- #1 EVE Online
97% matchMostly Positive73% of 39,351 reviews2010
Dev: Fenris Creations
Windows · Mac
Median: 3.0 hrsMean: 138.6 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: Massively Multiplayer 38.3%, Space 32.3%, Simulation 11.5%, Sci-fi 9.2%, Strategy 8.7%
Why You'll Like It: This is the definitive persistent space MMO, offering the most complex player-driven economy and large-scale faction warfare similar to the core of Ascent.
- #2 Elite Dangerous
96% matchMostly Positive77% of 107,282 reviews2015
Dev: Frontier Developments
Windows
Median: 18.2 hrsMean: 148.6 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 40.4%, Massively Multiplayer 37.1%, Sci-fi 10.4%, Simulation 9.3%, Strategy 2.8%
Why You'll Like It: It provides an unparalleled sense of scale and exploration within a realistic, massive galaxy that appeals to any fan of deep space simulation.
- #3 Space Engineers
96% matchVery Positive89% of 134,313 reviews2019
Dev: Keen Software House
Windows
Median: 9.0 hrsMean: 96.4 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 59.3%, Simulation 21%, Strategy 19.7%
Why You'll Like It: This game excels at the player-built infrastructure and modular ship construction that forms the backbone of the Ascent experience.
- #4 X4: Foundations
95% matchMostly Positive80% of 30,013 reviews2018
Dev: Egosoft
Windows · Linux
Median: 5.0 hrsMean: 95.3 hrs≥1hr: 80%
Your journey to building a vast space empire begins behind the controls of a single ship. Explore, trade, fight, and build as you rise to command fleets, stations, and entire economies in a living, fully simulated universe that reacts to every decision.
Why similar: Space 52.2%, Simulation 16.5%, Sci-fi 16.1%, Strategy 15.1%
Why You'll Like It: It offers an incredibly deep simulation of space trade, station building, and fleet management that mirrors the strategic depth found in Ascent.
- #5 Avorion
94% matchVery Positive90% of 14,549 reviews2020
Dev: Boxelware
Windows · Mac · Linux
Median: 18.8 hrsMean: 99.5 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 61.1%, Sci-fi 19.6%, Simulation 19.2%
Why You'll Like It: It combines procedural galaxy exploration with modular ship building, allowing for a highly personalized experience in a vast space sandbox.
- #6 Starbase
94% matchMixed56% of 6,753 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: Massively Multiplayer 49.9%, Space 29.4%, Simulation 11%, Sci-fi 9.7%
Why You'll Like It: A massive multiplayer space game focused on building and destruction with a fully destructible environment and complex engineering systems.
- #7 Empyrion - Galactic Survival
93% matchMostly Positive78% of 34,392 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 51%, Simulation 20.2%, Sci-fi 15%, Strategy 13.8%
Why You'll Like It: This game offers a comprehensive survival and colonization experience across a massive, procedurally generated galaxy.
- #8 StarMade
91% matchMixed68% of 2,991 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 56.6%, Massively Multiplayer 16%, Sci-fi 10.8%, Simulation 7.3%, Strategy 6.4%
Why You'll Like It: A voxel-based space sandbox that allows for immense creativity in ship and station design, much like the player-built world of Ascent.
- #9 Infinity: Battlescape
91% matchVery Positive80% of 764 reviews2019
Dev: I-Novae Studios, LLC
Windows
Median: 2.9 hrsMean: 9.8 hrs≥1hr: 71%
Infinity: Battlescape is a multiplayer space combat sim supporting hundreds of players on a single server. Join one of the corporate factions and fight for domination of a seamless, true-to-scale procedural star system. Participate in massive space and planetary battles involving hundreds of ships.
Why similar: Massively Multiplayer 45.6%, Space 32.2%, Simulation 11.7%, Sci-fi 6.6%, Indie 3.9%
Why You'll Like It: It captures the massive-scale space combat and seamless planetary transitions that define the technical ambition of space simulation games.
