- #1 Space Engineers
97% matchVery Positive89% of 134,498 reviews2019
Dev: Keen Software House
Windows
Median: 9.0 hrsMean: 96.5 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 Sim 28.9%, Building 15.8%, Open World 13.6%, Space 13.5%, Sandbox 12.1%
Why You'll Like It: The definitive experience for voxel-based ship construction and physics-driven engineering in space.
- #2 Avorion
96% matchVery Positive90% of 14,588 reviews2020
Dev: Boxelware
Windows · Mac · Linux
Median: 18.9 hrsMean: 99.6 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 Sim 25.7%, Voxel 14% ★, Building 13.7%, Space 11.4%, Open World 11.2%
Why You'll Like It: Offers deep procedural ship building and a vast, open-world galaxy to explore and conquer.
- #3 Empyrion - Galactic Survival
95% matchMostly Positive78% of 34,438 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 Sim 17.3%, Voxel 12.4% ★, Open World Survival Craft 11.5% ★, Building 10.4%, Space 9.1%
Why You'll Like It: Combines detailed base and ship building with survival mechanics across diverse planetary and space environments.
- #4 Starship EVO
94% matchVery Positive83% of 1,546 reviews2020
Dev: Moonfire Entertainment
Windows
Median: 1.6 hrsMean: 6.4 hrs≥1hr: 59%
Mine and craft your way to orbit, build your own starship and explore a vast, dangerous galaxy alongside your crew. For players who love a meaningful survival progression, a unique and elegant building system, and epic space-opera scale.
Why similar: Building 18.5%, Space Sim 16.9%, Space 15.8%, Voxel 11.7% ★, Sandbox 11.6%
Why You'll Like It: Focuses heavily on intricate, physics-based ship construction with a high degree of modular freedom.
- #5 StarMade
94% matchMixed68% of 2,992 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 16.4%, Voxel 13.7% ★, Sandbox 12.8%, Building 11.7%, Open World 11.7%
Why You'll Like It: A classic voxel-based space sandbox that allows for massive, custom-built capital ships in a multiplayer setting.
- #6 Stationeers
93% matchVery Positive88% of 9,306 reviews2017
Dev: RocketWerkz
Windows
Median: 9.8 hrsMean: 85.8 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: Building 25%, Space 20.9%, Sandbox 19.1%, Crafting 15.5%, Sci-fi 12.3%
Why You'll Like It: Features complex atmospheric and electrical engineering systems that appeal to players who enjoy the logic-based side of Starbase.
- #7 From the Depths
92% matchVery Positive89% of 12,853 reviews2020
Dev: Brilliant Skies Ltd.
Windows · Mac · Linux
Median: 4.2 hrsMean: 40.8 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: Voxel 24.9% ★, Building 22.2%, Sandbox 16.1%, Space 13.7%, Crafting 11.7%
Why You'll Like It: Provides unparalleled complexity in vehicle design, allowing for custom weapon and engine systems that rival Starbase's technical depth.
- #8 Cosmoteer: Starship Architect & Commander
91% matchVery Positive94% of 12,916 reviews2022
Dev: Walternate Realities
Windows
Median: 19.3 hrsMean: 41.3 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 Sim 33.2%, Building 20.6%, Space 17.4%, Sci-fi 14.1%, Simulation 5.4%
Why You'll Like It: Offers a deep ship design system where every component placement directly impacts combat performance.
- #9 Interstellar Rift
91% matchMixed68% of 1,667 reviews2020
Dev: Split PolygonPub: Iceberg Interactive
Windows
Median: 4.3 hrsMean: 35.6 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 27.5%, Building 14.3%, Open World 12.3%, Sandbox 10.2%, Space 10.2%
Why You'll Like It: A multiplayer space-sim that emphasizes ship interior design and complex station management.
