- #1 ASTRONEER
97% matchVery Positive92% of 138,510 reviews2019
Dev: System Era Softworks
Windows
Median: 11.5 hrsMean: 44.3 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 30%, Multiplayer 14.2%, Open World 13.5%, Sandbox 11.8%, Exploration 9.2%
- #2 Lodestar
96% matchMostly Positive72% of 78 reviews2023
Dev: Edenic Era LLC
Windows
Lodestar sends you and your squad of friends on your own space odyssey. Traverse multiple planets in a journey to get home without losing yourself or your ship to the perils of the unknown! Solve puzzles, gather resources, mine asteroids, and survive... with your own oh-so welcoming AI sidekick!
Why similar: Space 24%, Online Co-Op 20.4%, Sci-fi 13.1%, Multiplayer 11.9%, Exploration 8.9%
- #3 Stars End
96% matchMixed61% of 1,423 reviews2023
Dev: Reverie World StudiosPub: indie.io
Windows
Median: 2.5 hrsMean: 10.3 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: Space 18.5%, Online Co-Op 14%, Multiplayer 9.9%, Sci-fi 8.4%, Sandbox 8.3%
- #4 The Planet Crafter
94% matchOverwhelmingly Positive96% of 71,525 reviews2024
Dev: Miju Games
Windows
Median: 21.5 hrsMean: 38.3 hrs≥1hr: 91%
A space survival open world terraforming crafting game, designed for 1 to 10 players. Alter the ecosystem of an inhospitable planet to render it habitable for humanity. Survive, gather resources, and build your base. Then, generate oxygen, warmth, and pressure to create a brand new biosphere.
Why similar: Space 25.1%, Online Co-Op 20.6%, Sandbox 11.6%, Sci-fi 11.6%, Open World 11.1%
- #5 Starship EVO
95% matchVery Positive84% of 1,485 reviews2020
Dev: Moonfire Entertainment
Windows
Median: 1.6 hrsMean: 6.4 hrs≥1hr: 58%
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 36.8%, Sandbox 16.1%, Sci-fi 11.2%, Action 11%, Adventure 9.7%
- #6 POLARIS™
94% matchMixed57% of 80 reviews2025
Dev: POLARIS™ TeamPub: Variable State
Windows
Team up and take flight in this sci-fi co-op shooter with fully destructible environments. Soar through dynamic open levels using powerful abilities, master advanced weapons and vehicles, and lay waste to the armies of a hostile colonizing threat - defend your home worlds!
Why similar: Extraction Shooter 26.4% ★, Online Co-Op 13.8%, Space 13.5%, Sci-fi 7.6%, Multiplayer 7%
- #7 PULSAR: Lost Colony
93% matchVery Positive90% of 5,719 reviews2021
Dev: Leafy Games
Windows · Mac · Linux
Median: 7.4 hrsMean: 16.7 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 23.1%, Online Co-Op 12.7%, Sci-fi 12.6%, Open World 11%, Multiplayer 10.3%
- #8 SpaceCraft
91% matchMixed67% of 2,264 reviews2026
Dev: Shiro Games
Windows
Median: 13.9 hrsMean: 37.2 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 24.2%, Sci-fi 13.2%, Sandbox 12.1%, Multiplayer 10.6%, Open World 10.3%
- #9 Stationeers
92% matchVery Positive88% of 9,110 reviews2017
Dev: RocketWerkz
Windows
Median: 9.9 hrsMean: 83.8 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: Space 36.3%, Sandbox 20.1%, Sci-fi 20%, Multiplayer 16.2%, Co-op 7.4%
- #10 Void Crew
91% matchVery Positive86% of 8,357 reviews2024
Dev: Hutlihut GamesPub: Focus Entertainment
Windows
Median: 9.1 hrsMean: 16.7 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 20.2%, Online Co-Op 14.3%, Multiplayer 12.8%, Sci-fi 10.1%, PvE 9.2%
- #11 Astro Colony
90% matchVery Positive81% of 2,654 reviews2026
Dev: Terad Games
Windows
Median: 4.5 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 38.5%, Multiplayer 15.2%, Sandbox 13.6%, Open World 10.8%, Adventure 7.4%
- #12 Planetaries
89% matchMixed58% of 226 reviews2024
Dev: EY-Studio
Windows
Experience a vast Sci-fi open-world survival TD game set on a distant planet deep in the universe. Craft, build, mine, trade, explore, and survive in this alien world. Collect Data and defend against waves of enemies seeking to banish you. Enjoy the adventure in Singleplayer or Multiplayer.