- #10 Prosperous Universe
90% matchMostly Positive73% of 1,103 reviews2022
Dev: simulogics
Windows
In Prosperous Universe start your galactic empire by trading on the real-time market exchange with other real players. Build your 1st base from humble beginnings & watch as your business flourishes with complex supply chain strategies. Economics, politics & realism fuel this immersive business MMO.
Why similar: Massively Multiplayer 41.3%, Space 28%, Sci-fi 11.3%, Simulation 10.1%, Strategy 9.3%
Why You'll Like It: This title focuses heavily on the economic and logistical side of space colonization, perfect for players who enjoy the trading and management aspects of Ascent.
- #11 Interstellar Rift
89% matchMixed68% of 1,666 reviews2020
Dev: Split PolygonPub: Iceberg Interactive
Windows
Median: 4.2 hrsMean: 33.1 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 60%, Sci-fi 20.1%, Simulation 19.8%
Why You'll Like It: This game focuses on multiplayer ship construction and management, requiring players to build and maintain their own vessels in a persistent universe.
- #12 Hades' Star
88% matchMostly Positive73% of 2,682 reviews2019
Dev: Parallel Space Inc
Windows · Mac
Median: 1.6 hrsMean: 54.6 hrs≥1hr: 55%
A unique space strategy game where thousands of players participate in one shared galaxy.
Why similar: Space 40.9%, Massively Multiplayer 40%, Strategy 11.1%, Sci-fi 6.8%, Indie 1.2%
Why You'll Like It: A persistent space strategy game that focuses on long-term resource management and cooperative exploration in a shared galaxy.
- #13 Celestial Command
89% matchMixed62% of 704 reviews2014
Dev: Science Interactive
Windows · Linux
Median: 1.5 hrsMean: 6.3 hrs≥1hr: 62%
Mine asteroids, salvage space debris, design your own small or massive spacecraft using individual functional components, complete missions, and engage in battles against enemies in a vast galaxy with realistic physics based on orbital mechanics or in a classic physics mode.
Why similar: Space 54.7%, Simulation 18.6%, Strategy 12.5%, Sci-fi 9.5%, Indie 4.7%
Why You'll Like It: This game features physics-based space construction and management, appealing to players who enjoy the technical side of space engineering.
- #14 No Man's Sky
86% matchVery Positive85% of 414,381 reviews2016
Dev: Hello Games
Windows · Mac
Median: 20.1 hrsMean: 70.7 hrs≥1hr: 94%
No Man's Sky is a game about exploration and survival in an infinite procedurally generated universe.
Why similar: Space 71.6%, Sci-fi 19.6%, Simulation 5.9%, Indie 2.9%
Why You'll Like It: While more exploration-focused, its vast scale and base-building mechanics provide a similar sense of wonder and discovery in a massive universe.
- #15 Astrox Imperium
87% matchVery Positive84% of 1,249 reviews2019
Dev: Jace Masula
Windows
Median: 4.1 hrsMean: 16.2 hrs≥1hr: 66%
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 67.4%, Simulation 18.7%, Sci-fi 8.7%, Indie 5.1%
Why You'll Like It: A deep, single-player space simulation that emphasizes mining, trading, and combat progression in a vast, open galaxy.
- #16 Dyson Sphere Program
84% matchOverwhelmingly Positive97% of 91,542 reviews2021
Dev: Youthcat StudioPub: Gamirror Games
Windows
Median: 13.0 hrsMean: 75.8 hrs≥1hr: 84%
Build the most efficient intergalactic factory in space simulation strategy game Dyson Sphere Program! Harness the power of stars, collect resources, plan and design production lines and develop your interstellar factory from a small space workshop to a galaxy-wide industrial empire.
Why similar: Space 60.3%, Simulation 14.6%, Sci-fi 14.1%, Strategy 9.5%, Indie 1.5%
Why You'll Like It: While focused on automation, its grand scale and focus on industrializing a galaxy provide a satisfying sense of progression and construction.
