- #1 Void Crew
97% 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 32.2% ★, Co-op 15.1%, Space 11.2%, Multiplayer 8.9%, Online Co-Op 7.3%
Why You'll Like It: A direct competitor in the multi-crew space sim genre that focuses heavily on teamwork and ship maintenance during chaotic combat.
- #2 Barotrauma
96% 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: Co-op 44.7%, Multiplayer 24.8%, Sci-fi 17%, Simulation 11%, Action 2.4%
Why You'll Like It: This is the closest experience to PULSAR, requiring intense multi-crew cooperation to manage a submarine through a hostile alien ocean.
- #3 Empyrion - Galactic Survival
95% 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 23.9% ★, Co-op 13.4%, Space 12.9%, Open World 10.7%, PvE 7.9%
Why You'll Like It: Combines complex ship piloting with planetary exploration and survival mechanics in a vast open universe.
- #4 Artemis Spaceship Bridge Simulator
94% matchVery Positive90% of 466 reviews2013
Windows
Median: 2.1 hrsMean: 3.3 hrs≥1hr: 62%
Artemis is designed for anyone who watched Star Trek and dreamed of what it would be like to sit on the bridge of a star ship. Artemis simulates a spaceship bridge by networking several computers together. You cannot play Artemis single-player!
Why similar: Space 27.8%, Simulation 23.1%, Co-op 22.4%, Multiplayer 12.3%, Sci-fi 10%
Why You'll Like It: The definitive bridge simulator that captures the specific feeling of operating a starship with a dedicated crew.
- #5 Elite Dangerous
94% matchMostly Positive77% of 105,113 reviews2015
Dev: Frontier Developments
Windows
Median: 18.4 hrsMean: 146.5 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 36.8% ★, Space 16.7%, Open World 12.6%, Sci-fi 7.7%, Exploration 5.4%
Why You'll Like It: Provides the most immersive and realistic space-sim flight experience for players who love the technical side of piloting.
- #6 Avorion
93% 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: Spaceships 30% ★, Space Sim 25% ★, Space 11.4%, Open World 9.5%, PvE 8.1%
Why You'll Like It: Focuses on modular ship building and exploration, allowing players to design ships that function exactly as they need.
- #7 Space Engineers
92% 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 29.1% ★, Space 14%, Co-op 13%, Open World 12%, PvE 10.4%
Why You'll Like It: Provides the same deep ship-building and engineering mechanics that allow players to construct and operate their own vessels.
- #8 Cosmoteer: Starship Architect & Commander
91% 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: Spaceships 30.5% ★, Space Sim 22.7% ★, Space 12.2%, Sci-fi 10.7%, Online Co-Op 7.8%
Why You'll Like It: Excellent for players who enjoy the design and tactical management of ships in a sci-fi setting.
- #9 Starship Troopers: Extermination
90% matchMostly Positive80% of 32,811 reviews2024
Dev: Offworld
Windows
Median: 4.9 hrsMean: 17.7 hrs≥1hr: 86%
Starship Troopers: Extermination is a 16-player co-op FPS that puts you on the far-off frontlines of an all-out battle against the Bugs! Squad up, grab your rifle, and do your part as an elite Deep Space Vanguard Trooper to take back planets from the Arachnid threat!
Why similar: Class-Based 18.2% ★, Co-op 12.8%, Space 12.4%, Online Co-Op 11%, PvE 10%
Why You'll Like It: Delivers the intense, mission-based co-op FPS combat found during PULSAR's planetary exploration segments.
- #10 Stationeers
91% 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: Space 32.4%, Co-op 28.8%, Sci-fi 20.7%, Multiplayer 18.1%
Why You'll Like It: Deeply simulates the technical ship systems and survival mechanics, appealing to players who enjoy the complexity of PULSAR's engineering.
- #11 Interstellar Rift
89% 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 37.9% ★, Open World 14.9%, Space 14.4%, Sci-fi 8.7%, First-Person 7.5%
Why You'll Like It: Shares a similar focus on ship interior management and multi-crew operations in a sandbox environment.
