- #1 ΔV: Rings of Saturn
97% 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 Sim 24.4% ★, Space 17%, Physics 11.4%, Open World 9.7%, Sci-fi 9.7%
Why You'll Like It: Features highly realistic physics-based mining and ship management that mirrors the core gameplay loop of Jitter.
- #2 Space Haven
96% matchVery Positive86% of 9,719 reviews2020
Dev: Bugbyte Ltd.
Windows · Mac · Linux
Median: 4.3 hrsMean: 20.2 hrs≥1hr: 72%
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 Sim 24.5% ★, Base Building 14.9%, Space 14.6%, Sandbox 12.6%, Open World 10.7%
Why You'll Like It: Focuses on the management and survival of a crew aboard a custom-built ship, emphasizing internal systems and resource scarcity.
- #3 Stardeus
96% matchVery Positive87% of 1,529 reviews2022
Dev: Kodo LinijaPub: Paradox Arc
Windows · Mac · Linux
Median: 8.7 hrsMean: 22.6 hrs≥1hr: 77%
Stardeus is a deep colony sim set on a broken starship manned by drones and hibernating human survivors. As the AI, have your drones repair your ship, save your crew and travel the stars in this beautiful simulation.
Why similar: Space Sim 24% ★, Space 15.8%, Base Building 14.9%, Sandbox 11.9%, Open World 11.7%
Why You'll Like It: Allows you to play as an AI managing a spaceship, focusing on automation, repair, and survival in a procedurally generated universe.
- #4 Cosmoteer: Starship Architect & Commander
95% matchVery Positive95% of 12,431 reviews2022
Dev: Walternate Realities
Windows
Median: 19.3 hrsMean: 40.4 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 33.4% ★, Space 20.6%, Sci-fi 17.4%, Exploration 7.5%, Pixel Graphics 7.1%
Why You'll Like It: Offers deep ship-building mechanics where physics and internal layout directly impact your ship's combat and survival capabilities.
- #5 Space Trash Scavenger
94% matchVery Positive84% of 514 reviews2024
Dev: SquarePlay GamesPub: Paradox Arc
Windows
Median: 3.0 hrsMean: 9.2 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 Sim 20% ★, Space 18.7%, Sandbox 13.9%, Open World 13.6%, Base Building 12.3%
Why You'll Like It: Focuses on scavenging and survival in space, requiring players to manage their ship's systems while exploring debris fields.
- #6 Wayward Terran Frontier: Zero Falls
94% matchMixed68% of 536 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 30.9% ★, Space 14.5%, Open World 13.7%, Sandbox 13.7%, Sci-fi 7.5%
Why You'll Like It: Features complex ship-building and physics-based combat that aligns well with the sandbox nature of Jitter.
- #7 Hardspace: Shipbreaker
93% matchVery Positive89% of 21,702 reviews2022
Dev: Blackbird Interactive
Windows
Median: 4.7 hrsMean: 23.9 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 25.2%, Space Sim 23.1% ★, Physics 15.9%, Sandbox 14.3%, Sci-fi 14.3%
Why You'll Like It: Centers on the tactile, physics-based interaction with ship components, capturing the feeling of working in a dangerous industrial space setting.
- #8 Barotrauma
92% matchVery Positive94% of 84,235 reviews2023
Dev: FakeFishPub: Daedalic Entertainment
Windows · Mac · Linux
Median: 8.9 hrsMean: 54.3 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: Sci-fi 55.6%, 2D 26.8%, Action 12.3%, Singleplayer 5.3%
Why You'll Like It: Provides a tense, physics-driven experience where managing ship systems and crew survival in a hostile environment is paramount.
- #9 Avorion
91% matchVery Positive90% of 14,288 reviews2020
Dev: Boxelware
Windows · Mac · Linux
Median: 18.6 hrsMean: 98.8 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 34.4% ★, Space 18%, Sandbox 15.7%, Open World 13.9%, Sci-fi 10%
Why You'll Like It: Combines ship building with open-world exploration, allowing for highly customizable vessels that can be upgraded and repaired.
- #10 Starship EVO
91% matchVery Positive84% of 1,210 reviews2020
Dev: Moonfire Entertainment
Windows
Median: 1.3 hrsMean: 5.8 hrs≥1hr: 55%
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: Space 23.3%, Space Sim 21.8% ★, Sandbox 16.2%, Open World 9.7%, Sci-fi 8.6%
Why You'll Like It: Offers a highly detailed ship-building sandbox with a focus on functional components and realistic physics.
