- #1 Empyrion - Galactic Survival
97% matchMostly Positive78% of 34,392 reviews2020
Dev: Eleon Game Studios
Windows
Median: 6.2 hrsMean: 77.1 hrs≥1hr: 77%
Build and explore in a true space sandbox survival adventure. Construct mighty capital vessels, sprawling planetary settlements, and vast space stations in your galactic journey to discover the mysteries of Empyrion!
Why similar: Space 17.1%, Building 16.2%, Voxel 14.9% ★, Space Sim 14.2%, Sandbox 10.8%
Why You'll Like It: Offers a comprehensive survival experience with extensive ship and base building across multiple planets and space.
- #2 Space Engineers
96% matchVery Positive89% of 134,313 reviews2019
Dev: Keen Software House
Windows
Median: 9.0 hrsMean: 96.4 hrs≥1hr: 88%
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 19.2%, Building 18.8%, Space Sim 18%, Sandbox 14.2%, Simulation 7.9%
Why You'll Like It: The gold standard for block-based physics building and survival in space, mirroring the core construction loop of Starship EVO.
- #3 Avorion
96% matchVery Positive90% of 14,549 reviews2020
Dev: Boxelware
Windows · Mac · Linux
Median: 18.8 hrsMean: 99.5 hrs≥1hr: 90%
A procedural co-op space sandbox where players can build their own space ships out of dynamically scalable blocks. Fight epic space battles, explore, mine, trade, wage wars and build your own empire to save your galaxy from being torn apart by an unknown enemy.
Why similar: Space 16.1%, Building 16%, Space Sim 15.8%, Voxel 12.6% ★, Sandbox 12.4%
Why You'll Like It: Features a unique procedural ship-building system that allows for immense scale and fleet management in an open galaxy.
- #4 Cosmoteer: Starship Architect & Commander
94% matchVery Positive94% of 12,820 reviews2022
Dev: Walternate Realities
Windows
Median: 19.2 hrsMean: 41.1 hrs≥1hr: 92%
Design and simulate the starships of your dreams! Command your ship or fleet in epic battles and manage your crew while exploring a dangerous galaxy. Play alone or with friends, test your ships in online PvP, and let your imagination reach for the stars!
Why similar: Space 20.9%, Building 20.6%, Space Sim 17.6%, Spaceships 11.9% ★, Sci-fi 10.5%
Why You'll Like It: Focuses on detailed ship design and physics-based combat, rewarding players for efficient engineering and layout planning.
- #5 Starbase
95% matchMixed56% of 6,753 reviews2021
Dev: Frozenbyte
Windows
Median: 14.3 hrsMean: 91.6 hrs≥1hr: 91%
Starbase is a hybrid voxel/vertex-based space MMO with a fully destructible and infinitely expanding universe, with a focus on building and designing spaceships and stations, exploration, resource gathering, crafting, trading, and combat.
Why similar: Building 18.5%, Space Sim 16.9%, Space 15.7%, Voxel 11.7% ★, Sandbox 11.7%
Why You'll Like It: A voxel-based space MMO that emphasizes intricate ship construction and realistic damage modeling.
- #6 StarMade
94% matchMixed68% of 2,991 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 24.6%, Sandbox 15.7%, Building 14.6%, Voxel 13% ★, Open World 7%
Why You'll Like It: A classic block-based space sandbox that provides deep customization for ships and space stations.
- #7 Space Haven
91% matchVery Positive86% of 11,081 reviews2026
Dev: Bugbyte Ltd.
Windows · Mac · Linux
Median: 4.2 hrsMean: 20.9 hrs≥1hr: 71%
Embark on a space voyage with your ragtag crew of civilians in search of a new home. Build spaceships tile by tile, create optimal gas conditions, manage the needs and moods of their crew, encounter other space-faring groups, and explore the universe in this spaceship colony simulation.
Why similar: Space 21.4%, Building 19.7%, Space Sim 17.6%, Sandbox 15.2%, Simulation 8.4%
Why You'll Like It: Combines colony management with modular ship building, requiring players to manage resources and crew in a hostile environment.
