- #1 Hades' Star
97% matchMostly Positive73% of 2,643 reviews2019
Dev: Parallel Space Inc
Windows · Mac
Median: 1.6 hrsMean: 55.7 hrs≥1hr: 55%
A unique space strategy game where thousands of players participate in one shared galaxy.
Why similar: Space 32.3%, Massively Multiplayer 29%, RTS 10.3%, Strategy 9.1%, Sci-fi 5.5%
Why You'll Like It: A persistent, strategic space game that emphasizes long-term fleet management and cooperative play in a shared galaxy.
- #2 Galaxy Control: 3D Strategy
96% matchMixed59% of 530 reviews2016
Dev: FX Games Media
Windows · Mac
Median: 1.1 hrsMean: 25.0 hrs≥1hr: 51%
Build your base and battle with other players to control the galaxy! Galaxy Control is an ultimate space combat strategy game with fast-paced combats! Gather minerals and extract uranium, defend your base with laser towers, missile turrets, cannons, walls and mines.
Why similar: Massively Multiplayer 55.6%, Space 25.1%, Strategy 17.4%, Action 1.8%
Why You'll Like It: Offers a similar blend of base-building and offensive fleet deployment in a sci-fi setting.
- #3 Sins of a Solar Empire II
95% matchVery Positive84% of 8,167 reviews2024
Dev: Ironclad Games CorporationPub: Stardock Entertainment
Windows
Median: 9.5 hrsMean: 28.7 hrs≥1hr: 85%
Battle for galactic dominance in this real-time 4X strategy game with unrivaled scale! You’ll explore, expand, exploit, and exterminate through military force, diplomacy, trade, culture, influence, and other underhanded tactics.
Why similar: Space 31.1%, RTS 21.2%, Strategy 10.2%, Base Building 9.2%, PvE 7.5%
Why You'll Like It: Provides a deep, real-time space strategy experience with a focus on fleet management and tactical positioning.
- #4 Nova Empire
96% matchMixed53% of 283 reviews2022
Dev: Gamebear Tech
Windows
Median: 1.9 hrsMean: 12.5 hrs≥1hr: 57%
Build up a Space Empire and establish control of the Galaxy and the Universe! Nova Empire is a multiplayer space game in which the aim is to build your empire and conquer the galaxy in epic space battles against your rivals with other allies worldwide!
Why similar: Base Building 14.6%, PvE 13.4%, PvP 13.1%, Strategy 12.2%, Sci-fi 11%
Why You'll Like It: A real-time space strategy game focused on base building, alliance warfare, and tactical fleet combat.
- #5 Planetary Annihilation: TITANS
94% matchVery Positive85% of 14,430 reviews2015
Dev: Planetary Annihilation Inc
Windows · Mac · Linux
Median: 3.9 hrsMean: 17.4 hrs≥1hr: 73%
Wage war across entire solar systems with massive armies at your command. Annihilate enemy forces with world-shattering TITAN-class units, and demolish planets with massive super weapons!
Why similar: RTS 25.5%, Space 16.8%, Base Building 14.8%, War 12.1%, Strategy 9.3%
Why You'll Like It: A large-scale real-time strategy game that captures the intensity of managing massive fleets across multiple celestial bodies.
- #6 Star Conflict
94% 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: Massively Multiplayer 40.1%, Sandbox 16.4%, Open World 15.4%, PvE 13.6%, Sci-fi 10.6%
Why You'll Like It: A fast-paced space combat MMO that offers a more action-oriented perspective on fleet-based warfare.
- #7 Cosmoteer: Starship Architect & Commander
92% matchVery Positive95% of 12,431 reviews2022
Dev: Walternate Realities
Windows
Median: 19.3 hrsMean: 40.4 hrs≥1hr: 92%
Design and simulate the starships of your dreams! Command your ship or fleet in epic battles and manage your crew while exploring a dangerous galaxy. Play alone or with friends, test your ships in online PvP, and let your imagination reach for the stars!
Why similar: Space 34%, Sci-fi 16.9%, Survival 12.2%, Strategy 11.2%, 2D 9.1%
Why You'll Like It: Allows for intricate ship building and tactical combat, emphasizing the engineering aspect of fleet management.