- #10 Hardspace: Shipbreaker
90% matchVery Positive89% of 22,441 reviews2022
Dev: Blackbird Interactive
Windows
Median: 4.7 hrsMean: 24.0 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 Sim 20.7%, Space 19.3%, Destruction 16.1%, Sandbox 11.7%, Sci-fi 10.6%
Why You'll Like It: Provides a grounded, physics-based look at the structure and dismantling of space vessels.
- #11 Barotrauma
88% matchVery Positive94% of 90,078 reviews2023
Dev: FakeFishPub: Daedalic Entertainment
Windows · Mac · Linux
Median: 9.1 hrsMean: 56.4 hrs≥1hr: 91%
Barotrauma is a 2D co-op submarine simulator – in space, with survival horror and RPG elements. Steer your submarine, complete missions, fight monsters, fix leaks, operate machinery, man the guns and craft items, and stay alert: danger in Barotrauma doesn’t announce itself!
Why similar: Multiplayer 34.4%, Sci-fi 34.4%, Simulation 23.2%, Action 8%
Why You'll Like It: Requires deep knowledge of submarine systems and engineering to survive in a hostile, physics-driven environment.
- #12 X4: Foundations
89% matchMostly Positive80% of 30,300 reviews2018
Dev: Egosoft
Windows · Linux
Median: 4.9 hrsMean: 95.4 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 Sim 31.9%, Space 16.4%, Open World 14.9%, Sandbox 12.9%, Sci-fi 8.6%
Why You'll Like It: Delivers a deep space simulation with a complex economy and fleet management that appeals to the strategic side of Starbase.
- #13 Celestial Command
89% matchMixed62% of 705 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 26%, Space Sim 21.5%, Sandbox 14.8%, Building 12%, Simulation 9.9%
Why You'll Like It: A physics-based space simulation that focuses on modular ship building and realistic orbital mechanics.
- #14 Scrap Mechanic
85% matchVery Positive92% of 123,030 reviews2026
Dev: Axolot Games
Windows
Median: 11.5 hrsMean: 65.6 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 28.9%, Open World 20.7%, Sandbox 19%, Crafting 14.3%, Multiplayer 7.4%
Why You'll Like It: Features a robust physics engine that rewards creative engineering and complex machine building.
- #15 TerraTech
87% matchVery Positive91% of 25,032 reviews2018
Dev: Payload StudiosPub: Mythwright
Windows · Mac · Linux
Median: 7.7 hrsMean: 32.4 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 21.9%, Open World Survival Craft 18.1% ★, Open World 15.6%, Sandbox 14.8%, Robots 11.8%
Why You'll Like It: Allows for creative vehicle building with a focus on combat and resource gathering in an open-world setting.
- #16 Elite Dangerous
86% matchMostly Positive77% of 107,797 reviews2015
Dev: Frontier Developments
Windows
Median: 18.3 hrsMean: 149.0 hrs≥1hr: 89%
Take control of your own starship and blaze your trail in an ever-changing galaxy. Master the arts of combat, mining and trade or venture out into the unknown across a 1:1 scale universe.
Why similar: Space Sim 33.1%, Massively Multiplayer 16.7%, Space 14.5%, Open World 12.9%, Sci-fi 6.2%
Why You'll Like It: Provides the massive, open-world space exploration scale and flight simulation that Starbase players enjoy.
- #17 Nimbatus - The Space Drone Constructor
86% matchMostly Positive79% of 2,173 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 23.4%, Programming 15.3% ★, Space 10.1%, Building 9.4%, Robots 8.9%
Why You'll Like It: Focuses on modular construction and testing in a physics-based environment with a high degree of creative freedom.
- #18 PULSAR: Lost Colony
84% matchVery Positive90% of 5,738 reviews2021
Dev: Leafy Games
Windows · Mac · Linux
Median: 7.3 hrsMean: 16.6 hrs≥1hr: 87%
The co-op open-world space sim where everyone has a role! Pilot the ship. Reroute power. Launch nukes. Explore alien planets. Research new talents. Work together to find the Lost Colony! ...or just deliver some biscuits
Why similar: Space Sim 31%, Open World 13.9%, Space 12.9%, Robots 9.9%, Sci-fi 7.6%
Why You'll Like It: Features multiplayer ship operation that requires intense teamwork and individual system management.