- #12 Sea of Thieves: 2025 Edition
88% matchVery Positive89% of 367,360 reviews2020
Dev: Rare LtdPub: Xbox Game Studios
Windows
Median: 22.3 hrsMean: 84.5 hrs≥1hr: 96%
Sea of Thieves is a smash-hit pirate adventure game, offering the quintessential pirate experience of plundering lost treasures, intense battles, vanquishing sea monsters and more. Dive in with this revised edition of the game, which includes access to digital bonus media.
Why similar: Open World 21.6%, Co-op 18.8%, Multiplayer 15.9%, Online Co-Op 14.4%, PvE 6.9%
Why You'll Like It: While nautical, it is the gold standard for the 'everyone has a role' ship management co-op experience.
- #13 Starbase
89% matchMixed56% of 6,702 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: Space Sim 31% ★, Open World 13.6%, Space 12.9%, Robots 9.9%, Sci-fi 7.6%
Why You'll Like It: Features massive-scale ship building and simulation within a persistent, multiplayer universe.
- #14 Deep Rock Galactic
85% matchOverwhelmingly Positive97% of 372,881 reviews2020
Dev: Ghost Ship GamesPub: Coffee Stain Publishing
Windows
Median: 14.2 hrsMean: 75.7 hrs≥1hr: 94%
Deep Rock Galactic is a 1-4 player co-op FPS featuring dwarven space miners, procedurally-generated destructible environments, and endless hordes of alien monsters. Explore cave systems, mine for minerals, and work together to survive!
Why similar: Class-Based 21.6% ★, Co-op 19.5%, PvE 13.2%, Space 12.1%, FPS 11.2%
Why You'll Like It: Captures the chaotic, mission-based co-op sci-fi exploration feel with distinct roles for every player.
- #15 Angels Fall First
86% matchVery Positive82% of 2,786 reviews2015
Dev: Strangely Interactive Ltd
Windows
Median: 1.6 hrsMean: 5.9 hrs≥1hr: 62%
From commanding the battle standing on the bridge of your flagship all the way down to tactical infantry firefights - AFF brings together all the combat you ever wanted in a rich science fiction setting. Boarding, pilotable capital ships, deep weapon customization and full AI support included!
Why similar: Space 23.9%, FPS 18.6%, Sci-fi 16.6%, Multiplayer 13.8%, Simulation 9.6%
Why You'll Like It: Combines large-scale space battles with FPS boarding actions, mirroring the hybrid gameplay of PULSAR.
- #16 Jump Space
84% matchVery Positive86% of 10,042 reviews2025
Dev: Keepsake Games
Windows
Median: 5.9 hrsMean: 9.7 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: Spaceships 26.4% ★, Co-op 15.7%, Space 13.9%, PvE 11.3%, FPS 9.1%
Why You'll Like It: A co-op title that emphasizes the bridge-crew experience and tactical space combat.
- #17 EVERSPACE™ 2
84% matchVery Positive86% of 12,587 reviews2023
Dev: ROCKFISH Games
Windows · Mac
Median: 7.7 hrsMean: 29.1 hrs≥1hr: 87%
EVERSPACE 2 is a fast-paced single-player spaceship shooter with exploration in space and on planets, tons of loot, RPG elements, mining, and crafting. Experience an exciting sci-fi story set in a vivid, handcrafted open world full of secrets, puzzles, and perils.
Why similar: Space 24.5%, Open World 19.3%, PvE 15.3%, Sci-fi 11.1%, Exploration 9.9%
Why You'll Like It: Focuses on the exploration and combat loop in a beautiful sci-fi setting with deep ship customization.
- #18 StarMade
86% matchMixed68% of 2,981 reviews2014
Dev: Schine GmbH
Windows · Mac · Linux
Median: 1.3 hrsMean: 18.8 hrs≥1hr: 54%
The ultimate space sandbox. Participate in epic fleet battles, form alliances, strive to dominate entire galaxies and harness the universe’s resources for your industrious empire or the destruction of others. Customise your experience, the universe is yours!