- #8 Interstellar Rift
93% matchMixed68% of 1,666 reviews2020
Dev: Split PolygonPub: Iceberg Interactive
Windows
Median: 4.2 hrsMean: 33.1 hrs≥1hr: 83%
Interstellar Rift is an open world starship simulator with an emphasis on ship construction and multi-player interaction. Survive in a hostile galaxy with your own custom designed and constructed starship. Invite other players to join your crew or fight them across the galaxy!
Why similar: Space Sim 19.3%, Building 19.1%, Space 16.4%, Sandbox 13.5%, Open World 7.9%
Why You'll Like It: A multiplayer-focused space simulation that requires players to build and maintain complex ship systems.
- #9 Astro Colony
90% matchVery Positive81% of 2,699 reviews2026
Dev: Terad Games
Windows
Median: 4.4 hrsMean: 16.2 hrs≥1hr: 78%
Explore endless Universe and create the most efficient constellation of colonies. Build conveyor systems to automate production. Take care of Astronauts and their needs! Establish new colonies as part of intergalactic simulation.
Why similar: Space 24.6%, Building 18.2%, Space Sim 14.2%, Sandbox 11.8%, Simulation 8.6%
Why You'll Like It: Focuses on automation and base building in space, perfect for players who enjoy the logistical side of Starship EVO.
- #10 Celestial Command
92% matchMixed62% of 704 reviews2014
Dev: Science Interactive
Windows · 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 30.5%, Sandbox 14.3%, Simulation 12%, Building 11.7%, Space Sim 11%
Why You'll Like It: Features physics-based space construction where every component and thruster placement impacts the ship's flight dynamics.
- #11 Reassembly
91% matchVery Positive94% of 4,094 reviews2015
Dev: Anisoptera GamesPub: Indie Voyage
Windows · Mac · Linux
Median: 5.0 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: Building 31.4%, Space 30%, Sandbox 20%, Action 4.6%, Open World 4.4%
Why You'll Like It: A unique 2D space sandbox that emphasizes modular ship design and procedural generation.
- #12 From the Depths
89% matchVery Positive89% of 12,793 reviews2020
Dev: Brilliant Skies Ltd.
Windows · Mac · Linux
Median: 4.2 hrsMean: 40.7 hrs≥1hr: 81%
Over 1000 unique components allow you to build and command voxel vehicles from the deep ocean to outer space! Forge strategies, allegiances and fleets strong enough to destroy eight deadly factions of the planet and reign supreme. A genre-defying mashup of simulation, building, RTS and RPG.
Why similar: Building 24.4%, Voxel 21% ★, Space 18.2%, Sandbox 17.5%, Simulation 7.9%
Why You'll Like It: Provides an incredibly deep vehicle construction system that allows for complex mechanical and weapon design.
- #13 Astrox Imperium
88% matchVery Positive84% of 1,249 reviews2019
Dev: Jace Masula
Windows
Median: 4.1 hrsMean: 16.2 hrs≥1hr: 66%
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 36.5%, Space Sim 20.1%, Sandbox 15.1%, Simulation 11.7%, Open World 7.7%
Why You'll Like It: Provides a deep space exploration experience with a focus on ship progression and modular customization.
- #14 X4: Foundations
87% matchMostly Positive80% of 30,013 reviews2018
Dev: Egosoft
Windows · Linux
Median: 5.0 hrsMean: 95.3 hrs≥1hr: 80%
Your journey to building a vast space empire begins behind the controls of a single ship. Explore, trade, fight, and build as you rise to command fleets, stations, and entire economies in a living, fully simulated universe that reacts to every decision.
Why similar: Space 27.2%, Space Sim 22.6%, Sandbox 17.1%, Simulation 9.9%, Open World 9.7%
Why You'll Like It: Offers a deep space simulation experience with a focus on economy, fleet management, and modular ship upgrades.
- #15 Starcom: Unknown Space
86% matchVery Positive92% of 4,461 reviews2024
Dev: Wx3 Labs, LLC
Windows
Median: 8.3 hrsMean: 16.8 hrs≥1hr: 82%
Starcom: Unknown Space is an action RPG of space exploration and adventure. Build your own starship while discovering an epic story in a universe of strange mysteries, alien factions and uncharted worlds.