- #8 Starpoint Gemini Warlords
93% matchMostly Positive73% of 3,569 reviews2017
Dev: Little Green Men Games
Windows
Median: 4.1 hrsMean: 11.0 hrs≥1hr: 88%
Strategy from the front lines! Starpoint Gemini Warlords combines 3rd person capital spaceship combat with 4X strategy and RPG gameplay elements. Build mighty war fleets and send them into battle or lead them into combat yourself. Become the Warlord and conquer the Gemini system!
Why similar: Space 33.7%, Base Building 17.2%, Open World 15%, Sandbox 13.1%, Strategy 10.2%
Why You'll Like It: Combines fleet management, base building, and tactical combat in a persistent open-world space environment.
- #9 EVE Online
91% matchMostly Positive74% of 38,402 reviews2010
Dev: CCP
Windows · Mac
Median: 3.0 hrsMean: 136.7 hrs≥1hr: 73%
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 23.7%, Space 21.7%, Open World 11.2%, Sandbox 10%, PvP 8.1%
Why You'll Like It: The ultimate persistent space MMO, offering unparalleled depth in economy, fleet warfare, and social strategy.
- #10 Second Galaxy
91% matchMixed52% of 1,200 reviews2019
Dev: Zilong Game Limited
Windows
Median: 36 minMean: 9.4 hrs≥1hr: 38%
Second Galaxy is an open world sci-fi game that combines RPG and SLG elements. You can navigate hundreds of different space ships, team up with players to form alliances, and engage in intergalactic battles with other players around the world.
Why similar: Massively Multiplayer 43.9%, Space 29.1%, Open World 10.9%, Strategy 9.6%, Sci-fi 6.4%
Why You'll Like It: A massive open-world space MMO that blends RPG elements with large-scale strategic fleet battles.
- #11 NEBULOUS: Fleet Command
89% matchVery Positive81% of 3,819 reviews2022
Dev: Eridanus IndustriesPub: Hooded Horse
Windows
Median: 4.9 hrsMean: 30.4 hrs≥1hr: 77%
Take command of your hand-tailored fleet of space warships and use realistic radar, electronic warfare, advanced movement controls in 3D space, and precision targeting to outmaneuver and outwit your opponents in a simulation-heavy tactical space game like no other.
Why similar: RTS 26.4%, War 21.5%, Sandbox 15.9%, Open World 14.3%, Strategy 11.7%
Why You'll Like It: Offers a highly realistic tactical space combat experience where fleet composition and positioning are paramount.
- #12 Pixel Starships
88% matchMostly Positive73% of 2,914 reviews2023
Dev: SavySoda
Windows · Mac · Linux
Median: 2.3 hrsMean: 24.8 hrs≥1hr: 64%
Pixel Starships is an FTL-style online sci-fi strategy builder and management game with a competitive PVP tournament. Set in the retro galaxy, your role is to explore space, meet aliens, and develop your ship, crew and AI. The game contains deep strategic and 4x elements. PSS is community-driven.
Why similar: Massively Multiplayer 29.7%, Space 24.4%, Base Building 17.3%, Sci-fi 9.1%, Strategy 8.5%
Why You'll Like It: Features ship management and tactical combat in a charming, persistent online environment.
- #13 Endless Sky
86% matchVery Positive92% of 6,938 reviews2015
Dev: Michael Zahniser
Windows · Mac · Linux
Median: 1.0 hrsMean: 13.6 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 54.4%, Open World 15.2%, Sci-fi 9.4%, Sandbox 6.5%, 2D 5.6%
Why You'll Like It: An open-world space trading and combat game that allows players to build and command a fleet of ships.
- #14 Operation: New Earth
87% matchMixed61% of 819 reviews2016
Dev: Hunted Cow Games
Windows · Mac
Median: 2.4 hrsMean: 36.1 hrs≥1hr: 63%
Operation: New Earth is an intense sci-fi multiplayer strategy game in which you must command an advanced military facility to defend Earth from a hostile alien invasion. Create an alliance, gather resources, and unlock advanced technology to level up your stronghold!
Why similar: Massively Multiplayer 61.5%, Strategy 21.1%, Sci-fi 8.2%, Multiplayer 5.4%, Survival 3.9%
Why You'll Like It: A massively multiplayer strategy game focused on base construction and tactical defense against other players.