- #17 Astro Colony
82% matchVery Positive81% of 2,699 reviews2026
Dev: Terad Games
Windows
Median: 4.4 hrsMean: 16.2 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 60.2%, Simulation 18.2%, Strategy 16.1%, Indie 5.5%
Why You'll Like It: A space-based automation and base-building game that tasks players with managing resources and expanding their reach across the stars.
- #18 Stationeers
83% matchVery Positive88% of 9,229 reviews2017
Dev: RocketWerkz
Windows
Median: 10.2 hrsMean: 85.3 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 50.2%, Science 32%, Sci-fi 17.8%
Why You'll Like It: A hardcore engineering simulation that requires players to manage complex systems, perfect for those who enjoy the technical depth of Ascent.
- #19 Star Sonata 2
84% matchMixed67% of 293 reviews2020
Dev: Landauer Games
Windows
Median: 2.1 hrsMean: 60.0 hrs≥1hr: 60%
Star Sonata 2 is a space sandbox MMO that combines elements of action, RPG, and empire creation into a truly unique MMO. Explore the sandbox style universe, build persistent bases, construct trade ships, and even fight your way to the top and claim the Emperor’s Throne!
Why similar: Space 65.1%, Science 34.9%
Why You'll Like It: An older but deep sandbox MMORPG that emphasizes space combat, exploration, and player-controlled territory.
- #20 Hardspace: Shipbreaker
78% matchVery Positive89% of 22,322 reviews2022
Dev: Blackbird Interactive
Windows
Median: 4.7 hrsMean: 24.1 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 55.3%, Sci-fi 18.2%, Simulation 17.7%, Strategy 8.8%
Why You'll Like It: This game focuses on the industrial, blue-collar side of space, tasking players with the complex, physics-based work of salvaging ships.
- #21 PULSAR: Lost Colony
79% matchVery Positive90% of 5,732 reviews2021
Dev: Leafy Games
Windows · Mac · Linux
Median: 7.3 hrsMean: 16.7 hrs≥1hr: 87%
The co-op open-world space sim where everyone has a role! Pilot the ship. Reroute power. Launch nukes. Explore alien planets. Research new talents. Work together to find the Lost Colony! ...or just deliver some biscuits
Why similar: Space 58%, Simulation 21.6%, Sci-fi 20.4%
Why You'll Like It: A cooperative space simulation that requires players to work together to operate a ship, emphasizing the importance of teamwork and system management.
- #22 Starship Corporation
82% matchMixed42% of 557 reviews2018
Dev: Coronado GamesPub: Iceberg Interactive
Windows
Median: 4.3 hrsMean: 9.7 hrs≥1hr: 89%
A sci-fi simulation game, in which players must design, assemble and test spaceships, in a bid to build a supreme Galactic Mega-Corporation. Gain your reputation by engineering and selling your own spacecraft, testing them to the limit in RTS missions and simulated emergency and combat situations.
Why similar: Space 36.5%, Simulation 27.2%, Strategy 21.5%, Indie 7.6%, Sci-fi 7.2%
Why You'll Like It: This game focuses on the design, construction, and management of spaceships, mirroring the industrial focus of the seed game.
- #23 The Infinite Black
81% matchMixed67% of 215 reviews2016
Dev: SpellbookPub: www.Spellbook.com
Windows · Mac · Linux
Median: 5.8 hrsMean: 83.8 hrs≥1hr: 74%
Fleet up with thousands of players in The Infinite Black -- The wildly popular online space combat and adventure game! Command massive spaceships, form powerful corporations, and battle it out in never-ending intergalactic warfare!
Why similar: Massively Multiplayer 56.7%, Space 25.3%, Strategy 13.5%, Indie 4.5%
Why You'll Like It: A classic, persistent space strategy MMO that focuses on combat, exploration, and building a fleet in a shared universe.
- #24 VoidExpanse
81% matchMostly Positive71% of 768 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 60.8%, Sci-fi 13.3%, Strategy 11.2%, Simulation 10.3%, Indie 4.4%
Why You'll Like It: An open-world space RPG that features a dynamic, procedurally generated galaxy and deep character progression.