Why similar: Space 34.9%, Space Sim 21.9%, Building 14.3%, Open World 10.7%, Sci-fi 7.5%
Why You'll Like It: An exploration-heavy RPG that features a modular ship-building system that evolves as you discover new technology.
- #16 Kinetic Void
89% matchOverwhelmingly Negative17% of 1,558 reviews2014
Dev: Badland Studio
Windows · Mac · Linux
Median: 1.9 hrsMean: 3.7 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 36.9%, Sandbox 14.4%, Simulation 12.1%, Building 9.9%, Space Sim 7.4%
Why You'll Like It: Features a modular ship-building system that allows for complete control over the design and functionality of your spacecraft.
- #17 Void Destroyer 2
86% matchVery Positive80% of 674 reviews2020
Dev: Iteration 11
Windows
Median: 2.8 hrsMean: 15.3 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 Sim 20.3%, Space 18.5%, Building 15.4%, Sandbox 15%, Open World 8.4%
Why You'll Like It: Blends space simulation, RTS elements, and ship building into a cohesive open-world experience.
- #18 Starcom: Nexus
84% matchVery Positive90% of 2,315 reviews2019
Dev: Wx3 Labs, LLC
Windows · Linux
Median: 3.8 hrsMean: 13.5 hrs≥1hr: 84%
Suddenly thrown into an unknown galaxy, you must explore, fight or befriend aliens and transform your ship from a small survey vessel into a powerful battlecruiser to unravel the mystery of the forces that brought you here and find your way home.
Why similar: Space 40.6%, Space Sim 15.6%, Building 10.7%, Sci-fi 10.1%, Open World 7.8%
Why You'll Like It: Combines action-RPG elements with a modular ship-building system in a vibrant, explorable galaxy.
- #19 Scrap Mechanic
81% matchVery Positive92% of 122,134 reviews2026
Dev: Axolot Games
Windows
Median: 11.4 hrsMean: 64.5 hrs≥1hr: 91%
Enter the creative paradise of Scrap Mechanic! Build fantastic machines, go on adventures with your friends and defend against waves of evil Farmbots in this imaginative multiplayer survival sandbox. With Scrap Mechanic’s powerful creation tools you can engineer your own adventures!
Why similar: Building 34.2%, Sandbox 22.1%, Open World 11.8%, Multiplayer 7.4%, Physics 7.1%
Why You'll Like It: While not space-themed, its physics-based construction system is arguably the most similar to the building mechanics in Starship EVO.
- #20 Between the Stars
83% matchMostly Positive74% of 2,495 reviews2024
Dev: Isolated Games
Windows
Median: 2.5 hrsMean: 6.6 hrs≥1hr: 70%
Become the Captain of an interstellar cruiser and journey across the galaxy to save the Republic. During your journey you will have to make important decisions, improve the weaponry of your ship and fight against numerous enemies.
Why similar: Space 31.8%, Space Sim 19.7%, Simulation 10.9%, Sandbox 10.7%, Sci-fi 6.5%
Why You'll Like It: An action-RPG space sim that focuses on commanding a ship and managing its systems during combat.
- #21 TerraTech
82% matchVery Positive91% of 24,920 reviews2018
Dev: Payload StudiosPub: Mythwright
Windows · Mac · Linux
Median: 8.0 hrsMean: 32.5 hrs≥1hr: 90%
TerraTech is an open-world, sandbox adventure game, where you design and build your own creations through a mix of crafting, combat and discovery. Design vehicles from a huge library of blocks. Scavenge, craft and buy new parts to survive and become the ultimate planetary prospector.
Why similar: Building 38.3%, Sandbox 25.6%, Open World 13.1%, Multiplayer 7.3%, Action 5.4%
Why You'll Like It: Focuses on modular vehicle building and combat, sharing the satisfying 'build-and-test' loop found in Starship EVO.