- #19 Medieval Engineers
83% matchMixed52% of 7,326 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 25.2%, Sandbox 16.9%, Destruction 16.5%, Open World 16.2%, Crafting 8.3%
Why You'll Like It: Shares the same physics-based building DNA as Space Engineers, focusing on structural integrity and mechanical systems.
- #20 Boundless
82% matchMixed69% of 2,779 reviews2018
Dev: Monumental, LLC
Windows · Mac
Median: 1.1 hrsMean: 32.8 hrs≥1hr: 51%
Shape your citizen, forge your destiny and sculpt your world in this epic voxel sandbox MMO built on endless possibility.
Why similar: Massively Multiplayer 21.6%, Open World Survival Craft 15.6% ★, Voxel 14.9% ★, Open World 11.5%, Sandbox 10.5%
Why You'll Like It: A voxel-based MMO with a strong focus on building, crafting, and community-driven exploration.
- #21 Last Oasis
81% matchMixed62% of 24,230 reviews2020
Dev: Donkey Crew
Windows
Median: 17.8 hrsMean: 120.6 hrs≥1hr: 88%
Nomadic Survival MMO. Build wooden walking machines to travel to new lands. Create clans and fight for territory. Resources deplete fast, so take your sword and scavenge, pirate, and trade to stay alive.
Why similar: Massively Multiplayer 39.6%, Open World 18.7%, Building 14.6%, Sandbox 10%, Crafting 9.6%
Why You'll Like It: A massively multiplayer survival game that centers on building and maintaining mobile, wind-powered bases.
- #22 Volcanoids
81% matchVery Positive83% of 9,358 reviews2019
Dev: Volcanoid
Windows · Linux
Median: 3.9 hrsMean: 15.9 hrs≥1hr: 76%
A base-building open-world survival shooter that replaces your typical base with a giant drill. Alone or with friends, explore an island plagued by eruptions, upgrade your drill, and fight robots to uncover what's been hiding beneath the surface.
Why similar: Building 19.9%, Open World 16.4%, Sandbox 15.7%, Crafting 13.3%, FPS 11.3%
Why You'll Like It: Offers unique base-building mechanics centered around a mobile, drill-equipped ship that you must upgrade and defend.
- #23 Main Assembly
80% matchVery Positive83% of 1,355 reviews2021
Dev: Bad Yolk GamesPub: Team17
Windows
Median: 54 minMean: 7.0 hrs≥1hr: 50%
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: Programming 26.4% ★, Building 20.3%, Sandbox 16.2%, Robots 14.2%, Crafting 11.2%
Why You'll Like It: Offers advanced robotics and vehicle building tools with a powerful physics engine for complex creations.
- #24 Space Engineers 2
77% matchMostly Positive75% of 5,654 reviews2025
Dev: Keen Software House
Windows
Median: 2.0 hrsMean: 11.6 hrs≥1hr: 64%
Space Engineers 2 is a playable Early Access Alpha sandbox focused on engineering, exploration, and colonization in a fully destructible universe. Design and build ships, stations, and planetary bases while uncovering the story of Miro and Ivan Sokol. Help shape the future of the Almagest system.
Why similar: Space Sim 18.5%, Building 14.5%, Destruction 12.2%, Space 12.1%, Sandbox 11.3%
- #25 SpaceCraft
77% matchMixed64% of 2,773 reviews2026
Dev: Shiro Games
Windows
Median: 14.0 hrsMean: 54.1 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 Sim 21.4%, Massively Multiplayer 19.7%, Space 11.4%, Open World 11.2%, Sandbox 9.5%
- #26 Reassembly
78% matchVery Positive94% of 4,100 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 32.5%, Space 25.8%, Sandbox 20.9%, Open World 9.5%, Sci-fi 5.1%
Why You'll Like It: Features procedural ship building with a focus on fleet combat and tactical positioning.