- #11 Stationeers
90% matchVery Positive88% of 8,897 reviews2017
Dev: RocketWerkz
Windows
Median: 9.8 hrsMean: 81.9 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: Base Building 23.4%, Space 23.4%, Sandbox 20%, Physics 18.8%, Sci-fi 14.3%
Why You'll Like It: A hardcore engineering game that requires precise management of atmospheric, electrical, and mechanical systems for survival.
- #12 Objects in Space
89% matchMixed52% of 612 reviews2019
Dev: Flat Earth GamesPub: 505 Games
Windows · Mac · Linux
Median: 2.2 hrsMean: 6.6 hrs≥1hr: 71%
Objects in Space is a retro space game centred on 2D point-and-click stealth action in a massive open world. Players have their own customisable ships and can meet people, become a trader, bounty hunter, explorer, scavenger or all of them at once.
Why similar: Space 32.2%, Space Sim 30.4% ★, Open World 8.3%, Adventure 8.3%, Sci-fi 8%
Why You'll Like It: A hard sci-fi simulation that emphasizes the technical and often lonely reality of operating a ship in deep space.
- #13 Starcom: Unknown Space
86% matchVery Positive93% of 4,082 reviews2024
Dev: Wx3 Labs, LLC
Windows
Median: 7.9 hrsMean: 16.2 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 Sim 27.2% ★, Space 21.9%, Open World 13.3%, Sci-fi 8%, Exploration 7.4%
Why You'll Like It: Focuses on exploration and ship modularity, allowing you to build and upgrade your vessel as you uncover the mysteries of space.
- #14 Genesis Alpha One Deluxe Edition
88% matchMixed68% of 2,477 reviews2020
Dev: Radiation BluePub: Team17 Digital Ltd
Windows
Median: 54 minMean: 8.4 hrs≥1hr: 49%
Hyperjump into the dark recesses of space with Genesis Alpha One - a roguelike FPS where you must build, maintain and navigate your ship through a galaxy filled with hostile alien and human threats. Explore, create and survive the militarized space race in order to secure humanity’s future.
Why similar: Space Sim 34.8% ★, Base Building 18.8%, Space 17.8%, Open World 15.7%, Sci-fi 12.9%
Why You'll Like It: Blends ship building, resource management, and survival as you explore space to save humanity.
- #15 Celestial Command
89% 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 32.8%, Space Sim 23.2% ★, Sandbox 17.7%, Sci-fi 9.9%, Open World 5.2%
Why You'll Like It: A space-sim that emphasizes realistic physics and modular ship construction for exploration and combat.
- #16 Reassembly
87% 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 32%, Sandbox 24.1%, Open World 9.2%, Sci-fi 6.5%, Top-Down 6.4%
Why You'll Like It: A sandbox game where you build ships from modular parts and engage in physics-based combat in a vast, procedurally generated galaxy.
- #17 Astrometica
86% matchVery Positive83% of 2,970 reviews2024
Dev: BeryMeryPub: RockGame S.A.
Windows
Median: 4.9 hrsMean: 17.8 hrs≥1hr: 73%
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 37.2% ★, Space 16.1%, Open World 15%, Base Building 13.6%, Sci-fi 8.9%
Why You'll Like It: A space survival game that requires players to build and maintain their base and ship while navigating a dangerous asteroid field.
- #18 PULSAR: Lost Colony
85% matchVery Positive90% of 5,694 reviews2021
Dev: Leafy Games
Windows · Mac · Linux
Median: 7.5 hrsMean: 16.8 hrs≥1hr: 88%
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 39.2% ★, Space 19.5%, Open World 16.5%, Sci-fi 11.8%, Exploration 8.2%
Why You'll Like It: Focuses on the collaborative management of a starship, where every player must handle specific systems to keep the vessel operational.
- #19 Starbound
84% 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: Sandbox 26.3%, Space 21.5%, Open World 15.1%, Pixel Graphics 8.9%, Exploration 8%
Why You'll Like It: Features pixel-graphics exploration and survival, offering a similar aesthetic and sense of discovery to Jitter.