- #22 Evochron Mercenary
84% matchMostly Positive77% of 435 reviews2012
Dev: StarWraith 3D Games LLC
Windows
Median: 2.7 hrsMean: 6.8 hrs≥1hr: 73%
The life of an independent mercenary is rarely without excitement. Your spacecraft awaits and your adventure begins in the Sapphire star system.
Why similar: Space 33.5%, Space Sim 17.3%, Simulation 13.6%, Sandbox 11.6%, Open World 6.9%
Why You'll Like It: A deep space flight simulator that offers a high level of control and Newtonian physics for dedicated pilots.
- #23 Elite Dangerous
82% matchMostly Positive77% of 107,282 reviews2015
Dev: Frontier Developments
Windows
Median: 18.2 hrsMean: 148.6 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 29%, Space Sim 28.7%, Open World 10.3%, Sandbox 7.8%, Simulation 7.7%
Why You'll Like It: The definitive space flight simulator for players who want a realistic scale and deep simulation of space travel.
- #24 Space Engineers 2
77% matchMostly Positive75% of 5,449 reviews2025
Dev: Keen Software House
Windows
Median: 1.9 hrsMean: 11.1 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: Building 20.4%, Space 20.4%, Sandbox 15.7%, Space Sim 13.6%, Simulation 7.8%
- #25 Main Assembly
79% matchVery Positive83% of 1,351 reviews2021
Dev: Bad Yolk GamesPub: Team17
Windows
Median: 54 minMean: 7.0 hrs≥1hr: 49%
You’re the designer, engineer and architect if you can imagine it you can create it! Construct robots of any shape or size from eight-legged spider bots to eerie UFO contraptions.
Why similar: Building 37.8%, Sandbox 29.7%, Simulation 15.1%, Physics 9.2%, Multiplayer 8.2%
Why You'll Like It: An advanced robotics and vehicle building game that offers immense creative freedom through its physics engine.
- #26 SpaceCraft
77% matchMixed65% of 2,687 reviews2026
Dev: Shiro Games
Windows
Median: 13.4 hrsMean: 47.3 hrs≥1hr: 91%
The Universe is yours. SpaceCraft is an online space exploration and building game. Explore a vast galaxy of solar systems and planets, mine and craft resources, design and build ships, automate planetary bases and interplanetary logistics, trade and cooperate.
Why similar: Space 24.7%, Space Sim 20.1%, Sandbox 16.8%, Open World 9.6%, Simulation 9%
- #27 BossConstructor
79% matchMostly Positive73% of 221 reviews2016
Dev: Neomateria Games GmbH
Windows · Mac · Linux
Median: 3.6 hrsMean: 6.8 hrs≥1hr: 77%
Scavenge modules, combine them in the deadliest and most efficient ways imaginable, and fly your very own spaceship through alien space with BossConstructor. Thousands of procedurally generated galaxies await you and your space-faring collection of assembled modules to explore them.
Why similar: Space 30.7%, Building 23.5%, Simulation 15.7%, Action 9.8%, Indie 7.6%
Why You'll Like It: A space-themed action-RPG that revolves around building and upgrading ships to take on increasingly difficult challenges.
- #28 Solar Expanse - Space Exploration Manager
75% matchVery Positive88% of 1,295 reviews2026
Dev: SpaceOpsPub: Games Operators
Windows
Median: 4.8 hrsMean: 14.7 hrs≥1hr: 77%
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: Space 24.6%, Space Sim 17.9%, Sandbox 16.4%, Building 11.3%, Simulation 9.4%
- #29 The Last Starship
75% matchMostly Positive75% of 1,688 reviews2026
Dev: Introversion Software
Windows · Mac
Median: 6.1 hrsMean: 12.2 hrs≥1hr: 80%
The Last Starship is a 2D space construction game where you design and upgrade your starship. Choose your path: pirate hunter, miner, engineer, spacebus driver, and more, whilst exploring vibrant star systems. Enjoy a growing sandbox world, with regular free updates. Your cosmic adventure awaits!