- #15 Gratuitous Space Battles
86% matchMostly Positive71% of 874 reviews2009
Dev: Positech Games
Windows · Mac · Linux
Median: 2.8 hrsMean: 5.1 hrs≥1hr: 81%
The first ever auto-battler game, from way back in 2009Who needs backstory? Who needs resource-gathering? Diplomacy is so last year. Gratuitous Space Battles cuts right to the chase of sci-fi strategy games, and deals with large, completely unjustified space battles between huge opposing space fleets.
Why similar: Space 32.1%, Sandbox 16%, Strategy 14.2%, RTS 13%, Sci-fi 11.2%
Why You'll Like It: Focuses on the strategic design of fleets and automated combat, perfect for players who enjoy the planning phase of VEGA Conflict.
- #16 Galcon 2: Galactic Conquest
85% matchVery Positive83% of 865 reviews2014
Dev: Hassey Enterprises, Inc.
Windows · Mac · Linux
Median: 42 minMean: 6.2 hrs≥1hr: 41%
Galcon 2 is a demolition derby in space! Send swarms of ships from planet to planet to conquer the galaxy in this fast paced multiplayer strategy game!
Why similar: Space 25.5%, Strategy 21.1%, RTS 16.3%, Massively Multiplayer 15.5%, Multiplayer 11.3%
Why You'll Like It: A fast-paced, minimalist strategy game that distills space warfare down to pure tactical movement and control.
- #17 Star Trek Online
84% 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: Massively Multiplayer 37.9%, Space 27.8%, Sci-fi 10.8%, Open World 8.7%, Multiplayer 4.2%
Why You'll Like It: A space-based MMO that allows players to command their own starships in tactical, mission-driven combat.
- #18 VoidExpanse
84% matchMostly Positive71% of 760 reviews2015
Dev: AtomicTorch Studio
Windows · Mac · Linux
Median: 3.8 hrsMean: 6.1 hrs≥1hr: 93%
Explore the vast reaches of VoidExpanse -- mine asteroids, upgrade your ship, trade, complete missions, advance your character and survive fast-paced combat with hostile aliens and mercenaries in the rich and exciting Sci-Fi universe of VoidExpanse!
Why similar: Space 44.2%, Open World 15%, Sandbox 13.7%, Sci-fi 9.8%, Strategy 8.5%
Why You'll Like It: An open-world space game with RPG elements that allows players to customize their ships for various combat roles.
- #19 The Infinite Black
83% matchMixed66% of 212 reviews2016
Dev: SpellbookPub: www.Spellbook.com
Windows · Mac · Linux
Median: 5.5 hrsMean: 83.9 hrs≥1hr: 73%
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 57.1%, Space 27.6%, Strategy 15.2%
Why You'll Like It: A persistent, browser-style space MMO that focuses on fleet building and alliance-based warfare.
- #20 War Selection
81% matchVery Positive85% of 23,033 reviews2019
Dev: Glyph Worlds
Windows · Linux
Median: 2.5 hrsMean: 27.4 hrs≥1hr: 70%
War Selection is a compelling RTS game featuring base building, resource extraction and warfare. Evolve from a stone age tribe to a distinct industrial nation with unique game mechanics and battle for supremacy with dozens of players on a unique procedurally generated map.
Why similar: RTS 21.7%, Base Building 21.4%, Massively Multiplayer 16.3%, Strategy 11.2%, War 9.4%
Why You'll Like It: A real-time strategy game that features base building and large-scale warfare, sharing the core loop of VEGA Conflict.
- #21 Stellaris
80% matchVery Positive86% of 191,915 reviews2016
Dev: Paradox Development StudioPub: Paradox Interactive
Windows · Mac · Linux
Median: 19.5 hrsMean: 142.4 hrs≥1hr: 89%
Explore a galaxy full of wonders in this sci-fi grand strategy game from Paradox Development Studios. Interact with diverse alien races, discover strange new worlds with unexpected events and expand the reach of your empire. Each new adventure holds almost limitless possibilities.
Why similar: Space 43.6%, Sandbox 17.6%, Strategy 12.9%, Sci-fi 12.8%, Exploration 7.3%
Why You'll Like It: A 4X strategy game that allows for massive empire building and complex fleet engagements in real-time.
