- #1 Void Crew
97% matchVery Positive86% of 8,473 reviews2024
Dev: Hutlihut GamesPub: Focus Entertainment
Windows
Median: 9.2 hrsMean: 16.8 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 28.5%, Co-op 12.8%, Space 9.5%, PvE 8.2%, Multiplayer 7.3%
Why You'll Like It: This game focuses heavily on the same multi-crew ship management and cooperative combat mechanics found in the seed game.
- #2 Empyrion - Galactic Survival
96% 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 24.1%, Co-op 13.2%, Space 13%, Open World 11%, PvE 7.5%
Why You'll Like It: A comprehensive space survival game that allows for cooperative exploration, ship building, and planetary landing.
- #3 Avorion
95% 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: Spaceships 29.9% ★, Space Sim 25.2%, Space 11.5%, Open World 9.9%, PvE 7.7%
Why You'll Like It: This sandbox space-sim excels in ship design and fleet management, providing a great sense of progression in an open galaxy.
- #4 Barotrauma
94% 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: Co-op 44.8%, Multiplayer 24.7%, Sci-fi 17.1%, Simulation 10.8%, Action 2.6%
Why You'll Like It: A high-tension cooperative submarine simulator that requires players to manage complex ship systems while exploring a hostile alien environment.
- #5 Space Engineers
94% 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 29.5%, Space 14.2%, Co-op 12.8%, Open World 12.4%, PvE 9.9%
Why You'll Like It: It offers deep ship-building mechanics and cooperative exploration that allow players to construct and operate their own vessels together.
- #6 Elite Dangerous
93% 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 37%, Space 16.8%, Open World 12.9%, Sci-fi 7.7%, Exploration 5.4%
Why You'll Like It: Provides a highly realistic and massive scale space simulation that captures the feeling of being a pilot in a vast, open-world galaxy.
- #7 Sea of Thieves: 2026 Edition
92% matchVery Positive89% of 373,680 reviews2020
Dev: Rare LtdPub: Xbox Game Studios
Windows
Median: 22.0 hrsMean: 86.3 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 22.4%, Co-op 18.7%, Multiplayer 15.7%, Online Co-Op 13.9%, PvE 6.7%
Why You'll Like It: While nautical rather than space-faring, it provides the definitive multi-crew ship operation experience where every player has a distinct role to play.
- #8 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 38%, Open World 15.2%, Space 14.4%, Sci-fi 8.6%, First-Person 7.4%
Why You'll Like It: A space-sim that emphasizes ship construction and multi-crew management within a persistent, open-world environment.
- #9 Starbase
91% matchMixed55% of 6,768 reviews2021
Dev: Frozenbyte
Windows
Median: 14.2 hrsMean: 91.5 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 13.9%, Space 12.9%, Robots 9.9%, Sci-fi 7.6%
Why You'll Like It: Features a massive scale with complex ship-building and systems management that appeals to fans of technical space simulations.
- #10 Cosmoteer: Starship Architect & Commander
89% 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: Spaceships 30.5% ★, Space Sim 23%, Space 12.4%, Sci-fi 10.8%, Online Co-Op 7.4%
Why You'll Like It: Focuses on the intricate design and management of starships, offering a strategic perspective on ship functionality.
- #11 Stationeers
90% 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: Space 33%, Co-op 28.5%, Sci-fi 20.8%, Multiplayer 17.7%
Why You'll Like It: A hardcore systems-management game that challenges players to maintain complex life-support and energy systems in space.
- #12 Deep Rock Galactic
88% matchOverwhelmingly Positive97% of 380,437 reviews2020
Dev: Ghost Ship GamesPub: Coffee Stain Publishing
Windows
Median: 14.1 hrsMean: 76.4 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%, Co-op 19.5%, PvE 12.7%, Space 12.3%, FPS 11.7%
Why You'll Like It: While not ship-based, it is the gold standard for cooperative sci-fi exploration and class-based teamwork in hostile environments.
- #13 Starship EVO
89% 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: Space Sim 23.3%, Space 22.4%, Spaceships 15.2% ★, Open World 9.7%, Simulation 9.5%
Why You'll Like It: An advanced building simulator that allows for highly detailed ship construction and mechanical interaction.
- #14 Ostranauts
86% matchMostly Positive77% of 3,288 reviews2026
Dev: Blue Bottle GamesPub: Kitfox Games
Windows
Median: 6.8 hrsMean: 32.6 hrs≥1hr: 73%
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 31.3%, Spaceships 26.2% ★, Space 14.5%, Open World 7.4%, Exploration 6.3%
Why You'll Like It: A gritty, simulation-heavy game focused on ship salvage and survival that captures a similar sense of technical difficulty.