- #27 StarRupture
75% matchVery Positive81% of 13,607 reviews2026
Dev: Creepy Jar
Windows
Median: 6.8 hrsMean: 27.6 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: Open World Survival Craft 24% ★, Open World 18.7%, Sandbox 14.7%, Crafting 12.6%, Sci-fi 9.8%
- #28 Starminer
76% matchMostly Positive73% of 1,894 reviews2026
Dev: CoolAndGoodGames
Windows
Median: 7.0 hrsMean: 26.4 hrs≥1hr: 82%
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 Sim 37.9%, Space 16.6%, Sandbox 16%, Open World 15.5%, Sci-fi 10%
- #29 Planet Explorers
79% matchMixed62% of 6,818 reviews2016
Dev: Pathea Games
Windows · Mac · Linux
Median: 3.5 hrsMean: 12.8 hrs≥1hr: 73%
Planet Explorers is an open world sandbox adventure RPG game set on a distant planet. The game uses a new OpenCL calculated voxel system to allow players to change the terrain in any way, create new objects such as weapons, vehicles, objects, and do it anywhere.
Why similar: Open World Survival Craft 24.2% ★, Open World 17.6%, Sandbox 17.2%, Building 11.3%, Crafting 8.5%
Why You'll Like It: An open-world survival game featuring voxel-based terrain and modular vehicle construction.
- #30 Stars End
78% matchMixed61% of 1,432 reviews2023
Dev: Reverie World StudiosPub: indie.io
Windows
Median: 2.5 hrsMean: 10.2 hrs≥1hr: 81%
Stars End is a sci-fi survival sandbox set on the wild frontier of a distant star system. Play solo or host your own server as you craft, build, and battle to survive in a galaxy shaped by danger, discovery, and your own grit.
Why similar: Massively Multiplayer 20.4%, Space Sim 16%, Open World Survival Craft 11.9% ★, Space 9.3%, Open World 8.3%
Why You'll Like It: A multiplayer survival game set in a sci-fi universe with a focus on ship and base building.
- #31 FOUNDRY
75% matchVery Positive81% of 3,960 reviews2024
Dev: Channel 3 EntertainmentPub: Paradox Interactive
Windows
Median: 7.7 hrsMean: 48.8 hrs≥1hr: 88%
Build a sophisticated robot factory optimized to perfection in an infinite voxel world. Mine and harvest resources, automate your production lines and manage complex systems while researching your way to become the galaxy’s leading robotics megacorp.
Why similar: Voxel 19.8% ★, Building 15%, Open World 13.3%, Sandbox 11.4%, Robots 10.9%
- #32 Astro Colony
73% matchVery Positive81% of 2,730 reviews2026
Dev: Terad Games
Windows
Median: 4.4 hrsMean: 16.0 hrs≥1hr: 77%
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 Sim 22.2%, Space 16.7%, Building 14.9%, Open World 10.7%, Sandbox 9.8%
- #33 Infinity: Battlescape
74% matchMostly Positive80% of 765 reviews2019
Dev: I-Novae Studios, LLC
Windows
Median: 3.0 hrsMean: 9.8 hrs≥1hr: 71%
Infinity: Battlescape is a multiplayer space combat sim supporting hundreds of players on a single server. Join one of the corporate factions and fight for domination of a seamless, true-to-scale procedural star system. Participate in massive space and planetary battles involving hundreds of ships.
Why similar: Massively Multiplayer 33.7%, Space Sim 29.4%, Space 19.1%, Simulation 7.7%, Sci-fi 6.5%
- #34 SPACERIFT: Arcanum System
73% matchMostly Positive77% of 505 reviews2020
Dev: Arcanum Team
Windows
Median: 54 minMean: 9.9 hrs≥1hr: 43%
Space. Ships. Resources. Trading. Production. Combat. Mine ore, haul cargo, and find profitable trade routes. Buy and capture ships, build your fleet, construct stations, and develop your production. Start with your first ship. Build your empire!