- #20 The Last Starship
82% matchMostly Positive75% of 1,419 reviews2026
Dev: Introversion Software
Windows · Mac
Median: 5.6 hrsMean: 10.4 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 26.3% ★, Space 14.7%, Base Building 13.4%, Sandbox 12.4%, Sci-fi 8.9%
Why You'll Like It: Focuses on the design and management of a starship, requiring players to balance systems and crew needs for survival.
- #21 Shortest Trip to Earth
84% matchMostly Positive77% of 1,426 reviews2019
Dev: Interactive Fate
Windows · Linux
Median: 3.2 hrsMean: 6.6 hrs≥1hr: 88%
Shortest Trip to Earth is a roguelike spaceship simulator focused on exploration, ship management and tactical battles. Embark on a perilous journey across the universe with nuclear missiles, armed crew and a cat.
Why similar: Space Sim 33.4% ★, Space 28.6%, Sci-fi 16.4%, Exploration 10.9%, 2D 4.3%
Why You'll Like It: A challenging survival game where managing your ship's crew and systems is essential to surviving a perilous journey.
- #22 Empyrion - Galactic Survival
83% matchMostly Positive79% of 34,087 reviews2020
Dev: Eleon Game Studios
Windows
Median: 6.3 hrsMean: 76.7 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 28.2% ★, Space 17.6%, Open World 13.4%, Sandbox 12.5%, Physics 11%
Why You'll Like It: Provides a comprehensive survival experience that includes building, exploration, and managing ships across different planets and space.
- #23 Void Crew
80% matchVery Positive87% of 8,134 reviews2024
Dev: Hutlihut GamesPub: Focus Entertainment
Windows
Median: 9.0 hrsMean: 16.4 hrs≥1hr: 94%
Void Crew is a Chaotic, Co-op Roguelite game for 1 to 6 players: Outfit your spaceship and crew for thrilling quests, brave fierce enemies in Space Battles... and try not to panic!
Why similar: Space Sim 50% ★, Space 20%, Sci-fi 7.6%, Action-Adventure 6.3%, Exploration 5.7%
Why You'll Like It: A co-op experience that centers on the chaotic and rewarding management of a ship's various stations during combat and exploration.
- #24 FTL: Faster Than Light
81% matchOverwhelmingly Positive95% of 77,568 reviews2012
Dev: Subset Games
Windows · Mac · Linux
Median: 7.1 hrsMean: 33.7 hrs≥1hr: 89%
This "spaceship simulation roguelike-like" allows you to take your ship and crew on an adventure through a randomly generated galaxy filled with glory and bitter defeat.
Why similar: Space 36.3%, Space Sim 26.4% ★, Sci-fi 17.6%, Top-Down 7.3%, Indie 3.5%
Why You'll Like It: The definitive ship management roguelike that emphasizes the importance of crew coordination and system repair under pressure.
- #25 Star Valor
81% 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 27.9%, Sandbox 19.5%, Open World 15.9%, Sci-fi 10.6%, Exploration 8.5%
Why You'll Like It: An action-oriented sandbox RPG that features deep ship customization and exploration in a procedurally generated universe.
- #26 Interstellar Rift
82% matchMixed68% of 1,655 reviews2020
Dev: Split PolygonPub: Iceberg Interactive
Windows
Median: 4.2 hrsMean: 33.2 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 34.6% ★, Space 15.2%, Open World 14.4%, Sandbox 14.2%, Sci-fi 8.7%
Why You'll Like It: A ship-building and exploration game that allows for complex interior design and multi-crew management.
- #27 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 Sim 24.9% ★, Space 13.8%, Base Building 12.6%, Sandbox 11.5%, Open World 10.9%
Why You'll Like It: The gold standard for physics-based ship building and engineering in a sandbox space environment.
- #28 VoidExpanse
79% matchMostly Positive71% of 760 reviews2015
Dev: AtomicTorch Studio
Windows · Mac · Linux
Median: 3.8 hrsMean: 6.1 hrs≥1hr: 93%
Explore the vast reaches of VoidExpanse -- mine asteroids, upgrade your ship, trade, complete missions, advance your character and survive fast-paced combat with hostile aliens and mercenaries in the rich and exciting Sci-Fi universe of VoidExpanse!