- #25 SpaceCraft
77% matchMixed65% of 2,687 reviews2026
Dev: Shiro Games
Windows
Median: 13.4 hrsMean: 47.3 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: Massively Multiplayer 45.2%, Space 32.8%, Sci-fi 11.6%, Simulation 10.4%
- #26 Objects in Space
80% matchMixed52% of 621 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 45.4%, Simulation 22.7%, Strategy 18.3%, Indie 7.1%, Sci-fi 6.6%
Why You'll Like It: A realistic, retro-styled space simulation that focuses on the gritty, technical reality of operating a ship in a vast, dangerous universe.
- #27 Solar Expanse - Space Exploration Manager
75% matchVery Positive88% of 1,295 reviews2026
Dev: SpaceOpsPub: Games Operators
Windows
Median: 4.8 hrsMean: 14.7 hrs≥1hr: 77%
Explore the Solar System. Mine and drop asteroids. Colonize and terraform. Lead the space race and compete with other corporations on your way to profit. Watch the expansion of human race over the centuries.
Why similar: Space 40.1%, Science 22.6%, Simulation 13.2%, Sci-fi 11.1%, Strategy 9.1%
- #28 Rebel Galaxy Outlaw
78% matchMixed63% of 1,188 reviews2020
Dev: Double Damage Games
Windows
Median: 42 minMean: 9.0 hrs≥1hr: 43%
Out of cash, out of luck, out on the fringe. Juno Markev has a killer to tail, a debt to pay, and more trouble headed her way. Rebel Galaxy Outlaw takes place in a greasy, blue-collar world of outlaws, truckers, cops and thieves.
Why similar: Space 46.6%, Sci-fi 28.8%, Simulation 24.6%
Why You'll Like It: This game captures the feel of space trading and combat with a focus on the gritty, blue-collar side of space life.
- #29 Starfighter: Infinity
76% matchVery Positive91% of 129 reviews2019
Dev: Ben Olding Games
Windows · Mac · Linux
A space based MMORPG with a focus on ‘dogfighting’ style action and exploration. Features a huge array of ships, imaginative weapons and ship upgrades with more being added all the time. Explore the galaxy, fight other players, form your own organisations, mine asteroids to craft new items, loot rare weapons from alien races, and more...
Why similar: Massively Multiplayer 72.7%, Space 21%, Indie 6.2%
- #30 Star Hunter - Infinite Lagrange
76% matchMixed57% of 1,061 reviews2021
Dev: NetEase Games
Windows
Median: 2.7 hrsMean: 89.9 hrs≥1hr: 61%
In a remote corner of the Milky Way, you, a star hunter, will control a fleet, take on a wide variety of bounty contracts and missions, and venture into the vastness of space. You will hunt for mysterious items for your employers and explore specific targets in uncharted territory.
Why similar: Massively Multiplayer 47.5%, Space 28.6%, Strategy 13.9%, Simulation 9.9%
- #31 Azulgar: Star Commanders
77% 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 40.4%, Simulation 21%, Massively Multiplayer 16.7%, Sci-fi 14.6%, Indie 7.3%
- #32 Starship EVO
74% matchVery Positive84% of 1,522 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 58.1%, Simulation 22.1%, Sci-fi 11.7%, Indie 8.2%
- #33 Andromeda: Rebirth of Humanity
74% matchMixed65% of 117 reviews2021
Dev: Null Reference Games
Windows · Linux
Andromeda is a hybrid between a Space 4X and an MMO. An online universe sandbox with 2 galaxies full of planets to colonize. Build structures like Mines to generate resources to build ships and engage in fleet battles with NPCs and other players, or just sit and chat with the friendly community.