Why similar: Space Sim 36.1%, Open World 17.6%, Space 14.6%, Crafting 10.4%, Sci-fi 10%
- #35 TerraTech Worlds
72% matchMixed63% of 2,297 reviews2024
Dev: Payload StudiosPub: Mythwright
Windows
Median: 7.6 hrsMean: 21.8 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: Open World Survival Craft 20.6% ★, Building 17.4%, Open World 15.4%, Sandbox 14%, Crafting 11.3%
- #36 GRAV
74% matchMixed47% of 6,922 reviews2015
Dev: BitMonster, Inc.
Windows
Median: 1.7 hrsMean: 11.6 hrs≥1hr: 60%
GRAV is a sand box experience where you explore a multitude of planets, hunt strange alien creatures, build and defend outposts, craft weapons and armor, and attempt to survive against other players in a hostile environment.
Why similar: Open World Survival Craft 28.4% ★, Open World 19%, Sandbox 13.8%, Space 11.3%, Crafting 9.3%
- #37 Astrometica
70% matchVery Positive82% of 3,211 reviews2024
Dev: BeryMeryPub: RockGame S.A.
Windows
Median: 4.1 hrsMean: 19.3 hrs≥1hr: 72%
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 36.2%, Open World 15.9%, Space 13.2%, Crafting 10.3%, Open World Survival Craft 10.2% ★
- #38 Stormworks: Build and Rescue
70% matchVery Positive91% of 60,190 reviews2020
Dev: Geometa
Windows · Mac
Median: 17.4 hrsMean: 113.9 hrs≥1hr: 91%
Join a world where you design, create and pilot your own air sea rescue service. Release your inner hero as you battle fierce storms out at sea to rescue those in need.
Why similar: Programming 22.1% ★, Building 18.7%, Sandbox 16.7%, Open World 16%, Open World Survival Craft 15.6% ★
- #39 EVE Online
71% matchMostly Positive73% of 39,560 reviews2010
Dev: Fenris Creations
Windows · Mac
Median: 3.0 hrsMean: 139.3 hrs≥1hr: 72%
Over 20 years of legendary space battles! Explore a massive living universe of danger and opportunity in a challenging and highly rewarding space adventure. Fight, trade, build, and connect with a universe driven and shaped directly by players.
Why similar: Space Sim 29.2%, Massively Multiplayer 19.5%, Open World 13.4%, Space 13.2%, Sandbox 9.7%
- #40 ASTRONEER
68% matchVery Positive92% of 139,497 reviews2019
Dev: System Era Softworks
Windows
Median: 11.5 hrsMean: 44.7 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: Open World Survival Craft 21.1% ★, Open World 16.8%, Space 16.4%, Building 11.7%, Sandbox 10.7%
- #41 Executive Assault 2
68% matchVery Positive83% of 1,767 reviews2023
Dev: Hesketh Studios Ltd
Windows · Mac
Median: 3.7 hrsMean: 8.1 hrs≥1hr: 76%
The RTS/FPS phenomenon has moved into space! Build your base on an asteroid, command fleets of starships for epic battles, pilot fighters, mine and trade resources, assemble robots to defend or assault other stations. Take sole command or share the glory as you fight for control of the quadrant.
Why similar: Space Sim 35.1%, Building 19%, Space 13.5%, FPS 8.9%, Robots 7.7%
- #42 Archean
68% matchVery Positive88% of 252 reviews2024
Dev: batcholi
Windows · Linux
Gather resources, craft components, build vehicles, and code their logic in a physics-driven engineering sandbox and full scale space sim.