Why similar: Online Co-Op 18.4%, Multiplayer 11.4%, Sandbox 11.3%, Sci-fi 11.2%, Open World 11.1%
- #13 Astrometica
87% matchVery Positive83% of 3,131 reviews2024
Dev: BeryMeryPub: RockGame S.A.
Windows
Median: 3.7 hrsMean: 16.6 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 40.4%, Open World 21.2%, Sci-fi 20.2%, Adventure 12.1%, Exploration 6.1%
- #14 TerraTech Worlds
88% matchMixed63% of 2,256 reviews2024
Dev: Payload StudiosPub: Mythwright
Windows
Median: 7.3 hrsMean: 21.6 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: Sandbox 15.6%, Space 14.7%, Open World 12.4%, Multiplayer 12.4%, Exploration 9.5%
- #15 Planet Explorers
89% matchMixed62% of 6,817 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: Sandbox 26.5%, Open World 19.7%, Multiplayer 14.3%, Sci-fi 10.2%, Exploration 9.7%
- #16 StarRupture
84% matchVery Positive81% of 12,866 reviews2026
Dev: Creepy Jar
Windows
Median: 6.7 hrsMean: 24.2 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: Online Co-Op 16.3%, Sci-fi 14.4%, Sandbox 14.1%, Multiplayer 13.1%, Open World 12.9%
- #17 Cubic Odyssey
85% matchMostly Positive73% of 2,674 reviews2025
Dev: Atypical GamesPub: Gaijin Network Ltd
Windows
Median: 5.9 hrsMean: 8.8 hrs≥1hr: 86%
Embark on a galactic journey in Cubic Odyssey, an open-world adventure where you explore vibrant planets, craft tools, build vehicles, and fight the Red Darkness. Uncover ancient mysteries, and shape a universe full of life, danger, and limitless possibilities!
Why similar: Sci-fi 20.4%, Sandbox 20%, Space 11.8%, Online Co-Op 11.2%, Action-Adventure 9.3%
- #18 Astro Hunters VR
86% matchMixed62% of 66 reviews2024
Dev: Wenkly Studio Sp. z o.o.
Windows
Become one of the Hunters in Astro Hunters VR - PvPvE extraction shooter set in space. Explore a unique planet, fight with different enemies, craft, gather resources, and upgrade your weapons. But remember there are also other hunters on the planet. Will you ally, fight, or betray - it's up to you!
Why similar: Extraction Shooter 40.3% ★, Space 12.6%, Multiplayer 9%, PvE 7.6%, Online Co-Op 7.4%
- #19 StarMade
86% matchMixed68% of 2,989 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 35.6%, Sandbox 16.8%, Open World 11.1%, Sci-fi 10.4%, Multiplayer 10.1%
- #20 Forever Skies
83% matchMostly Positive79% of 8,551 reviews2025
Dev: Far From Home
Windows
Median: 7.6 hrsMean: 31.8 hrs≥1hr: 91%
A first-person survival game set on a post-apocalyptic, ecologically ruined Earth. Play solo or with up to 3 friends as you build, upgrade, and fly a high-tech airship. Scavenge resources, craft tools, and face dangers on the surface as you hunt for a cure to save humanity.
Why similar: Open World 17.1%, Sci-fi 16.6%, Multiplayer 15.5%, Exploration 14.7%, Adventure 10.3%
- #21 Revenge of the Savage Planet
82% matchVery Positive86% of 3,465 reviews2025
Dev: Raccoon Logic Studios Inc.
Windows
Median: 6.8 hrsMean: 10.1 hrs≥1hr: 88%
Revenge of the Savage Planet is an upbeat, satirical action adventure Sci-Fi. Jump, shoot and collect your way across vibrant alien worlds, uncovering new gear and upgrades, while discovering various hidden secrets.