Why similar: Space 35.1%, Open World 18.4%, Sandbox 16.2%, Sci-fi 13.1%, Top-Down 9.1%
Why You'll Like It: An open-world space RPG that focuses on exploration, mining, and ship progression in a sci-fi setting.
- #29 Sector Space
76% matchVery Positive96% of 53 reviews2025
Dev: Robin M. FarrellPub: Outer Vision Games
Windows · Linux
Explore a procedurally generated galaxy, mine asteroids, refine minerals, colonize planets, build stations, deploy drones, salvage rare items, construct gear, level up, improve your ship, assemble a fleet, engage in combat, and take on the void.
Why similar: Space Sim 46.5% ★, Exploration 9.2%, Top-Down 7.9%, Space 7.9%, Pixel Graphics 7.5%
- #30 3030 Deathwar Redux - A Space Odyssey
78% 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 21.5%, Space Sim 19.8% ★, Open World 12.1%, Sandbox 9.4%, Sci-fi 9.3%
Why You'll Like It: Combines adventure and space exploration with a retro aesthetic that captures the spirit of classic sci-fi games.
- #31 Starcom: Nexus
77% matchVery Positive91% of 2,274 reviews2019
Dev: Wx3 Labs, LLC
Windows · Linux
Median: 3.8 hrsMean: 13.6 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 29.1%, Space Sim 21.6% ★, Sci-fi 12.1%, Open World 10.9%, Exploration 7.8%
- #32 Space Engineers 2
75% 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 Sim 22.8% ★, Space 17.1%, Sandbox 15.2%, Physics 12.4%, Open World 12.4%
- #33 Astronomics
74% matchVery Positive90% of 645 reviews2025
Dev: Numizmatic
Windows
Median: 8.9 hrsMean: 14.4 hrs≥1hr: 85%
Top-down action and space exploration meet asteroid mining automation! Navigate to randomly generated asteroids passing by and start mining. Impress your employer, upgrade your equipment, fight off pirates and save up for that ticket to Earth so you can finally come home... for the very first time.
Why similar: Space 30.7%, Physics 19.7%, Top-Down 13.2%, Exploration 12.1%, Sci-fi 11.5%
- #34 Ostranauts
76% matchMostly Positive80% of 2,398 reviews2020
Dev: Blue Bottle GamesPub: Kitfox Games
Windows
Median: 5.1 hrsMean: 26.8 hrs≥1hr: 71%
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 Sim 29% ★, Space 16.7%, Sandbox 13.6%, Open World 12.2%, Exploration 11.5%
- #35 Into the Stars
78% matchMixed41% of 537 reviews2016
Dev: Fugitive GamesPub: Iceberg Interactive
Windows
Median: 3.2 hrsMean: 4.3 hrs≥1hr: 80%
Take the role of Captain in this Space Survival Simulation as you explore a massive star system in search of a new home for humanity. Outfit your ship, hand pick your crew and set off on a journey through an open-world where you must scavenge resources, shelter civilians and outrun a hostile alien force.
Why similar: Space 72%, Adventure 10.9%, Action 8.7%, Indie 8.4%
Why You'll Like It: A strategy-simulation game where you manage a colony ship, focusing on resource management and survival during a long-distance voyage.
- #36 Cosmic Miners
75% matchMixed58% of 60 reviews2025
Dev: bitByte Games
Windows
Explore asteroid fields, trade rare resources, and upgrade your ship in Cosmic Miners. Navigate faction alliances, complete missions, and rise through the ranks in a dynamic space adventure where your choices shape your path to cosmic power.
Why similar: Space Sim 37.5% ★, Space 18%, Open World 11.8%, Sci-fi 11.6%, Combat 7.8%
- #37 Landinar: Into the Void
77% matchMixed57% of 243 reviews2019
Dev: Convoy Games
Windows
Median: 2.6 hrsMean: 6.6 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 Sim 31.3% ★, Space 23.2%, Open World 11.2%, Sandbox 10%, Sci-fi 6.9%
- #38 Between the Stars
73% matchMostly Positive74% of 2,427 reviews2024
Dev: Isolated Games
Windows
Median: 54 minMean: 8.9 hrs≥1hr: 49%
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 Sim 31.8% ★, Space 26.7%, Sandbox 10.3%, Sci-fi 9.3%, Open World 7.1%
- #39 Astrometica: Prologue
72% matchVery Positive90% of 1,281 reviews2024
Dev: BeryMeryPub: RockGame S.A.