Why similar: Space 22.1%, Building 20.7%, Space Sim 20.4%, Sandbox 16.4%, Simulation 9.1%
- #30 Hardspace: Shipbreaker
74% matchVery Positive89% of 22,322 reviews2022
Dev: Blackbird Interactive
Windows
Median: 4.7 hrsMean: 24.1 hrs≥1hr: 86%
Equipped with cutting-edge salvaging tech, carve & slice spaceships to recover valuable materials. Upgrade your gear to take on more lucrative contracts and pay your billion credits debt to LYNX Corp!
Why similar: Space 28.7%, Sandbox 14.4%, Space Sim 13.4%, Simulation 10.6%, Sci-fi 9.6%
- #31 Fragmented
78% matchMixed43% of 1,964 reviews2017
Dev: Above and Beyond Technologies
Windows
Median: 42 minMean: 3.9 hrs≥1hr: 41%
Stranded in a hostile alien world, you must fight to survive. Hunt, harvest, craft, advance skills, and build using local resources along with technology from your voyage.
Why similar: Building 22.9%, Sandbox 19.7%, Open World 15.3%, Space 13.8%, Multiplayer 10.1%
Why You'll Like It: A survival game that features building and crafting mechanics in a harsh, alien sci-fi setting.
- #32 Evospace
76% matchVery Positive83% of 392 reviews2019
Dev: Quantum Rivet
Windows · Mac
Contribute to the colonization of the universe. Get and process resources, develop your technologies. Achieve complete automation and build a portal to include another planet in the chain of worlds.
Why similar: Building 24%, Sandbox 19.6%, Voxel 17.7% ★, Simulation 12.7%, Open World 10.4%
- #33 Star Rangers™ XE
76% matchMixed40% of 153 reviews2016
Dev: Project Whitecard Studios Inc.Pub: Awestruck Games
Windows · Mac · Linux
Explore space and build on other worlds in Star Rangers! Star Rangers is a space exploration and construction game that allows players to build habitats and spacecraft, acquire gear and explore the solar system.
Why similar: Building 17.9%, Space 17.2%, Sandbox 14.1%, Space Sim 12.2%, Simulation 10.1%
- #34 Space Pirates And Zombies 2
73% matchMostly Positive79% of 2,842 reviews2017
Dev: MinMax Games Ltd.
Windows · Mac · Linux
Median: 4.5 hrsMean: 13.4 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 38.6%, Building 10.6%, Sandbox 10%, Open World 8.6%, Simulation 7.4%
- #35 Autocraft
74% matchMixed56% of 298 reviews2017
Dev: Alientrap
Windows · Mac
Median: 54 minMean: 3.2 hrs≥1hr: 44%
Create, Collect, and Crash in Autocraft, a physics destruction sandbox. Create your own cars, rockets, tanks, planes, boats, and more.
Why similar: Building 23.9%, Sandbox 22.3%, Space 18.9%, Simulation 12.2%, Space Sim 8.1%
- #36 Kerbal Space Program 2
72% matchMostly Negative26% of 31,953 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: Space 20.5%, Building 19.3%, Sandbox 14.8%, Space Sim 14.8%, Simulation 6.9%
- #37 Starminer
69% matchMostly Positive73% of 1,858 reviews2026
Dev: CoolAndGoodGames
Windows
Median: 7.2 hrsMean: 20.1 hrs≥1hr: 81%
Design and build a massive interstellar fleet in this simulation sandbox. Strip space of its minerals for profit, but stay alert: your greed attracts the alien. Master deep base-building and deploy warships to protect your empire in immersive real-time space.
Why similar: Space 22.6%, Space Sim 22.5%, Sandbox 17.9%, Spaceships 15.2% ★, Open World 8.4%
- #38 Star Valor
70% matchVery Positive89% of 3,421 reviews2022
Dev: Rafael Burgos
Windows
Median: 4.1 hrsMean: 29.0 hrs≥1hr: 79%
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 27.9%, Sandbox 19.9%, Spaceships 13.8% ★, Space Sim 13.6%, Open World 9.9%
- #39 Landinar: Into the Void
73% matchMixed56% of 244 reviews2019
Dev: Convoy Games
Windows
Median: 2.6 hrsMean: 6.5 hrs≥1hr: 88%
Landinar: Into the Void is a top-down space-adventure-RPG. You are recruited as a rookie bounty hunter in the oppressive Landinar Empire. On your journey through the quadrant you will meet diverse characters, build your own spaceship and choose your battles.