- #22 Astro Lords
82% matchMixed65% of 227 reviews2015
Dev: Aratog LLCPub: Conglomerate 5
Windows · Mac · Linux
Median: 48 minMean: 5.8 hrs≥1hr: 44%
Player bases are located on asteroids, which travel within the Oort Cloud. Once they’ve acquired the appropriate skills, players can control their asteroid’s movements. Mass-combat enthusiasts will love the Arena: here, players can battle it out against alien races or other Astro Lord players.
Why similar: Massively Multiplayer 26.2%, Space 20.3%, Sandbox 10.2%, Open World 9%, PvP 7.6%
Why You'll Like It: A space strategy MMO that focuses on asteroid base management and tactical fleet combat.
- #23 StarMade
82% 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 36.7%, Sandbox 17.8%, Open World 13.2%, Massively Multiplayer 9.6%, Sci-fi 7%
Why You'll Like It: A sandbox space game that emphasizes building custom ships and stations for use in multiplayer combat.
- #24 Gods and Idols
79% matchMixed70% of 754 reviews2016
Dev: JatteGames
Windows
Median: 1.0 hrsMean: 14.4 hrs≥1hr: 48%
Take the role of a newly ascended deity in Gods and Idols. Carve your place among the stars in an open, dynamic, and massive MMORTS universe. Command the powers of the cosmos, form alliances, and use your worshipers as instruments to further your goals.
Why similar: Massively Multiplayer 25.3%, Space 20.7%, RTS 19.5%, War 13.7%, Sci-fi 7.7%
Why You'll Like It: A 4X space strategy game that emphasizes long-term planning and massive multiplayer alliances.
- #25 Star Hunter - Infinite Lagrange
78% matchMixed57% of 1,011 reviews2021
Dev: NetEase Games
Windows
Median: 2.4 hrsMean: 92.7 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 42%, Space 26.3%, Base Building 14%, Strategy 13.7%, Multiplayer 4%
- #26 Istrolid
78% matchVery Positive87% of 2,684 reviews2016
Dev: treeform
Windows · Mac · Linux
Median: 1.0 hrsMean: 10.8 hrs≥1hr: 50%
In Istrolid you design your own unique spaceships from a large number of parts to fit your strategy and play style. With no set units or factions you are free to create a fleet where each ship has its own balanced strengths and weaknesses, from basic fighters and bombers to hulking battleships and speedy destroyers.
Why similar: Space 34.4%, RTS 20.3%, Strategy 14.8%, Sandbox 10.6%, Multiplayer 8.4%
- #27 Space Wars: Interstellar Empires
79% matchMixed66% of 241 reviews2017
Dev: Desert Owl Games LLCPub: ToHeroes Game Studios LLC
Windows · Mac
Median: 1.2 hrsMean: 17.6 hrs≥1hr: 54%
Helm your own ship, battle for supremacy in a multi-faction war, and conquer the cosmos in this science fiction turn-based strategy game. Select from more than 100+ diverse star ships and fight for territory across a 2D hex-based grid.
Why similar: Massively Multiplayer 79.7%, Strategy 20.3%
Why You'll Like It: A tactical space strategy game that pits players against each other in persistent, turn-based combat.
- #28 Subspace Discovery
77% matchMostly Positive75% of 131 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 30.5%, Space 24.9%, Base Building 10.3%, PvE 10.3%, Sci-fi 7.3%
- #29 Elite Dangerous
76% 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 31%, Massively Multiplayer 26.3%, Open World 13.9%, Sci-fi 8.1%, Sandbox 6.4%
- #30 Astroflux
76% matchMostly Positive72% of 343 reviews2016
Dev: Fula Fisken
Windows · Mac
Median: 3.1 hrsMean: 18.1 hrs≥1hr: 69%
Play Astroflux - a retro styled, action packed MMO space shooter.
Why similar: Massively Multiplayer 62.6%, Space 28.2%, Action 6.1%, 2D 3.1%
- #31 Space Engineers
73% 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 18%, Base Building 13.5%, Sandbox 10.1%, Open World 9.1%, PvP 8.4%
- #32 Reassembly
74% matchVery Positive94% of 4,066 reviews2015
Dev: Anisoptera GamesPub: Indie Voyage
Windows · Mac · Linux
Median: 5.1 hrsMean: 26.1 hrs≥1hr: 84%
A spaceship building and universe-exploration game. Collect resources, expand and grow your fleet, and conquer your personal galaxy. Stellar ambience by Peaks.