Why similar: Space 27.8%, Open World 16.8%, Space Sim 15.7% ★, Multiplayer 9.8%, Sci-fi 9.4%
Why You'll Like It: A sandbox space sim that emphasizes modular building and multiplayer interaction in a block-based universe.
- #19 HELLDIVERS™ 2
82% matchMostly Positive77% of 1,121,275 reviews2024
Dev: Arrowhead Game StudiosPub: PlayStation Publishing LLC
Windows
Median: 44.4 hrsMean: 100.4 hrs≥1hr: 98%
The Galaxy’s Last Line of Offence. Enlist in the Helldivers and join the fight for freedom across a hostile galaxy in a fast, frantic, and ferocious third-person shooter.
Why similar: Online Co-Op 19.7%, PvE 17.4%, Co-op 16.8%, Space 15.3%, Multiplayer 12.6%
Why You'll Like It: Offers high-stakes co-op sci-fi action with ship-based support mechanics and team-oriented objectives.
- #20 Space Haven
82% 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 37.3% ★, Space 19.3%, Open World 15.4%, Sci-fi 12%, Simulation 8.2%
Why You'll Like It: Offers deep management and ship-building mechanics with a focus on crew survival in a sci-fi setting.
- #21 Ostranauts
81% 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: Spaceships 33% ★, Space Sim 23% ★, Space 11.5%, Open World 9.2%, Exploration 8.3%
Why You'll Like It: Focuses on the detailed, difficult ship maintenance and survival systems in a grounded, realistic space setting.
- #22 Rodina
80% matchVery Positive93% of 1,329 reviews2014
Dev: Elliptic Games
Windows
Median: 2.8 hrsMean: 6.4 hrs≥1hr: 71%
A single-developer passion project. A seamless full scale solar system. Thrilling action. Be part of an incredible journey as a Universe is built from the ground up!
Why similar: Space 28.7%, Space Sim 21.2% ★, Open World 18.9%, Exploration 10.6%, Sci-fi 10.5%
Why You'll Like It: Features seamless planet-to-space transitions and ship exploration in a massive, procedurally generated world.
- #23 Evochron Mercenary
81% matchMostly Positive77% of 434 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 Sim 30.7% ★, Space 26.7%, Open World 11.7%, Simulation 10.9%, Sci-fi 9.3%
Why You'll Like It: A pure space-sim experience with a focus on Newtonian physics and exploration.
- #24 Volcanoids
79% matchVery Positive83% of 9,214 reviews2019
Dev: Volcanoid
Windows · Linux
Median: 3.8 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: Open World 19.8%, Co-op 17.5%, Online Co-Op 16.9%, Multiplayer 13.1%, First-Person 9.9%
Why You'll Like It: Features a mobile base that requires constant management and defense, similar to operating a ship in PULSAR.
- #25 Wildgate
76% matchMostly Positive78% of 5,481 reviews2025
Dev: Moonshot GamesPub: Dreamhaven
Windows
Median: 7.3 hrsMean: 14.4 hrs≥1hr: 87%
Wildgate is a PvPvE multiplayer shooter that blends tactical ship-to-ship combat with fast-paced first-person action. Evade deadly environmental hazards, search for powerful weapons and ship upgrades, and be the first crew to escape with the Artifact... or the last crew left flying.
Why similar: Spaceships 26.6% ★, Space Sim 15% ★, Space 9.6%, Co-op 8.9%, FPS 6.6%
- #26 Objects in Space
79% 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 Sim 26.8% ★, Space 24.7%, Simulation 15.2%, RPG 11.5%, Open World 6.9%
Why You'll Like It: A unique, simulation-heavy take on space navigation and ship management that prioritizes realism.
- #27 Stars End
78% matchMixed61% of 1,414 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 Sim 18.5% ★, Co-op 13.4%, Space 11.1%, Online Co-Op 8.8%, Open World 8.5%
Why You'll Like It: A multiplayer survival game set in space with a focus on exploration and building elements.
