Take Your Creature From Zero To Galactic HeroGet out of your starship and turn your Spore creatures into legendary Space Captains. For the first time, beam down with your allies to take on action-packed, planetside adventures. Complete quests, collect rewards, and even create your own missions.
Why similar: Space 35.8%, Sandbox 18.5%, God Game 14.5% ★, Open World 10.4%, Simulation 10%
- #39 Star Nomad 2
75% matchMostly Positive72% of 158 reviews2015
Dev: Huy Phan
Windows · Mac
A space trader & combat sim meets squad-RPG, large scale conquest, choice driven gameplay with fluid & punchy tactical real-time combat set in a dynamic open-world sandbox.
Why similar: Space 39.6%, Sandbox 16.8%, Space Sim 9.4% ★, Simulation 9.2%, Open World 8.5%
- #40 3030 Deathwar Redux - A Space Odyssey
73% matchVery Positive94% of 1,148 reviews2017
Dev: Bird in SkyPub: Crunchy Leaf Games
Windows
Median: 7.5 hrsMean: 8.2 hrs≥1hr: 91%
3030 Deathwar is a unique mix of Adventure and Space Sim. Explore star systems, mine and hunt pirates in top-down mode. Leave your ship and switch into classic Adventuring mode, where you explore derelicts, talk to shady characters or head over to the space bar for a drink.
Why similar: Space 37.1%, Sandbox 13%, Space Sim 12% ★, Open World 9%, Simulation 6.8%
- #41 Space Simulation Toolkit
73% 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: Sandbox 27.1%, Space 24%, Space Sim 15.5% ★, Physics 13.1%, Simulation 11%
- #42 Jitter
68% matchVery Positive86% of 153 reviews2025
Dev: Berko Games
Windows
A sci-fi exploration & survival game where you take on the role of a spaceship’s AI. Explore, fight, and survive across a mining colony in the Main Asteroid Belt. Rebuild your ship. Rescue your crew. Reveal the truth behind your mission.
Why similar: Space 28.3%, Sandbox 17.4%, Space Sim 17.3% ★, Open World 9.4%, Physics 8.5%
- #43 Destination Sol
72% matchMostly Positive79% of 1,362 reviews2015
Dev: MovingBlocks
Windows · Mac · Linux
Median: 30 minMean: 3.8 hrs≥1hr: 30%
Pilot your ship in the seamless open world made of space, planets, and more. Find new ships and equipment, find allies and beat all the enemies in this open source space shooter!
Why similar: Space 60.4%, Open World 16.6%, Indie 8.6%, Procedural Generation 5.3%, 2D 5.2%
- #44 Kselebox
71% matchMostly Positive76% of 68 reviews2021
Dev: KseLeroNPub: ONRI Studio
Windows
Kselebox is a sandbox game, which means you can do whatever you want in it! You can build a rocket and go to explore the vastness of space. Or maybe you want to build a huge car? No problem! Players can save their buildings and then publish them to the Steam Workshop.
Why similar: God Game 25.8% ★, Sandbox 25.7%, Physics 11.1%, Relaxing 8.8%, Simulation 8%
- #45 Microcosmum 2
70% matchMixed63% of 136 reviews2024
Dev: Satur Entertainment
Windows
A relaxing strategy game featuring unconventional gameplay. Your objectives include development, evolution, border expansion and protection of your hive.
Why similar: Space 25.5%, Sandbox 15.8%, Simulation 12.5%, Casual 10.9%, Relaxing 8.8%
- #46 helionaut
69% matchVery Positive95% of 223 reviews2020
Dev: Sokpop Collective
Windows · Mac
An open-world galaxy adventure game ✨🚀🌠 Explore a procedurally-generated universe filled with diverse micro-planets, asteroid belts and UFOs. 👽
Why similar: Space 41.3%, Indie 13.8%, Procedural Generation 12.5%, Open World 11.9%, Simulation 11.7%
- #47 Planetary Life
65% matchOverwhelmingly Positive95% of 743 reviews2025
Dev: Sotenbox
Windows
Median: 3.5 hrsMean: 7.9 hrs≥1hr: 86%
Manipulate climate, add plants and evolve creatures in this planet and life sandbox simulation game. From cells to civilizations, spread life throughout the whole planet. Or just enjoy watching your creation burn!
Why similar: God Game 30.1% ★, Sandbox 23.9%, Space 17.5%, Relaxing 9.5%, Procedural Generation 9.3%
- #48 Space Mechanic Simulator
69% 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 33.9%, Space Sim 21.2% ★, Physics 7.8%, Relaxing 7.7%, Simulation 7.2%
- #49 Interstellar Pilot 2
68% matchVery Positive92% of 153 reviews2023
Dev: Pixelfactor Ltd.
Windows
The hit mobile game Interstellar Pilot 2 has come to Steam. Join the TEF forces heading to the Gatopean sector to find a new home for mankind. Play how you like in this open world space-sim developed by Pixelfactor.