Why similar: Space 41.1%, Sandbox 20.7%, Strategy 10.6%, 2D 7.6%, Open World 7.6%
- #33 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 52.3%, Open World 21.6%, 2D 9.7%, Action 6.9%, Sci-fi 3.6%
- #34 Space Aces
71% matchMixed63% of 350 reviews2026
Dev: DewEnforcerPub: Space Aces
Windows
Space Aces is an indie space shooter that plunges you into an online universe full of action, strategy, and fierce competition. Step into the cockpit and evolve from a rookie pilot into the most feared Ace in the galaxy!
Why similar: Massively Multiplayer 49.1%, Space 23.8%, PvE 9.3%, PvP 7.9%, Sci-fi 5.4%
- #35 PlanetSide 2
73% matchVery Positive81% of 74,412 reviews2012
Dev: Rogue Planet GamesPub: Daybreak Game Company
Windows
Median: 3.6 hrsMean: 53.8 hrs≥1hr: 77%
PlanetSide 2 is an all-out planetary war, where thousands of players battle as one across enormous continents. Utilize infantry, ground and air vehicles, and teamwork to destroy your enemies in this revolutionary first-person shooter on a massive scale.
Why similar: Massively Multiplayer 47.7%, Open World 11.4%, War 9.9%, Space 7.2%, Multiplayer 5.9%
- #36 Stormgate
70% matchMixed48% of 9,100 reviews2025
Dev: Frost Giant Studios
Windows
Median: 54 minMean: 5.4 hrs≥1hr: 47%
Stormgate is a free-to-play real-time strategy game with a full single-player campaign, 3-player co-op, and PvP versus modes on over 60 maps. Our Editor is also freely available for you to craft just about any custom game mode you can imagine. Join our development journey today!
Why similar: RTS 21.3%, Base Building 17.8%, War 15.5%, Space 13.4%, PvP 8.5%
- #37 War Planet Online: Global Conquest
73% matchMixed63% of 961 reviews2017
Dev: Gameloft
Windows
Median: 1.7 hrsMean: 34.4 hrs≥1hr: 59%
Build your army, dominate your region and lead your alliance to conquer the globe!
Why similar: Massively Multiplayer 30.1%, RTS 13.9%, War 12.7%, PvP 10.4%, PvE 9.1%
- #38 Shattered Void
71% matchMostly Positive71% of 90 reviews2024
Dev: yyy1505yyy
Windows · Linux
Space MMORPG where players can fly on different ships, collecting devices, subsystems and navigations or finding new weapons that will serve in battles. Take part in battles, explore the world, mine ore, trade, fight and build your own clan with a station.
Why similar: Massively Multiplayer 34.5%, Space 24.6%, PvP 11.4%, PvE 9.4%, Sci-fi 6.6%
- #39 Deuterium Wars
72% matchMostly Positive78% of 602 reviews2019
Dev: Disquire
Windows
Deuterium Wars is a rapid 2D shooter. Create your own aircraft and plunge into heated battle with other players. What awaits you: an extensive role-playing system, craft, trading, and much more on a single server for all platforms.
Why similar: Massively Multiplayer 46.1%, PvE 9.9%, Multiplayer 8.8%, PvP 7.5%, Open World 7%
- #40 Codename: Rogue Fleet
74% matchMixed59% of 318 reviews2016
Dev: SionoiS
Windows
Median: 36 minMean: 9.0 hrs≥1hr: 39%
Codename: Rogue Fleet is a multiplayer team-based game about spaceships combat.
Why similar: Space 59.6%, Multiplayer 15.9%, Open World 15.3%, Action 9.2%
- #41 Infinity: Battlescape
71% matchVery Positive80% of 751 reviews2019
Dev: I-Novae Studios, LLC
Windows
Median: 2.9 hrsMean: 10.0 hrs≥1hr: 74%
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 45.5%, Space 34.9%, Sci-fi 7.2%, Action 4.6%, PvP 4.6%
- #42 Star Sonata 2
72% matchMixed68% of 289 reviews2020
Dev: Landauer Games
Windows
Median: 2.1 hrsMean: 59.8 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 34.1%, Base Building 24.3%, Sandbox 18.5%, PvP 11.7%, PvE 11.4%
- #43 Stellar Warfare
69% matchVery Positive84% of 406 reviews2021
Dev: Tense Games
Windows
Median: 42 minMean: 2.8 hrs≥1hr: 45%
Space RTS with base building and ship customization. Personal passion project. More than 200 available ships, weapons and modules to design your fleet with. Contains a small campaign, several single and multiplayer game modes and a coop game mode. Also contains Wave defense!