- #28 Starship EVO
77% 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 Sim 23.3% ★, Space 21.6%, Spaceships 14% ★, Simulation 10.3%, Open World 9.8%
- #29 Between the Stars
76% 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 34% ★, Space 24.8%, Sci-fi 9%, RPG 8.8%, Simulation 8.8%
- #30 Lodestar
77% 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 Sim 30.6% ★, Space 14%, Online Co-Op 12.4%, Co-op 12.2%, Sci-fi 8.9%
- #31 Miner Wars 2081
78% matchMostly Negative36% of 386 reviews2012
Dev: Keen Software House
Windows
Median: 36 minMean: 4.4 hrs≥1hr: 39%
Operate an advanced mining ship in a fully destructible and open-world environment!
Why similar: Space 30.7%, Simulation 21%, RPG 20.9%, Sci-fi 11.2%, Action 8.1%
Why You'll Like It: Features 6-DOF space combat and mining that captures the early-game feel of space exploration.
- #32 Warspace 2
74% matchMixed61% of 82 reviews2025
Dev: Magic Game Art
Windows · Mac · Linux
Warspace 2 is a 1-4 player CO-OP space shooter with RPG elements, open-world and procedurally-generated galaxy. You can trade, craft, and fight your way through a universe, either solo or with friends.
Why similar: Space Sim 29.1% ★, Space 14.3%, PvE 10.5%, Co-op 9.5%, Open World 9%
- #33 Rebel Galaxy
75% matchVery Positive85% of 8,230 reviews2015
Dev: Double Damage Games
Windows · Mac
Median: 1.8 hrsMean: 13.6 hrs≥1hr: 62%
Rebel Galaxy is a swashbuckling space adventure, with action-packed combat, exploration, discovery, trade, and “negotiation” with the outlandish denizens at the edge of the known universe.
Why similar: Space 31.8%, Space Sim 25.8% ★, Open World 15.6%, Sci-fi 11.7%, RPG 5.6%
- #34 Destination Sol
75% matchMostly Positive79% of 1,362 reviews2015
Dev: MovingBlocks
Windows · Mac · Linux
Median: 30 minMean: 3.8 hrs≥1hr: 30%
Pilot your ship in the seamless open world made of space, planets, and more. Find new ships and equipment, find allies and beat all the enemies in this open source space shooter!
Why similar: Space 40.7%, Open World 28.4%, RPG 16.8%, Action 5.1%, Sci-fi 5%
- #35 Starcom: Nexus
73% 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 29.5%, Space Sim 25.3% ★, Sci-fi 12.8%, Open World 12%, Exploration 8.2%
- #36 Star Conflict
74% matchMostly Positive73% of 15,084 reviews2013
Dev: Star Gem Inc.Pub: Gaijin Network Ltd
Windows · Mac · Linux
Median: 2.0 hrsMean: 34.3 hrs≥1hr: 63%
Star Conflict is an action-packed, massively multiplayer space simulation game that puts players in the role of elite pilots engaging in a widespread interplanetary skirmish. The whole world for PVP and PVE!
Why similar: Space Sim 37.9% ★, Open World 15.3%, Online Co-Op 13.8%, PvE 13.3%, Sci-fi 11%
- #37 Jitter
71% matchVery Positive86% of 153 reviews2025
Dev: Berko Games
Windows
A sci-fi exploration & survival game where you take on the role of a spaceship’s AI. Explore, fight, and survive across a mining colony in the Main Asteroid Belt. Rebuild your ship. Rescue your crew. Reveal the truth behind your mission.
Why similar: Space Sim 39.2% ★, Space 19.5%, Open World 16.5%, Sci-fi 11.8%, Exploration 8.2%
- #38 Star Trek Online
73% matchMostly Positive79% of 20,893 reviews2012
Dev: Cryptic StudiosPub: Arc Games
Windows
Median: 6.8 hrsMean: 132.7 hrs≥1hr: 84%
In Star Trek Online, the Star Trek universe appears for the first time on a truly massive scale. Players take the captain's chair as they command their own starship and crew. Explore strange new worlds, seek out new life and new civilizations, and boldly go where no one has gone before.