Why similar: Space 25.4%, Sandbox 24.7%, Space Sim 21.5% ★, Simulation 11.7%, Open World 7.5%
- #50 The Sandbox Evolution - Craft a 2D Pixel Universe!
72% matchMixed42% of 1,512 reviews2016
Dev: PIXOWL INC.
Windows
Median: 42 minMean: 3.8 hrs≥1hr: 43%
Use your godly powers to craft amazing pixel worlds or destroy the universe! Play with physics, over 200 elements and controllable heroes. Make your own games or levels, and then share your creations online. There are no limits to your creativity and imagination!
Why similar: Sandbox 44.9%, God Game 26.5% ★, Physics 9.2%, Simulation 8.4%, 2D 6.1%
- #51 VOYAGER
66% matchVery Positive95% of 167 reviews2023
Dev: Planetary Gears
Windows · Linux
Come with us now on a journey through music and space... To the world of VOYAGER ◯∘ A minimalist, relaxing & atmospheric experience to chill out to for a while…
Why similar: Space 30.7%, Space Sim 20.2% ★, Abstract 9.9%, Relaxing 8.9%, Physics 8.6%
- #52 Void Destroyer 2
68% matchVery Positive80% of 664 reviews2020
Dev: Iteration 11
Windows
Median: 2.4 hrsMean: 14.5 hrs≥1hr: 74%
Start with nothing... End with everything! All you have is a basic ship, barely fit for combat, with it you'll start your journey and empire. A open world space sandbox, inspired by and expanding the classics.
Why similar: Space 28.7%, Space Sim 21.4% ★, Sandbox 21.2%, Open World 11%, Sci-fi 6.4%
- #53 Reus
69% matchMostly Positive78% of 5,900 reviews2013
Dev: Abbey Games
Windows · Mac · Linux
Median: 2.3 hrsMean: 5.6 hrs≥1hr: 83%
In Reus, you control powerful giants to shape the planet to your will. You can create mountains, oceans, forests and more. Enrich your planet with plants, minerals and animal life. There is only one thing on the planet that you do not control: mankind, with all their virtues and and all their vices.
Why similar: God Game 53.6% ★, Sandbox 20.9%, Simulation 7.5%, Indie 7.3%, Casual 4.1%
- #54 Habitat
71% matchMostly Negative40% of 261 reviews2016
Dev: 4gencyPub: Versus Evil
Windows · Mac · Linux
Median: 3.1 hrsMean: 3.9 hrs≥1hr: 85%
Habitat is a physics-based space game where you build, fly, and fight with whatever you can find out in space. Upgrade and arm your creations with weapons and structures you find in orbit, fly and explore using rocket physics.Battle deadly enemies in Campaign Mode to save humanity or explore Sandbox Mode for true creative control.
Why similar: Space 53.7%, Sandbox 22.7%, Simulation 10.3%, Indie 7.2%, Physics 6.1%
- #55 Rebel Galaxy
67% matchVery Positive85% of 8,230 reviews2015
Dev: Double Damage Games
Windows · Mac
Median: 1.8 hrsMean: 13.6 hrs≥1hr: 62%
Rebel Galaxy is a swashbuckling space adventure, with action-packed combat, exploration, discovery, trade, and “negotiation” with the outlandish denizens at the edge of the known universe.
Why similar: Space 53.5%, Space Sim 13.2% ★, Open World 10.4%, Sandbox 8.1%, Sci-fi 7.1%
- #56 Reus 2
64% matchVery Positive95% of 2,219 reviews2024
Dev: Abbey GamesPub: Firesquid
Windows
Median: 3.5 hrsMean: 9.8 hrs≥1hr: 75%
Shape worlds with your godly titans. Make symbiotic ecosystems and inspire humanity with your creations. Their achievements unlock new possibilities. Make different planets for different human spirits, and fill the universe with life!
Why similar: God Game 45.3% ★, Sandbox 26.7%, Relaxing 11.5%, Simulation 7.2%, 2D 4.2%
- #57 EVERSPACE™ 2
64% matchVery Positive86% of 12,587 reviews2023
Dev: ROCKFISH Games
Windows · Mac
Median: 7.7 hrsMean: 29.1 hrs≥1hr: 87%
EVERSPACE 2 is a fast-paced single-player spaceship shooter with exploration in space and on planets, tons of loot, RPG elements, mining, and crafting. Experience an exciting sci-fi story set in a vivid, handcrafted open world full of secrets, puzzles, and perils.
Why similar: Space 60%, Open World 18.7%, Sci-fi 9.8%, Simulation 8.9%, Singleplayer 2.7%
- #58 Jumpdrive
71% 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 61.8%, Simulation 15.2%, Open World 12.6%, Indie 10.4%
- #59 Mountain
67% matchVery Positive88% of 16,289 reviews2014
Dev: David OReilly
Windows · Mac · Linux
Median: 6.2 hrsMean: 103.3 hrs≥1hr: 81%
Existential Nature Simulation
Why similar: Relaxing 22.2%, God Game 21.9% ★, Simulation 16.8%, Casual 12.2%, Space 10.9%