Why similar: Massively Multiplayer 38%, Space 25.7%, Strategy 19.5%, Sci-fi 8.5%, Simulation 6.3%
- #34 Star Conflict
73% matchMostly Positive73% of 15,224 reviews2013
Dev: Star Gem Inc.Pub: Gaijin Network Ltd
Windows · Mac · Linux
Median: 2.0 hrsMean: 34.7 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: Massively Multiplayer 60.3%, Science 25.2%, Sci-fi 14.5%
- #35 Starship Theory
71% matchMixed50% of 1,130 reviews2026
Dev: Reconnect Software
Windows · Mac · Linux
Median: 7.0 hrsMean: 14.9 hrs≥1hr: 75%
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: Space 47.2%, Simulation 18.6%, Strategy 16.8%, Sci-fi 11.9%, Indie 5.5%
- #36 Subspace Discovery
72% matchMostly Positive75% of 143 reviews2023
Dev: FLICK Comp GmbH
Windows
Fly through Subspace, build your own ship, and engage in epic battles. Mine asteroids and research new technologies. Uncover the origins of the alien homeworld by solving weekly events in this Co-op PvE MMO.
Why similar: Massively Multiplayer 46.7%, Space 35.1%, Sci-fi 10.2%, Strategy 8%
- #37 Stars Reach
70% matchMixed58% of 419 reviews2026
Dev: Playable Worlds, Inc.
Windows
Explore a living galaxy in Stars Reach. Discover new planets, build settlements, and shape environments that react to everything you do. Players work together to transform untamed worlds into thriving civilizations across a single shared universe.
Why similar: Massively Multiplayer 77.4%, Sci-fi 22.6%
- #38 Endless Sky
71% matchVery Positive92% of 7,090 reviews2015
Dev: Michael Zahniser
Windows · Mac · Linux
Median: 1.0 hrsMean: 13.7 hrs≥1hr: 50%
Endless Sky is a 2D space trading and combat game inspired by the classic Escape Velocity series. Work your way up from a relatively wimpy shuttle, cargo ship, or fighter, to a highly upgraded and customized flagship or to a massive fleet of warships or freighters.
Why similar: Space 72.4%, Sci-fi 12.4%, Simulation 10.3%, Strategy 2.7%, Indie 2.2%
- #39 Solargene
69% matchMostly Positive76% of 848 reviews2026
Dev: Alexander Semenov
Windows
Median: 4.2 hrsMean: 33.7 hrs≥1hr: 70%
Take Command of a Space Corporation in the Sci-Fi Simulator Solargene! Manage personnel, design and develop colonies and orbital stations across the solar system! Mine resources, establish logistics, research cutting-edge technologies, trade, and complete missions
Why similar: Space 53.8%, Strategy 19.5%, Sci-fi 14.4%, Simulation 12.3%
- #40 Periphery Online
69% matchMixed72% of 54 reviews2026
Dev: Aleksandr Nagaev
Windows
A refugee capsule lands on an uninhabited planet. You have to survive, rebuild civilization and, if possible, regain control over the Earth. One big universe, one endless pvp session for all players.
Why similar: Massively Multiplayer 45.3%, Space 32.9%, Sci-fi 11.2%, Strategy 10%, Indie 0.6%
- #41 Space Engineers 2
68% matchMostly Positive75% of 5,449 reviews2025
Dev: Keen Software House
Windows
Median: 1.9 hrsMean: 11.1 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 39%, Science 20.4%, Sci-fi 13.5%, Simulation 12.9%, Strategy 10.7%
- #42 Reassembly
70% matchVery Positive94% of 4,094 reviews2015
Dev: Anisoptera GamesPub: Indie Voyage
Windows · Mac · Linux
Median: 5.0 hrsMean: 26.1 hrs≥1hr: 84%
A spaceship building and universe-exploration game. Collect resources, expand and grow your fleet, and conquer your personal galaxy. Stellar ambience by Peaks.
Why similar: Space 67.9%, Strategy 16.9%, Sci-fi 8.1%, Indie 5.1%, Simulation 2%
- #43 The Sentient
73% matchMostly Negative39% of 83 reviews2016
Dev: Uncaged Studios
Windows
Play as an A.I tasked with helping mankind explore the vastness of space. Customize your ship, recruit a crew, battle alien vessels, research new technology and explore randomly generated universes.