Windows
Median: 1.1 hrsMean: 3.1 hrs≥1hr: 53%
Astrometica: Prologue is the free game about surviving in space. You need to use your skills and tools to stay alive. There are many challenges to face, and you need to fight to survive. You also need to build a new base in space.
Why similar: Space Sim 33.4% ★, Base Building 16.8%, Space 15.2%, Open World 13.8%, Sci-fi 8.2%
- #40 The Last Caretaker
71% matchVery Positive85% of 9,793 reviews2025
Dev: Channel37 Ltd
Windows
Median: 18.8 hrsMean: 30.9 hrs≥1hr: 93%
Explore a drowned Earth, restore lost systems, and raise the last human seeds in this first-person survival-crafting adventure. Build, scavenge, defend, and launch humanity back to the stars.
Why similar: Base Building 19.9%, Sandbox 17.4%, Open World 17.3%, Physics 14.7%, Sci-fi 12.1%
- #41 Transcendence
74% matchVery Positive88% of 221 reviews2015
Dev: Kronosaur Productions
Windows
Explore the farthest reaches of Human Space in this open-world space adventure. Compelled to journey to the Galactic Core by a mysterious hyperintelligence, you must fight your way through dozens of star systems teeming with clashing empires, expansionist AIs, and fearsome xenophobes.
Why similar: Space Sim 24.9% ★, Space 21.5%, Open World 14.2%, Sci-fi 10%, Exploration 8.3%
- #42 Craterbound
73% matchMixed54% of 99 reviews2022
Dev: Daniel Marquez
Windows
Crash-land onto a unique and hostile alien world and begin your fight to survive. Face its inhabitants, upgrade your technology, create outposts & bases, and find a way to repair your ship. Explore the beautifully strange terrain, all while blasting and crafting your way off of the planet.
Why similar: Space Sim 21.1% ★, Space 15.6%, Base Building 13.2%, Open World 12.7%, Sandbox 9%
- #43 Out of Orbit
71% matchVery Positive80% of 125 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: Space 18.2%, Base Building 15.7%, Sandbox 13.2%, Open World 12.5%, Exploration 7.7%
- #44 Astrox Imperium
72% 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 Sim 32.8% ★, Space 30%, Sandbox 14.3%, Open World 12.1%, Sci-fi 6.7%
- #45 Spaceflight Simulator
69% 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 Sim 36.1% ★, Space 19.2%, Sandbox 17.3%, Exploration 7.1%, Physics 6.5%
- #46 Keplerth
70% matchVery Positive85% of 4,121 reviews2022
Dev: TAROPub: Gamirror Games
Windows
Median: 8.0 hrsMean: 16.2 hrs≥1hr: 85%
Welcome to Keplerth! Try to survive on a hostile alien planet in this 2D sandbox RPG, where you can choose to live alone or fight side by side with your friends in the online multiplayer mode. Survive, build, farm, fight, and explore your way to victory in this open-world adventure!
Why similar: Sandbox 22.7%, Open World 20.2%, Sci-fi 13.8%, Exploration 11.5%, Base Building 10.1%
- #47 Breathedge
69% matchVery Positive82% of 16,026 reviews2021
Dev: RedRuins SoftworksPub: HypeTrain Digital
Windows
Median: 3.7 hrsMean: 9.2 hrs≥1hr: 87%
Survive in outer space! Together with your immortal chicken, discover the truth behind your sudden spaceship crash. Craft tools, pilot vehicles, and even control space stations to survive and explore the wreckage.
Why similar: Space 24.8%, Base Building 18.4%, Sandbox 17.4%, Sci-fi 11.9%, Open World 10.3%
- #48 Battlevoid: Harbinger
71% matchMostly Positive79% of 1,057 reviews2016
Dev: Bugbyte Ltd.
Windows · Mac · Linux
Median: 1.8 hrsMean: 11.0 hrs≥1hr: 56%
Battlevoid: Harbinger is a hard sci-fi space exploration game blending roguelike, turn-based, star map strategy, and real-time space battles. You are a young commander venturing out into enemy territories, to unknown galaxies, never knowing what you will face as you jump out from hyperspace.