Why similar: Space 18.9%, Online Co-Op 16.3%, Sci-fi 11.1%, Third Person 9.2%, Multiplayer 8.5%
- #22 No Man's Sky
82% matchVery Positive85% of 411,162 reviews2016
Dev: Hello Games
Windows · Mac
Median: 20.1 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 32.4%, Open World 15.3%, Sci-fi 13.7%, Exploration 10.9%, Sandbox 10.1%
- #23 Occupy Mars: The Game
81% matchMixed70% of 3,099 reviews2026
Dev: ▲ Pyramid Games
Windows
Median: 4.4 hrsMean: 34.2 hrs≥1hr: 78%
Survive and colonize Mars in a highly technical, open-world sandbox game. Build and upgrade your base, discover new regions, conduct mining operations, retrieve water, generate oxygen, grow crops, and fix broken parts.
Why similar: Space 24.9%, Online Co-Op 16.8%, Sandbox 14.4%, Open World 12.1%, Sci-fi 10%
- #24 Empyrion - Galactic Survival
81% matchMostly Positive78% of 34,271 reviews2020
Dev: Eleon Game Studios
Windows
Median: 6.3 hrsMean: 76.9 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 27.8%, Sandbox 12.9%, Sci-fi 12.6%, Open World 11.8%, Multiplayer 10.6%
- #25 Star Rangers™ XE
84% 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: Space 27.1%, Sandbox 16.3%, Multiplayer 13.2%, Sci-fi 12.3%, Open World 10.1%
- #26 My Little Universe
79% matchVery Positive86% of 2,198 reviews2023
Dev: EstotyPub: SayGames
Windows · Mac
Median: 5.5 hrsMean: 19.4 hrs≥1hr: 84%
Stranded on a barren moon with nothing but your tools, fuelless ship, and celestial powers of creation, you are destined to recreate what was once lost and be the hero of your own Little Universe! Don't forget to call in up to three of your friends to join your journey in the Splitscreen Co-op Mode!
Why similar: Space 30.1%, Sandbox 17.2%, Exploration 12.7%, Third Person 12.5%, Open World 12.4%
- #27 Drift: Space Survival
80% matchMostly Positive70% of 77 reviews2023
Dev: KAR Games
Windows · Mac · Linux
You were deep in uncharted space on a research mission. Disaster struck. Together with your friends, explore a mysterious asteroid field and mine whatever resources possible to build what you need to survive.
Why similar: Space 30.5%, Online Co-Op 22.8%, Sandbox 11%, Exploration 9.4%, Adventure 6.6%
- #28 Space Engineers
78% matchVery Positive89% of 133,963 reviews2019
Dev: Keen Software House
Windows
Median: 9.0 hrsMean: 96.1 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 27.4%, Sandbox 14.9%, Multiplayer 12.6%, Open World 12.1%, PvE 10.1%
- #29 Lost Skies
78% matchMixed61% of 2,941 reviews2025
Dev: Bossa StudiosPub: Balor Games
Windows
Median: 3.5 hrsMean: 11.8 hrs≥1hr: 75%
Chart a course in a breathtaking, but fractured world. Explore ancient ruins, master advanced technology, and craft your very own skyship to brave nature’s fury and colossal threats in Lost Skies. Team up with friends or go it alone in this awe-inspiring cooperative survival adventure.
Why similar: Online Co-Op 28.5%, Sandbox 17.1%, Adventure 12.9%, Open World 11.2%, Exploration 10.6%
- #30 Starbound
77% matchVery Positive90% of 123,064 reviews2016
Dev: Chucklefish
Windows · Mac · Linux
Median: 17.1 hrsMean: 64.3 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 22.2%, Sandbox 17.7%, Online Co-Op 15%, Multiplayer 9.2%, Open World 8.8%
- #31 Space Engineers 2
76% matchMostly Positive75% of 4,798 reviews2025
Dev: Keen Software House
Windows
Median: 1.4 hrsMean: 8.1 hrs≥1hr: 60%
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 35.4%, Sandbox 20.3%, Sci-fi 19.1%, Open World 14.2%, Exploration 10.9%
- #32 GRAV
79% matchMixed47% of 6,921 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: Space 22.6%, Open World 16.6%, Sandbox 16.6%, Multiplayer 13.6%, Sci-fi 8.8%
- #33 Jump Space
74% matchVery Positive86% of 11,464 reviews2025
Dev: Keepsake Games
Windows
Median: 6.1 hrsMean: 10.6 hrs≥1hr: 92%
Jump Space (formerly Jump Ship) is a mission based co-op PvE for 1-4 players, where you are the crew of a spaceship. Transition seamlessly from crewing the ship to on-foot exploration and space walks. Explore, upgrade, and survive intense encounters in deep space together.