Why similar: Space 26%, Sci-fi 17.8%, Open World 13.8%, RPG 8.1%, Multiplayer 7.9%
- #39 Lost Fleet
72% matchMixed62% of 74 reviews2022
Dev: InfinityNan Studios
Windows
Lost Fleet is a co-op space shooter. Every ship in your fleet is flyable, from the smallest fighter to the largest battleship. Protect the Mothership, mine resources, crush your enemies.
Why similar: Space Sim 36.4% ★, Online Co-Op 15.9%, PvE 13.9%, Space 12.1%, Multiplayer 11.8%
- #40 Farworld Pioneers
73% matchMostly Negative38% of 691 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: Co-op 25%, Space 19.6%, Online Co-Op 14.8%, Sci-fi 12.5%, Multiplayer 11.3%
- #41 Slipstream: Rogue Space
70% matchVery Positive92% of 142 reviews2024
Dev: Subpixel Studios
Windows · Mac
A multiplayer roguelike about teamwork, survival...and cute animals in space! Play with a few friends or join a streamer's crew of dozens as you work together to battle aliens across the vast Rogue Space.
Why similar: Space Sim 28.1% ★, Class-Based 17.7% ★, Co-op 12.9%, Nonlinear 10.1%, Sci-fi 8.7%
- #42 Planet Explorers
72% 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: Open World 33.5%, Multiplayer 15.5%, Co-op 10.8%, Exploration 10.4%, Sci-fi 10.4%
- #43 Star Explorers
70% matchVery Positive83% of 250 reviews2018
Dev: Schmidt Workshops
Windows
Median: 3.7 hrsMean: 4.9 hrs≥1hr: 80%
Planets, aliens, resources, upgrades, caves, mapping & documenting star systems ... seek a new home for the human race. An all-inclusive (admittedly janky) procedural space-sim made by solo developer Schmidt Workshops.
Why similar: Space Sim 32.5% ★, Space 15.1%, Open World 12.6%, Nonlinear 9.8%, Sci-fi 7.5%
- #44 POLARIS™
68% matchMixed58% of 79 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: Online Co-Op 14.7%, Space 14%, Co-op 12.7%, Open World 12.4%, PvE 11.1%
- #45 Starbound
68% matchVery Positive90% of 122,901 reviews2016
Dev: Chucklefish
Windows · Mac · Linux
Median: 17.2 hrsMean: 64.1 hrs≥1hr: 91%
You’ve fled your home, only to find yourself lost in space with a damaged ship. Your only option is to beam down to the planet below, repair your ship and set off to explore the universe...
Why similar: Space 20.4%, Open World 15.6%, Co-op 14.5%, Online Co-Op 14.3%, Multiplayer 10.6%
- #46 Moonbase Alpha
69% matchVery Positive91% of 12,849 reviews2010
Dev: Virtual HeroesPub: NASA
Windows
Median: 54 minMean: 3.8 hrs≥1hr: 46%
NASA has once again landed on the lunar surface with the goal of colonization, research, and further exploration. Shortly after the return to the Moon, NASA has established a small outpost on the south pole of the moon called Moonbase Alpha.
Why similar: Space 32.9%, Multiplayer 14%, Online Co-Op 13.8%, Simulation 11.6%, Open World 11.3%
- #47 Interstellar Marines
71% matchMixed54% of 7,874 reviews2013
Dev: Zero Point Software
Windows · Mac · Linux
Median: 48 minMean: 6.8 hrs≥1hr: 45%
UPDATE 28 AVAILABLE - Interstellar Marines is an immersive tactical sci-fi First Person Simulator in the making, offering a unique blend of tactical gameplay, dynamic environments and non-scripted AI. Play Singleplayer or Co-op/PvP on servers around the world.