Why similar: Space 25.5%, RTS 22.4%, PvP 9.5%, PvE 9.2%, Sci-fi 8.9%
- #44 Starbase
69% 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: Massively Multiplayer 34.7%, Space 22.2%, Open World 13.9%, Sandbox 12.5%, Sci-fi 7.4%
- #45 Nova: Space Armada
68% matchMixed52% of 221 reviews2024
Dev: STONE3 PTE. LTD.
Windows
An exceptional sci-fi strategy game based on space adventure as its core.
Why similar: Massively Multiplayer 31.8%, Space 16.1%, Strategy 9.7%, Sci-fi 9.1%, PvP 9.1%
- #46 Relentless Expanse
66% matchVery Positive90% of 102 reviews2025
Dev: Cowmera Games
Windows
Capture and upgrade planets, outsmart your enemies, and conquer the galaxy! Simple yet addicting, you can play alone or outsmart your friends in this 2D top-down space RTS. Completely free, no monetization, just fun!
Why similar: Space 24.2%, RTS 23.7%, Strategy 10.6%, PvP 9.8%, Sci-fi 9.1%
- #47 The Infinite Black 2
67% matchVery Positive84% of 231 reviews2023
Dev: SpellbookPub: www.Spellbook.com
Windows
Command a fleet of ships to hunt aliens, trade resources and loot treasure! Form corporations with your friends while fighting a never-ending intergalactic war in this open-world online space adventure!
Why similar: Massively Multiplayer 25.2%, Space 23.9%, Open World 12.5%, PvP 11.5%, Sci-fi 7.3%
- #48 Space Commander: War and Trade
68% matchMixed67% of 688 reviews2020
Dev: Home Net Games
Windows · Mac · Linux
Median: 1.2 hrsMean: 9.2 hrs≥1hr: 57%
Fight, explore the stars, trade, and lead your fleet across the galaxySpace Commander: War and Trade is an ultimate single player space-sim featuring spectacular graphics, intuitive combat and deep mechanics.
Why similar: Base Building 40.3%, Space 30.7%, Exploration 11.3%, Action 8.3%, Sci-fi 8%
- #49 Avorion
66% matchVery Positive90% of 14,288 reviews2020
Dev: Boxelware
Windows · Mac · Linux
Median: 18.6 hrsMean: 98.8 hrs≥1hr: 90%
A procedural co-op space sandbox where players can build their own space ships out of dynamically scalable blocks. Fight epic space battles, explore, mine, trade, wage wars and build your own empire to save your galaxy from being torn apart by an unknown enemy.
Why similar: Space 32.5%, Sandbox 19%, Open World 16.2%, PvE 14%, Sci-fi 10.6%
- #50 Stars End
67% 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: Massively Multiplayer 27.9%, Space 17.1%, Sandbox 8%, PvP 7.9%, Open World 7.7%
- #51 Star Crusade CCG
68% matchMostly Positive80% of 1,878 reviews2016
Dev: ZiMAD, Inc.
Windows
Median: 1.3 hrsMean: 25.0 hrs≥1hr: 57%
Star Crusade: War for the Expanse is a free-to-play, online, digital collectible card game (CCG) based in a richly styled sci-fi universe, where each player takes command of one of the six factions vying for supremacy in an unclaimed exotic sector of space.
Why similar: Massively Multiplayer 46.1%, Strategy 27.1%, Space 21.5%, Sci-fi 5.2%
- #52 Subspace Continuum
67% matchVery Positive88% of 626 reviews2015
Dev: Virgin Interactive EntertainmentPub: Subspace Continuum
Windows
Median: 36 minMean: 43.7 hrs≥1hr: 46%
THE legendary free online multiplayer space shooter! Addictive, fast-paced, easy to learn, and impossible to master.
Why similar: Massively Multiplayer 34%, Space 24.2%, Open World 9.5%, Top-Down Shooter 9.5%, Strategy 7.7%