Why similar: Space 29.2%, Sci-fi 16%, Multiplayer 11.8%, PvE 11.2%, Exploration 9.9%
- #34 Trailmakers
75% matchVery Positive92% of 37,343 reviews2019
Dev: Flashbulb
Windows
Median: 3.9 hrsMean: 15.5 hrs≥1hr: 86%
Build the ultimate vehicle and explore a vast open world filled with challenges and adventure. Play solo or team up with friends in multiplayer to conquer the toughest obstacles. With a thrilling campaign mode and endless creative possibilities, Trailmakers is the ultimate sandbox for adventurers.
Why similar: Space 28.5%, Online Co-Op 19.3%, Sandbox 9.6%, Action 8%, Multiplayer 8%
- #35 Eden Crafters
73% matchVery Positive86% of 2,537 reviews2026
Dev: Osaris Games
Windows
Median: 4.9 hrsMean: 13.6 hrs≥1hr: 79%
Eden Crafters is a solo or co-op open-world survival, crafting, and factory-building game where you transform a hostile planet into a habitable haven for humanity. Build, automate, and terraform. Control the climate, create a breathable atmosphere, and turn toxic lakes into water: shape a new world!
Why similar: Space 19.4%, Online Co-Op 16.6%, Sandbox 13.4%, Open World 10.9%, Sci-fi 8.5%
- #36 StarsOne
77% matchMostly Positive74% of 537 reviews2016
Dev: IllusoryWorldEntertainment
Windows · Mac · Linux
Median: 3.6 hrsMean: 8.2 hrs≥1hr: 96%
You’ll see an unexplored world full of dangers, mysteries and adventures. You will explore randomly generated planets, develop industry, conduct trade, plant colonies, explore outer space.
Why similar: Sandbox 47.1%, Action 31.4%, Massively Multiplayer 21.6%
- #37 ARC Raiders
71% matchVery Positive83% of 406,580 reviews2025
Dev: Embark Studios
Windows
Median: 41.3 hrsMean: 96.2 hrs≥1hr: 97%
ARC Raiders is a multiplayer extraction adventure, set in a lethal future earth, ravaged by a mysterious mechanized threat known as ARC.
Why similar: Extraction Shooter 47.6% ★, Online Co-Op 12.3%, Multiplayer 10.6%, PvE 8.6%, Sci-fi 7.4%
- #38 Dune: Awakening
72% matchMostly Positive71% of 77,257 reviews2025
Dev: Funcom
Windows
Median: 46.8 hrsMean: 99.3 hrs≥1hr: 97%
Dune: Awakening is an Open World Survival game with immersive adventure and RPG gameplay. Explore, build, craft, and unravel a cinematic Dune story alone or with friends as you rise from survival to greatness on the most legendary planet in the universe. Just remember: the sandworm always comes.
Why similar: Online Co-Op 15.4%, Sci-fi 11.9%, Sandbox 11.4%, Multiplayer 10.3%, Open World 9.8%
- #39 Outerstellar
74% matchMostly Positive72% of 172 reviews2023
Dev: Strange Horizons Ltd
Windows
Stranded on a hostile and deadly planet, you must gather resources, build shelter, and fight to survive each night. But the secrets of this world await in a gripping sci-fi survival PvP game.
Why similar: Space 28.2%, Multiplayer 16.4%, Sci-fi 15.9%, Third Person 11.3%, Exploration 9.4%
- #40 Farworld Pioneers
75% matchMostly Negative37% of 697 reviews2023
Dev: IgloosoftPub: tinyBuild
Windows
Explore an open world, sci-fi sandbox – in PVP, PVE, and co-op. Build and manage colonies on alien planets, and recruit AI survivors with unique personalities and skills. Craft, build, mine, farm, or get your electric death rifle and say hello to your neighbors.