Why similar: Co-op 23.1%, FPS 19%, Sci-fi 13.6%, Multiplayer 13.1%, Space 7.4%
- #48 Lost Skies
67% matchMixed62% of 2,832 reviews2025
Dev: Bossa StudiosPub: Balor Games
Windows
Median: 3.4 hrsMean: 12.1 hrs≥1hr: 76%
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 25.7%, Open World 18.8%, Character Customization 12.7%, PvE 12.2%, Exploration 11.3%
- #49 Starcom: Unknown Space
65% 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 34.3% ★, Space 24%, Open World 15.8%, Sci-fi 9.2%, Exploration 8.4%
- #50 Take On Mars
70% matchMixed55% of 2,023 reviews2017
Dev: Bohemia Interactive
Windows
Median: 3.0 hrsMean: 10.5 hrs≥1hr: 87%
Take On Mars places you right in the middle of mankind’s most exciting undertaking. Start out in the seat of a rover operator, finish as the first human to have ever set foot on the Red Planet.
Why similar: Space Sim 28.4% ★, Space 25.2%, Simulation 12.2%, Exploration 9%, Multiplayer 8.1%
- #51 MoonMiners
65% matchVery Positive92% of 202 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 16.6%, Co-op 16.5%, Online Co-Op 13.1%, PvE 12.5%, FPS 9.6%
- #52 Wayward Terran Frontier: Zero Falls
69% 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 38.7% ★, Open World 16.3%, Space 15.9%, Sci-fi 8.6%, Simulation 7%
- #53 Mars First Logistics
63% matchOverwhelmingly Positive95% of 3,474 reviews2025
Dev: Shape Shop
Windows
Median: 4.5 hrsMean: 10.1 hrs≥1hr: 79%
Build physically simulated rovers to transport awkwardly shaped cargo across the rugged terrain of Mars. Earn funds, unlock new parts, and use your ingenuity to help the Martians establish a new home. Playable solo or in online co-op!
Why similar: Space Sim 31.7% ★, Co-op 23.2%, Robots 19.6%, Open World 12.8%, Exploration 6.7%
- #54 Guns of Icarus Alliance
68% matchMostly Positive76% of 1,437 reviews2017
Dev: Muse Games
Windows · Mac · Linux
Median: 42 minMean: 15.5 hrs≥1hr: 44%
Own the skies in steam-powered airships! Guns of Icarus Alliance is a team-based online game that pits co-op crews against both rival teams and an AI that learns your tactics. Players become part of the story as each battle shapes history in an ever-changing steampunk world.
Why similar: Co-op 31.4%, Multiplayer 22%, Simulation 18.2%, Adventure 7.4%, Action 6.6%
- #55 Kinetic Void
71% matchOverwhelmingly Negative17% of 1,556 reviews2014
Dev: Badland Studio
Windows · Mac · Linux
Median: 1.9 hrsMean: 3.6 hrs≥1hr: 76%
Kinetic Void is a 3D space adventure with a focus on customization and enjoyable space simulation. The shipyard allows players to construct their ship piece by piece. Ships can be as simplistic as a cockpit, a hull, a engine and a gun, or as complex as a player wants.
Why similar: Space 43.6%, Space Sim 19.4% ★, Simulation 14.4%, Sci-fi 13.9%, Open World 4.5%
- #56 X4: Foundations
66% matchMostly Positive80% of 27,985 reviews2018
Dev: Egosoft
Windows · Linux
Median: 5.1 hrsMean: 94.2 hrs≥1hr: 80%
Your journey to building a vast space empire begins behind the controls of a single ship. Explore the stars, trade goods, fight battles, build stations, buy and equip ships, and command fleets in a living, fully simulated universe that reacts to your decisions.
Why similar: Space Sim 40.5% ★, Space 17.8%, Open World 11%, Sci-fi 8%, Exploration 8%
- #57 Hardspace: Shipbreaker
65% 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 Sim 30% ★, Space 28.4%, Sci-fi 16.9%, Simulation 10.6%, First-Person 8%