Why similar: Space 25%, Building 18.7%, Space Sim 17.5%, Sandbox 9.5%, Action 6.5%
- #40 Stationeers
70% matchVery Positive88% of 9,229 reviews2017
Dev: RocketWerkz
Windows
Median: 10.2 hrsMean: 85.3 hrs≥1hr: 85%
Stationeers puts you in control of the construction and management of a space station to run by yourself or online with your friends. Complex atmospheric, electrical, manufacturing, agriculture, and gravitational systems require your thought and management at all times!
Why similar: Space 27.6%, Building 27.6%, Sandbox 20.7%, Sci-fi 10%, Physics 7.4%
- #41 Rodina
71% matchVery Positive93% of 1,333 reviews2014
Dev: Elliptic Games
Windows
Median: 2.9 hrsMean: 6.4 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 37.4%, Sandbox 15.7%, Space Sim 12.4%, Open World 11.7%, Sci-fi 7.8%
- #42 Astrox: Hostile Space Excavation
71% matchVery Positive84% of 455 reviews2015
Dev: Jace Masula
Windows
Median: 3.0 hrsMean: 9.2 hrs≥1hr: 75%
Exiled to a deep space mining sector, you are left with a crappy ship, a laser, and a small mining beam. It is up to you to survive by working your way through the galaxy. Mine asteroids, refine and trade the ore, buy upgrades for your ship, hunt pirates... you get it.
Why similar: Space 33%, Space Sim 17.1%, Sandbox 16.5%, Simulation 13.6%, Open World 7.9%
- #43 Habitat
73% matchMostly Negative40% of 261 reviews2016
Dev: 4gencyPub: Versus Evil
Windows · Mac · Linux
Median: 3.1 hrsMean: 3.8 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 41.7%, Sandbox 19.3%, Simulation 16%, Action 8.8%, Indie 7.3%
- #44 Spaceflight Simulator
68% matchOverwhelmingly Positive97% of 9,683 reviews2022
Dev: Team Curiosity ✦
Windows · Mac
Median: 5.3 hrsMean: 15.2 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 23%, Space Sim 22.6%, Sandbox 18.5%, Building 10%, Simulation 9%
- #45 Medieval Engineers
72% matchMixed52% of 7,324 reviews2015
Dev: Keen Software House
Windows
Median: 2.0 hrsMean: 16.9 hrs≥1hr: 64%
Medieval Engineers is a sandbox game about engineering, construction and the maintenance of architectural works and mechanical equipment using medieval technology. Players build castles; construct mechanical devices and underground mining. There is an entire planet to explore!
Why similar: Building 34%, Sandbox 22.5%, Open World 10.5%, Simulation 8.6%, Physics 6.7%
- #46 Nimbatus - The Space Drone Constructor
69% matchMostly Positive79% of 2,164 reviews2020
Dev: Stray Fawn StudioPub: Stray Fawn Publishing
Windows · Mac · Linux
Median: 3.1 hrsMean: 5.1 hrs≥1hr: 84%
Command the Nimbatus and craft drones out of hundreds of different parts. Survive unknown threats in a fully destructible, procedural universe, compete against other players in different arenas or enjoy complete creative freedom in the sandbox.
Why similar: Space Sim 21%, Space 20.8%, Building 16.3%, Sandbox 12.3%, Sci-fi 8.2%
- #47 Ostranauts
66% matchMostly Positive78% of 3,152 reviews2026
Dev: Blue Bottle GamesPub: Kitfox Games
Windows
Median: 6.2 hrsMean: 32.0 hrs≥1hr: 72%
Navigate your scrappy ship through the boneyard in search of valuable parts in abandoned vessels. Use salvage to upgrade your ship, or sell it for cash to pay down your mounting debt, or restock fuel, air, or food. Fly and role-play aboard your dream spaceship in this hardcore noir space-sim.