Why similar: Space 41.9%, Simulation 24.9%, Strategy 23.9%, Indie 9.3%
- #44 Starminer
66% matchMostly Positive73% of 1,858 reviews2026
Dev: CoolAndGoodGames
Windows
Median: 7.2 hrsMean: 20.1 hrs≥1hr: 81%
Design and build a massive interstellar fleet in this simulation sandbox. Strip space of its minerals for profit, but stay alert: your greed attracts the alien. Master deep base-building and deploy warships to protect your empire in immersive real-time space.
Why similar: Space 73.5%, Sci-fi 26.5%
- #45 Universal Combat CE
72% matchMixed42% of 267 reviews2015
Dev: 3000AD
Windows
Median: 36 minMean: 15.9 hrs≥1hr: 45%
The ultimate space capital ship combat compendium is the evolution of hard core space combat sims. The only game of its kind currently in existence.
Why similar: Space 45.8%, Sci-fi 16.4%, Simulation 16.2%, Strategy 15.5%, Massively Multiplayer 5.4%
- #46 Stars End
68% matchMixed61% of 1,428 reviews2023
Dev: Reverie World StudiosPub: indie.io
Windows
Median: 2.5 hrsMean: 10.2 hrs≥1hr: 81%
Stars End is a sci-fi survival sandbox set on the wild frontier of a distant star system. Play solo or host your own server as you craft, build, and battle to survive in a galaxy shaped by danger, discovery, and your own grit.
Why similar: Massively Multiplayer 52%, Space 29.7%, Simulation 9.6%, Sci-fi 8.7%
- #47 Stellar Odyssey
66% matchMostly Positive72% of 76 reviews2026
Dev: Stellar Games
Windows
An Idle Space MMORPG where you progress at your own pace, but the universe is built together. Explore a procedural galaxy of nearly 50 million star systems alone — or join a Squadron to pool resources, raise space stations, upgrade shared buildings, and expand across the stars as one.
Why similar: Massively Multiplayer 55%, Space 45%
- #48 Jumpdrive
70% matchMostly Negative39% of 164 reviews2018
Dev: Meteoric Games
Windows
Jumpdrive is a sandbox space sim set in an alternative future heavily inspired by classic 80s sci-fi. Fight, trade and explore in a massive procedurally generated galaxy of millions of planets and stars. Amass money and power and upgrade and purchase new ships.
Why similar: Space 63.3%, Simulation 27.1%, Indie 9.7%
- #49 SpaceBourne
67% matchMostly Positive76% of 815 reviews2020
Dev: Burak Dabak
Windows
Median: 2.2 hrsMean: 9.7 hrs≥1hr: 60%
Spacebourne is an open space exploration game with Rpg elements. Its world consists of different factions at war. You as an expert pilot need to choose your side or be on no one's side and create a force of your own. Load up your weapons, Ready your ship and warp to adventure.
Why similar: Space 66.2%, Simulation 25.7%, Indie 8.2%
- #50 Ways of History
69% matchMixed53% of 257 reviews2017
Dev: Glyph Worlds
Windows
Median: 1.4 hrsMean: 14.5 hrs≥1hr: 56%
Hardcore real-time strategy with a long-term round. Development of your civilization from caves to space. Huge world. Thousands of players. 240+ sciences and technologies. About 100 troops. 4 races. 50+ resource deposits. War, trade, science, construction...
Why similar: Massively Multiplayer 72.7%, Strategy 22.2%, Indie 5.1%
- #51 Sector Space
64% matchVery Positive93% of 139 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: Simulation 49.3%, Space 33.5%, Sci-fi 11.3%, Indie 5.9%
- #52 Project Entropy
67% matchMixed53% of 258 reviews2024
Dev: FunPlus International AG
Windows
Welcome, commander, to Project Entropy- an ultimate Sci-Fi and role-playing game with battles in space. In this immersive MMO experience, you will command alien civilizations, conquer uncharted planets, and build Hero fleets.
Why similar: Simulation 33.8%, Sci-fi 33.3%, Strategy 32.9%