- #15 Jump Space
84% matchVery Positive85% of 13,145 reviews2025
Dev: Keepsake Games
Windows
Median: 6.5 hrsMean: 11.9 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 34.3% ★, Space 11.7%, Co-op 11%, PvE 8.5%, FPS 8.1%
Why You'll Like It: A cooperative sci-fi FPS that focuses on team-based objectives and exploration in a space setting.
- #16 EVERSPACE™ 2
85% matchVery Positive86% of 13,135 reviews2023
Dev: ROCKFISH Games
Windows · Mac
Median: 7.5 hrsMean: 29.8 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 25%, Open World 19.9%, PvE 14.4%, Sci-fi 11.1%, Exploration 9.8%
Why You'll Like It: Offers an action-oriented space exploration experience with deep RPG elements and satisfying ship combat.
- #17 Angels Fall First
84% matchVery Positive81% of 4,091 reviews2026
Dev: Strangely Interactive Ltd
Windows
Median: 1.6 hrsMean: 5.5 hrs≥1hr: 63%
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 loved in a rich science fiction setting. Boarding, pilotable capital ships, deep weapon customization and full Bot support included!
Why similar: Space Sim 25.8%, Space 15.4%, Co-op 13%, FPS 11.4%, Sci-fi 10%
Why You'll Like It: Combines large-scale space battles with first-person ground combat, mirroring the multi-faceted gameplay of the seed game.
- #18 Space Haven
82% matchVery Positive86% of 11,153 reviews2026
Dev: Bugbyte Ltd.
Windows · Mac · Linux
Median: 4.2 hrsMean: 21.0 hrs≥1hr: 71%
Embark on a space voyage with your ragtag crew of civilians in search of a new home. Build spaceships tile by tile, create optimal gas conditions, manage the needs and moods of their crew, encounter other space-faring groups, and explore the universe in this spaceship colony simulation.
Why similar: Space Sim 37.3%, Space 20.3%, Open World 15.3%, Sci-fi 11.9%, Simulation 7.8%
Why You'll Like It: A colony-sim that requires players to manage a crew and ship systems, focusing on survival and ship-to-ship combat.
- #19 Starship Troopers: Extermination
83% matchMostly Positive79% of 33,422 reviews2024
Dev: Offworld
Windows
Median: 4.9 hrsMean: 19.2 hrs≥1hr: 86%
Starship Troopers: Extermination is an up to 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 17.7%, Co-op 12.8%, Space 12.7%, Online Co-Op 10.7%, FPS 10.3%
Why You'll Like It: Provides intense cooperative first-person action that captures the sci-fi military aesthetic and teamwork requirements.
- #20 Objects in Space
86% matchMixed52% of 625 reviews2019
Dev: Flat Earth GamesPub: 505 Games
Windows · Mac · Linux
Median: 2.2 hrsMean: 6.6 hrs≥1hr: 70%
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 28%, Space 25.2%, Simulation 14.1%, RPG 11.2%, Open World 6.7%
Why You'll Like It: A unique space-sim that focuses on complex ship systems and navigation, emphasizing the technical side of space travel.
- #21 Rebel Galaxy
82% matchVery Positive85% of 8,397 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 31.6%, Space Sim 25.9%, Open World 15.9%, Sci-fi 11.6%, RPG 5.6%
Why You'll Like It: A space-faring RPG that focuses on ship combat and exploration with a distinct, gritty sci-fi atmosphere.
- #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: Co-op 18.1%, Open World 16.2%, FPS 13.4%, Online Co-Op 12.2%, Multiplayer 9.6%
Why You'll Like It: Features a unique mobile base-building mechanic that requires players to manage and defend their vessel while exploring.
- #23 Approximately Up
77% matchVery Positive94% of 1,121 reviews2026
Dev: Approximately Games
Windows
Median: 12.9 hrsMean: 33.7 hrs≥1hr: 89%
Build, crash, rebuild! Explore new planets in co-op multiplayer with your fully modular spaceship made from whatever bolts together long enough to fly. Mount giant thrusters, annoying cables, and everything in between. Complete wild missions, face the dangers of space and argue with your crew!
Why similar: Space Sim 45.3%, Co-op 12.3%, Multiplayer 8.9%, Open World 8.5%, Simulation 7.9%
- #24 StarMade
81% 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 27.8%, Open World 17.2%, Space Sim 15.8%, Multiplayer 9.5%, Sci-fi 9.4%
Why You'll Like It: A voxel-based space sandbox that allows for immense creativity in ship building and exploration.