Why similar: Space Sim 21.7%, Programming 17.5% ★, Building 12.8%, Open World 10.8%, Space 10.2%
- #43 SpaceBourne 2
66% matchMostly Positive76% of 5,166 reviews2025
Dev: Burak Dabak
Windows
Median: 2.6 hrsMean: 11.1 hrs≥1hr: 72%
Embark on a journey to greatness. Get ready for adrenaline-fueled battles and a chance to claim your place in the galaxy. Grab the controls of your ship, gear up for the fight, and unleash your ambition to conquer and build a new empire in the vastness of space.
Why similar: Space Sim 43.1%, Open World 17.5%, Space 15.1%, Building 13.7%, Crafting 6.4%
- #44 Kerbal Space Program 2
69% 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: Space Sim 25%, Building 17.1%, Space 15.1%, Sandbox 13.3%, Open World 12.2%
- #45 The Last Starship
65% matchMostly Positive75% of 1,705 reviews2026
Dev: Introversion Software
Windows · Mac
Median: 6.1 hrsMean: 12.3 hrs≥1hr: 81%
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 Sim 33.6%, Building 17.8%, Space 15.8%, Sandbox 14.3%, Sci-fi 9.3%
- #46 Star Crafter
67% matchMostly Positive70% of 110 reviews2025
Dev: Tbjbu2
Windows
A space survival crafting mining base building and star system building game. Craft rockets to create planets and Dyson Rings, mine and craft advanced materials, terraform the terrain, manage electricity, farm food, and more as you watch the star system evolve into stunning, ever-changing views.
Why similar: Open World Survival Craft 17.9% ★, Voxel 16% ★, Space 12.9%, Crafting 10.2%, Building 10.1%
- #47 Space Trash Scavenger
66% matchVery Positive83% of 528 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: Open World Survival Craft 17.2% ★, Space Sim 15.6%, Space 12.3%, Building 12.1%, Open World 11.5%
- #48 Eco
67% matchVery Positive81% of 14,085 reviews2018
Dev: Strange Loop Games
Windows
Median: 16.7 hrsMean: 91.6 hrs≥1hr: 88%
Build a civilization of real people, working together to advance society and stop a meteor, all without destroying the ecosystem in the process.
Why similar: Open World Survival Craft 27.5% ★, Open World 22.3%, Sandbox 17.7%, Crafting 16.8%, Multiplayer 8.1%
- #49 Dyson Sphere Program
64% matchOverwhelmingly Positive97% of 91,831 reviews2021
Dev: Youthcat StudioPub: Gamirror Games
Windows
Median: 13.0 hrsMean: 76.0 hrs≥1hr: 84%
Build the most efficient intergalactic factory in space simulation strategy game Dyson Sphere Program! Harness the power of stars, collect resources, plan and design production lines and develop your interstellar factory from a small space workshop to a galaxy-wide industrial empire.
Why similar: Space 21.4%, Building 19.4%, Space Sim 17.2%, Open World 16%, Sandbox 11.9%
- #50 Juno: New Origins
65% matchVery Positive89% of 3,554 reviews2023
Dev: Jundroo, LLC
Windows · Mac
Median: 1.1 hrsMean: 13.6 hrs≥1hr: 52%
Bring to life anything you can imagine from rockets and airplanes to cars and more. Automate them with a visual programming language. Explore 3D planets and make your own. Share your creations online. Complete contracts, conquer milestones, and unlock technology in the newly added Career Mode.
Why similar: Space Sim 27.5%, Programming 19.6% ★, Building 15.5%, Space 10.6%, Open World 10.6%
- #51 Wayward Terran Frontier: Zero Falls
69% matchMixed67% of 544 reviews2016
Dev: Reason Generator Inc.
Windows
2d space combat like no other. From the perspective of a single crew member, explore the fully destructible interior of any ship in a massive living world. Engage in space combat with no hitpoints where you know your enemy is dead when you see them fall out of their ship into the cold dark of space.
Why similar: Space Sim 29.5%, Open World 14.1%, Sandbox 11.8%, Space 11.7%, Building 8.2%