Why similar: Space 54.8%, Sci-fi 11.5%, Open World 9.8%, Pixel Graphics 6.9%, Action 5.9%
- #49 Duskers
70% matchVery Positive90% of 2,739 reviews2016
Dev: Misfits Attic
Windows · Mac · Linux
Median: 1.5 hrsMean: 10.5 hrs≥1hr: 59%
Pilot drones into derelict spaceships to find the means to survive and piece together how the universe became a giant graveyard.
Why similar: Space 49.1%, Exploration 21.6%, Sci-fi 20.2%, 2D 9.1%
- #50 Final Upgrade
69% matchMostly Positive77% of 451 reviews2022
Dev: TaosX
Windows
Median: 2.9 hrsMean: 12.2 hrs≥1hr: 67%
Help humanity to spread throughout the cosmos by exploring new worlds, building space factories and setting up trade routes. Research advanced technologies to increase efficiency and unlock new paths of development. Fight off other artificial intelligences in your goal to reach the Final Upgrade!
Why similar: Space Sim 23% ★, Space 17.7%, Base Building 16.1%, Open World 13.1%, Sandbox 12%
- #51 BossConstructor
70% matchMostly Positive73% of 217 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 38.1%, Physics 12.4%, Sci-fi 10.1%, Action 9.2%, Top-Down 8.9%
- #52 StarRupture
64% matchVery Positive81% of 10,861 reviews2026
Dev: Creepy Jar
Windows
Median: 6.6 hrsMean: 18.9 hrs≥1hr: 88%
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: Base Building 25%, Open World 20.4%, Sandbox 19.3%, Sci-fi 14.2%, Exploration 10%
- #53 Astro Colony
67% matchVery Positive82% of 2,509 reviews2022
Dev: Terad Games
Windows
Median: 4.7 hrsMean: 16.3 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 Sim 22.9% ★, Base Building 22.2%, Space 20.3%, Sandbox 11.5%, Open World 10.6%
- #54 Nimbatus - The Space Drone Constructor
67% matchMostly Positive79% of 2,144 reviews2020
Dev: Stray Fawn StudioPub: Stray Fawn Publishing
Windows · Mac · Linux
Median: 3.0 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 29.9% ★, Space 15.3%, Sandbox 10.2%, Sci-fi 10.1%, Open World 9.3%
- #55 Prospector
66% matchMostly Positive72% of 149 reviews2025
Dev: Loonworks Games
Windows
Land on a distant planet in this chill resource management game. Harvest alien resources, build and automate machinery, uncover secrets across the stars and strike shipping deals with distant colonies for exclusive rewards!
Why similar: Base Building 18%, Space 16.5%, Sandbox 16.1%, Open World 15.1%, Sci-fi 9.6%
- #56 XenoHaven
65% matchVery Positive86% of 64 reviews2025
Dev: Miniverse GamePub: OKJOY
Windows
In XenoHaven, gather resources to build shelters, enslave alien beasts to work for you, and run restaurants and shops. Delve into dark underground dungeons, defeat swarming insectoids and mighty bosses, and craft powerful gear to conquer the alien world.
Why similar: Base Building 19.4%, Open World 18.8%, Sandbox 18.6%, Space 12.8%, Sci-fi 10.2%
- #57 Astrox: Hostile Space Excavation
68% matchVery Positive84% of 454 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 Sim 29.5% ★, Space 29.4%, Sandbox 16.7%, Open World 13.8%, Adventure 5.4%
- #58 Gaia Beyond
67% matchMostly Positive76% of 258 reviews2020
Dev: Warp Turtle
Windows
Gaia Beyond is a handcrafted 2D Action-RPG, an exploration mix built around the core features fighting, mining and trading. Your decisions are footprints within a vast non-linear solar system. Forge alliances among numerous factions and develop relations with hundreds of NPCs.
Why similar: Space Sim 29% ★, Space 15.5%, Open World 12.3%, Sci-fi 9.9%, Physics 9.6%
- #59 Starship Theory
68% matchMixed50% of 1,100 reviews2017
Dev: Reconnect Software
Windows · Mac · Linux
Median: 7.4 hrsMean: 15.5 hrs≥1hr: 78%
Starship Theory is a ship building survival game. Mine and trade to gather resources. Plan and construct new upgrades. Train and manage crew. Fight to survive.
Why similar: Base Building 39.1%, Space 35.5%, Sci-fi 15.3%, 2D 6%, Indie 4.1%