- #25 Between the Stars
78% matchMostly Positive74% of 2,502 reviews2024
Dev: Isolated Games
Windows
Median: 2.5 hrsMean: 6.4 hrs≥1hr: 72%
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 34.2%, Space 24.8%, Sci-fi 8.9%, RPG 8.8%, Simulation 8.2%
Why You'll Like It: An RPG-heavy space-sim that puts you in command of a ship, focusing on combat and decision-making.
- #26 Evochron Mercenary
80% matchMostly Positive77% of 436 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 30.8%, Space 26.8%, Open World 12%, Simulation 10.5%, Sci-fi 9.3%
Why You'll Like It: A highly technical space-sim that offers a free-form, open-world experience with a focus on flight mechanics.
- #27 Star Conflict
79% matchMostly Positive73% of 15,239 reviews2013
Dev: Star Gem Inc.Pub: Gaijin Network Ltd
Windows · Mac · Linux
Median: 2.0 hrsMean: 34.6 hrs≥1hr: 62%
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 38.5%, Open World 15.8%, Online Co-Op 13.1%, PvE 12.6%, Sci-fi 11.1%
Why You'll Like It: A fast-paced, massively multiplayer space-sim that focuses on cooperative fleet combat and ship customization.
- #28 Wildgate
76% matchMostly Positive76% of 5,659 reviews2025
Dev: Moonshot GamesPub: Dreamhaven
Windows
Median: 6.8 hrsMean: 13.6 hrs≥1hr: 85%
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 26.5% ★, Space Sim 15.2%, Space 9.7%, Co-op 8.8%, FPS 6.9%
- #29 Destination Sol
78% 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 40.4%, Open World 28.9%, RPG 16.8%, Action 5.1%, Sci-fi 5%
Why You'll Like It: An indie space exploration game that offers a simple but engaging take on ship-based combat and travel.
- #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 31%, Space 14.2%, Co-op 12%, Online Co-Op 11.8%, Sci-fi 9%
- #31 SpaceCraft
75% 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 24.9%, Space 13.7%, Open World 11.6%, Co-op 9%, Sci-fi 8.6%
- #32 Miner Wars 2081
79% matchMostly Negative35% of 392 reviews2012
Dev: Keen Software House
Windows
Median: 36 minMean: 4.9 hrs≥1hr: 40%
Operate an advanced mining ship in a fully destructible and open-world environment!
Why similar: Space 30.8%, RPG 21.1%, Simulation 20.3%, Sci-fi 11.2%, Action 8.4%
Why You'll Like It: An action-adventure space game that focuses on mining and combat in a destructible environment.
- #33 Star Trek Online
76% matchMostly Positive79% of 21,376 reviews2012
Dev: Cryptic StudiosPub: Arc Games
Windows
Median: 6.8 hrsMean: 135.2 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 26.3%, Sci-fi 17.9%, Open World 14.2%, RPG 8.2%, Multiplayer 7.8%
- #34 Stars End
75% 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: Space Sim 18.8%, Co-op 13.2%, Space 11.3%, Open World 8.7%, Online Co-Op 8.4%
- #35 Rodina
74% matchVery Positive93% of 1,333 reviews2014
Dev: Elliptic Games
Windows
Median: 2.9 hrsMean: 6.3 hrs≥1hr: 72%
A single-developer passion project. A seamless full scale solar system. Thrilling action. Be part of an incredible journey as a Universe is built from the ground up!
Why similar: Space 28.6%, Space Sim 21.2%, Open World 19.5%, Exploration 10.5%, Sci-fi 10.5%
- #36 Starcom: Nexus
73% matchVery Positive90% of 2,322 reviews2019
Dev: Wx3 Labs, LLC
Windows · Linux
Median: 4.0 hrsMean: 13.5 hrs≥1hr: 85%
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 29.6%, Space Sim 25.1%, Sci-fi 12.7%, Open World 12.2%, Exploration 8.2%
- #37 Warspace 2
73% matchMixed61% of 87 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 29.4%, Space 14.4%, PvE 10%, Co-op 9.4%, Open World 9.3%
- #38 Jitter
70% matchVery Positive85% of 171 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 39.1%, Space 19.4%, Open World 16.7%, Sci-fi 11.7%, Exploration 8.1%
- #39 STARSEEKER: Astroneer Expeditions
71% matchMixed58% of 891 reviews2026
Dev: System Era SoftworksPub: Devolver Digital
Windows
Explore alien worlds and launch Offensives against the Void as a member of the ESS Starseeker crew. Embark on timed Expeditions to investigate alien flora and fauna, upgrade your gear, and complete missions to save the Universe.