Why similar: Space 22.2%, Space Sim 21.5%, Sandbox 16.6%, Building 11.4%, Simulation 9.3%
- #48 SpaceBourne
69% matchMostly Positive76% of 815 reviews2020
Dev: Burak Dabak
Windows
Median: 2.2 hrsMean: 9.7 hrs≥1hr: 60%
Spacebourne is an open space exploration game with Rpg elements. Its world consists of different factions at war. You as an expert pilot need to choose your side or be on no one's side and create a force of your own. Load up your weapons, Ready your ship and warp to adventure.
Why similar: Space 45.8%, Space Sim 25.6%, Simulation 20.5%, Indie 8.1%
- #49 Evochron Legacy SE
70% matchVery Positive83% of 445 reviews2016
Dev: StarWraith 3D Games LLC
Windows
Median: 1.6 hrsMean: 6.8 hrs≥1hr: 62%
Advanced Space Flight, Combat, Trading, and Exploration Simulation. Set in a vast explorable universe, Evochron Legacy offers freeform gameplay with many diverse objectives and paths to choose from.
Why similar: Space Sim 24.8%, Space 23.5%, Sandbox 15.3%, Simulation 10%, Open World 8.5%
- #50 Out of Orbit
68% matchVery Positive80% of 168 reviews2023
Dev: Case Yellow Labs
Windows
Design, build, or pirate spaceships. Build bases on planets. Explore endless randomly generated universes, travel through black holes, command your crew, survive cosmic events, collect and trade materials, battle epic bosses, and much more. The sky is the limit, literally!
Why similar: Building 20.8%, Space 20%, Sandbox 17.2%, Spaceships 16.4% ★, Space Sim 12%
- #51 Space Trash Scavenger
66% matchVery Positive84% of 525 reviews2024
Dev: SquarePlay GamesPub: Paradox Arc
Windows
Median: 3.0 hrsMean: 9.0 hrs≥1hr: 76%
Grab your jetpack and explore procedural asteroid fields, derelict spaceships and abandoned outposts. Build and automate your Space Rig to process scavenged trash. Craft, trade and fight your way home in this interstellar, open-world survival sandbox.
Why similar: Space 23.5%, Building 19.2%, Sandbox 15.4%, Space Sim 13%, Open World 8.7%
- #52 TerraTech Worlds
67% matchMixed63% of 2,287 reviews2024
Dev: Payload StudiosPub: Mythwright
Windows
Median: 7.3 hrsMean: 22.0 hrs≥1hr: 85%
TerraTech Worlds is an open world, build-craft adventure game, set on an uncharted alien world. Play solo or with friends, explore your surroundings, craft unique vehicles, construct automated bases, and battle your way through hazards and enemies to harness the power of your environment
Why similar: Building 29.5%, Sandbox 23.3%, Space 16.1%, Open World 12.5%, Multiplayer 7.5%
- #53 StarRupture
63% matchVery Positive81% of 13,247 reviews2026
Dev: Creepy Jar
Windows
Median: 6.8 hrsMean: 26.2 hrs≥1hr: 89%
StarRupture is a first-person open world base-building game with advanced combat and tons of exploration. Play alone or in a group on this sublime and ever-changing planet, extract and manage resources, create your complex industrial system and fight off hordes of alien monsters.
Why similar: Sandbox 27.5%, Open World 16.9%, Simulation 15.4%, Sci-fi 13.7%, Multiplayer 10.3%
- #54 Rebel Galaxy
67% matchVery Positive85% of 8,380 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 43.4%, Space Sim 16%, Open World 10%, Sci-fi 9.1%, Sandbox 7.2%
- #55 Astrometica
64% matchVery Positive83% of 3,181 reviews2024
Dev: BeryMeryPub: RockGame S.A.
Windows
Median: 3.8 hrsMean: 17.1 hrs≥1hr: 71%
Astrometica is a space exploration and base-building survival game. After a catastrophic event, explore vast space, gather resources, build bases, and uncover cosmic mysteries. Use advanced technology, craft tools, and discover new blueprints to survive and thrive in the unknown.
Why similar: Space Sim 34%, Space 28.6%, Open World 13.7%, Sci-fi 9.4%, Adventure 6.8%