Why similar: Space 25.3%, Online Co-Op 18.5%, Sandbox 14.1%, Sci-fi 14%, Multiplayer 11.7%
- #41 Subnautica 2
69% matchVery Positive91% of 120,899 reviews2026
Dev: Unknown Worlds Entertainment
Windows
Median: 10.3 hrsMean: 12.7 hrs≥1hr: 93%
Subnautica 2 is an underwater survival adventure set on an all-new alien world, developed by Unknown Worlds. Play alone or with friends in 4-player co-op. Adapt to survive by building custom bases and crafting tools. Explore the unknown to uncover the mysteries hidden within the depths.
Why similar: Multiplayer 22.1%, Open World 16.5%, Exploration 15.7%, Sci-fi 11.5%, Sandbox 9.9%
- #42 Azulgar: Star Commanders
76% matchMixed51% of 108 reviews2017
Dev: SZEINER
Windows
Azulgar: Star Commanders is a Sci-Fi open world sandbox game that puts you in a command of your own custom made space ship. Explore aftermath of the Azulgar event that reshaped the face of the solar system.
Why similar: Space 35%, Sci-fi 19.4%, Action 15.2%, Adventure 14.4%, Sandbox 5.4%
- #43 No Love Lost
73% matchMixed50% of 70 reviews2024
Dev: Ratloop Games Canada
Windows
Grab your ragtag crew & take up the Nectar Raiding trade on a dangerous planet that’s become all the rage! In this PvPvE extraction game for 1-10 players, compete against enemy crews to harvest as much Nectar as possible before night falls. But watch out, you're not the only one roaming this planet!
Why similar: Extraction Shooter 34.3% ★, Online Co-Op 11.9%, Sci-fi 9.6%, Multiplayer 8.7%, Open World 7.9%
- #44 Voidtrain
70% matchMostly Positive74% of 9,612 reviews2025
Dev: HypeTrain Digital
Windows
Median: 8.5 hrsMean: 14.0 hrs≥1hr: 93%
Become a crew member of an Interdimensional Express Train! Discover a new world full of mysterious creatures, enemies and places. Upgrade and customize your train, gather new materials and build better weapons. Play solo or online сo-op with up to 4 people.
Why similar: Online Co-Op 23.1%, Multiplayer 17%, Open World 14%, Sandbox 13.5%, Exploration 9.6%
- #45 Volcanoids
71% matchVery Positive83% of 9,298 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: Online Co-Op 20.6%, Sandbox 17.8%, Open World 13.4%, Multiplayer 13.1%, Exploration 11.8%
- #46 Ocean World: Eden Crafters Prologue
68% matchVery Positive91% of 7,488 reviews2024
Dev: Osaris Games
Windows
Median: 1.3 hrsMean: 3.0 hrs≥1hr: 55%
Survive, craft, and automate in this free prologue set on one of the planets you can transform in Eden Crafters, an open-world game where you play solo or with friends to turn a hostile planet into a habitable haven for humanity.
Why similar: Online Co-Op 18.3%, Space 15.9%, Multiplayer 14.7%, Sandbox 12.2%, Open World 11.7%
- #47 The Planet Crafter: Prologue
69% matchOverwhelmingly Positive96% of 10,689 reviews2021
Dev: Miju Games
Windows
Median: 1.4 hrsMean: 3.9 hrs≥1hr: 56%
Experience the first stages of terraforming an entire planet in this space survival open world terraforming crafting game prologue. Explore, survive, collect, build your base then create oxygen, heat and pressure to make an hostile planet livable for humanity.
Why similar: Space 23.2%, Multiplayer 20.3%, Open World 17.6%, Sandbox 16.8%, Exploration 13.5%
- #48 Core Keeper
67% matchVery Positive93% of 65,308 reviews2024
Dev: PugstormPub: Fireshine Games
Windows · Linux
Median: 12.0 hrsMean: 34.5 hrs≥1hr: 91%
Explore a vast cavern of creatures, relics and resources in a mining sandbox adventure for 1-8 players. Mine, build, fight, craft and farm to unravel the mystery of the ancient Core.