Why similar: Space 23.6%, Sci-fi 12.8%, Online Co-Op 12.3%, Open World 11%, Multiplayer 10.1%
- #40 Hardspace: Shipbreaker
70% 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 30%, Space 28.9%, Sci-fi 17%, Simulation 10.4%, First-Person 8%
- #41 Interstellar Marines
74% matchMixed53% of 7,877 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 22.8%, FPS 19.6%, Sci-fi 13.7%, Multiplayer 12.8%, Space 7.5%
- #42 Starcom: Unknown Space
69% matchVery Positive92% of 4,500 reviews2024
Dev: Wx3 Labs, LLC
Windows
Median: 8.4 hrsMean: 17.0 hrs≥1hr: 83%
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 33.9%, Space 24.2%, Open World 16.1%, Sci-fi 9.2%, Exploration 8.4%
- #43 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 37.2%, Online Co-Op 15.3%, PvE 13.4%, Space 12.4%, Multiplayer 11.7%
- #44 Farworld Pioneers
73% matchMostly Negative37% of 703 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 20%, Online Co-Op 14.3%, Sci-fi 12.8%, Multiplayer 11.2%
- #45 EVE Online
72% 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 29.5%, Space 13.7%, Open World 12.2%, Co-op 10.3%, PvE 7.9%
- #46 Artemis Spaceship Bridge Simulator
71% matchVery Positive90% of 468 reviews2013
Windows
Median: 2.0 hrsMean: 3.3 hrs≥1hr: 61%
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 28.3%, Simulation 22.6%, Co-op 22.2%, Multiplayer 12.2%, Sci-fi 10.2%
- #47 Planet Explorers
71% 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 34.3%, Multiplayer 15.1%, Co-op 10.5%, Sci-fi 10.3%, Exploration 10.3%
- #48 Star Valor
69% matchVery Positive88% of 3,520 reviews2022
Dev: Rafael Burgos
Windows
Median: 4.1 hrsMean: 29.1 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: Spaceships 33.7% ★, Space Sim 16.8%, Space 15.7%, Open World 12.1%, Sci-fi 8.3%
- #49 Slipstream: Rogue Space
68% matchVery Positive92% of 146 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 28.7%, Class-Based 17.2%, Co-op 12.8%, Nonlinear 10.2%, Sci-fi 8.9%
- #50 Mars First Logistics
66% matchVery Positive95% of 3,795 reviews2025
Dev: Shape Shop
Windows
Median: 4.3 hrsMean: 10.4 hrs≥1hr: 80%
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 29.6%, Co-op 21.1%, Robots 18.4%, Open World 12.3%, Multiplayer 7.1%
- #51 Star Explorers
69% matchVery Positive82% of 254 reviews2018
Dev: Schmidt Workshops
Windows
Median: 3.5 hrsMean: 4.7 hrs≥1hr: 79%
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%, Open World 12.8%, Nonlinear 9.7%, Sci-fi 7.4%
- #52 Astro Colony
65% 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 29.2%, Space 22.7%, Open World 12.6%, Multiplayer 10.8%, Simulation 7.7%
- #53 Moonbase Alpha
68% matchVery Positive91% of 12,875 reviews2010
Dev: Virtual HeroesPub: NASA
Windows
Median: 54 minMean: 3.7 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 33.4%, Multiplayer 13.8%, Online Co-Op 13.2%, Open World 11.7%, Simulation 11.4%
- #54 Space Engineers 2
65% 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 32.1%, Space 21.6%, Open World 17.2%, Sci-fi 13.2%, Exploration 8%
- #55 Starbound
66% matchVery Positive90% of 123,321 reviews2016
Dev: Chucklefish
Windows · Mac · Linux
Median: 17.0 hrsMean: 64.5 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 20.6%, Open World 16.1%, Co-op 14.3%, Online Co-Op 13.6%, Multiplayer 10.4%
- #56 POLARIS™
67% 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: Space 14.2%, Online Co-Op 14.2%, Open World 13%, Co-op 12.7%, PvE 10.7%
- #57 Guns of Icarus Alliance
67% matchMostly Positive76% of 1,441 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 31.3%, Multiplayer 21.8%, Simulation 17.9%, Adventure 7.7%, Action 6.9%