Why similar: Online Co-Op 20.9%, Sandbox 16.7%, Open World 14.7%, Multiplayer 14.4%, Exploration 11.2%
- #49 Horizon Journey
70% matchMostly Negative26% of 86 reviews2026
Dev: Redivided Studios
Windows
Embark on an epic adventure to Mars in Horizon Journey, an open-world survival game that blends colonization, terraforming, and exploration in both single-player and multiplayer co-op modes. You're tasked with the monumental challenge of making Mars a new home for humanity.
Why similar: Space 25.6%, Online Co-Op 19%, Sandbox 14.2%, Open World 11.7%, Exploration 9.3%
- #50 Jitter
68% matchVery Positive85% of 163 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 28.6%, Sci-fi 14.9%, Sandbox 14.2%, Open World 12.4%, Exploration 9.7%
- #51 Everwind
65% matchVery Positive81% of 3,601 reviews2026
Dev: Enjoy Studio S.A.Pub: Bohemia Interactive
Windows
Median: 6.9 hrsMean: 13.5 hrs≥1hr: 89%
Everwind is a novel take on RPG and Sandbox Survival genre in First-Person-Perspective. Embark on the adventure with your friends - Build a base on a flying island-ship, gather resources, craft, loot, and fight while you rise above the clouds to uncover the mysteries of this world!
Why similar: Online Co-Op 23.5%, Sandbox 16.4%, Multiplayer 14.5%, Open World 14.4%, PvE 8.4%
- #52 MoonMiners
66% matchVery Positive92% of 219 reviews2025
Dev: MIROWINPub: PM Studio
Windows
MoonMiners is a cooperative survival simulator of miners in space, in an alternative dystopian future. You take on the role of space miners working for an evil corporation far from home, and it will be much easier for you to die than to do your job.
Why similar: Space 31.7%, Online Co-Op 24.1%, Multiplayer 13.7%, PvE 11.9%, Exploration 11.4%
- #53 Edge of Space
71% matchMostly Negative33% of 2,729 reviews2015
Dev: Handyman StudiosPub: Reverb Triple XP
Windows
Median: 4.4 hrsMean: 5.8 hrs≥1hr: 85%
Suit up as an operative of the Ark Corporation, sent to the farthest reaches of the universe in search of habitable planets to terraform. However, after the long space journey you awaken from cryosleep to find that your ship has gone way off course and is disabled near a strange new world.
Why similar: Space 25%, Sandbox 23.7%, Sci-fi 13.2%, Multiplayer 9.1%, Adventure 8.7%
- #54 VoidExpanse
69% matchMostly Positive71% of 765 reviews2015
Dev: AtomicTorch Studio
Windows · Mac · Linux
Median: 3.9 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 43.9%, Sci-fi 14.8%, Sandbox 13.2%, Open World 12.9%, Action 7.7%
- #55 TerraTech
66% matchVery Positive91% of 24,767 reviews2018
Dev: Payload StudiosPub: Mythwright
Windows · Mac · Linux
Median: 8.2 hrsMean: 32.8 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: Sandbox 23.8%, Open World 18.2%, Multiplayer 16.8%, Online Co-Op 11.4%, Exploration 8.4%
- #56 Project 5: Sightseer
68% matchMostly Positive72% of 547 reviews2019
Dev: Tasharen Entertainment Inc.
Windows · Mac · Linux
Median: 5.1 hrsMean: 28.6 hrs≥1hr: 69%
Open world multiplayer sandbox/RPG game. Explore, gather, build, research, and fight to protect what's yours -- by yourself or together with your friends.
Why similar: Sandbox 28.6%, Adventure 24.2%, Action 21.6%, Open World 16.2%, Multiplayer 9.4%
- #57 Avorion
66% matchVery Positive90% of 14,488 reviews2020
Dev: Boxelware
Windows · Mac · Linux
Median: 18.5 hrsMean: 99.0 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 26.3%, Sandbox 14.9%, Sci-fi 13%, Open World 11.3%, Third Person 10.1%